Cheap CERAMIC JOCKEY WHEELS - a fatal design flaw!

Подписаться 127 тыс.

Просмотров 172 тыс.

50% 1

The cheap ceramic jockey wheels I’ve used all have the same fatal design flaw. But what is it?
Replacing the standard jockey wheels on your rear derailleur with ones that use ceramic bearings, can reduce the friction produced by your bicycle drivetrain, allowing you to put more watts down onto the road, theoretically making you a faster cyclist.
Ceramic speed produce incredibly high quality ceramic bearings and bearing components for the bike industry. They are famous for their bottom brackets, pulleys, and jockey wheels, but their products are ludicrously expensive. HOWEVER a much cheaper option is available!
AliExpress and eBay are littered with thousands of cheap aluminium jockey wheels sporting ceramic bearings. I have bought a number of these in the past, in an effort to make my cheap Chinese carbon fibre road bike a little bit faster, but in my experience they all suffer with the same design flaw.
Most of the bearings used on a road bike will have seals on them to protect the bearings inside from grit and grime from the road. But all the cheaper ceramic jockey wheels I have used, include bearings that have no seals!
This is a major design flaw in my opinion, and in this episode, I will dive into the reasons behind this, compare them to other options, and what you should buy instead.
Got any questions or comments, stick them below 👇 and I'll try to get back to as many of you as I can!
Timestamps:
00:31 - Intro
01:49 - Ceramic Speed Products
03:13 - Jockey Wheels Analysis
04:50 - Design Flaw
06:49 - Ceramic vs Regular Jockey Wheels
08:08 - Conclusion
Useful Bearing Article:
rushsports.co....
Product links (Please note, I have no affiliation to any of the sellers linked below):
Cheap Ceramic Jockey Wheels: tinyurl.com/y8...
Cheap Regular Jockey Wheels: tinyurl.com/yb...
Intro roll:
Created by Dev Joshi - www.go2dev.co.uk
Music:
Birocratic (birocratic.lnk....) - Fresh Healthy Perspectives
Lakey Inspired ( / lakeyinspired ) - In My Dreams, The Process
About Trace Velo:
I love cycling, and I love getting pro cycling kit for less. If it’s cheap, from China, and made of carbon fibre, I’m interested!
Instagram:
/ tracevelo
Email:
tracevelouk@gmail.com
Please note:
All products demonstrated in this video have been purchased by me, and I have no affiliation to any of the sellers or vendors shown.
In addition, I am not a professionally trained bike mechanic. There can be risks associated with using products that are unbranded, untested, or come from sources where the provenance is unknown. Please talk to a qualified bike mechanic if you are in any doubt.
In essence, be careful, do your research, and cycle safe!!!

Опубликовано:

16 окт 2024

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист

Посмотреть позже

Комментарии : 500

@Kyros9119 4 года назад

I am so anxious everytime to see if his name is still Luke.

@ECsponger2 4 года назад

I amso anxious when I see unsealed bearings on drive train

@joskes123 4 года назад

@@ECsponger2 it aint all peaches and cream baby

@keegangordon1520 3 года назад

you all probably dont give a shit but does anyone know a tool to log back into an instagram account..? I somehow forgot my account password. I love any tricks you can offer me

@austinblake6376 3 года назад

@Keegan Gordon Instablaster ;)

@sheepcraftr_ Год назад

⁠⁠@@ECsponger2Your whole chain consists of unsealed bearings.

@telephant6203 4 года назад

Only reason trace doesn’t upload as often is because he’s waiting on Ali express’ slow ass shipping 😂😂

@tomh8450 4 года назад

Havnt even watched the whole thing and can already tell it’s a banger,. This dude really getting me thro lockdown

@TraceVelo 4 года назад

Wicked cheers Tom... Also loving the profile pic 😉

@oliviergilcreest8088 4 года назад

@@TraceVelo he's outside your flat now...... 😳

@tinman7551 4 года назад

It was truly awesome to see you on GCN Tech Luke !!! I really hope it gives your channel the MEGA SUBSCRIBER BOOST it so richly deserves :D now, back to watching you talk about my next purchase. :D

@thermonuclearpants553 4 года назад

WHICH ONE! WHEN?!

@TraceVelo 4 года назад

Cheers tinMan! Yeah was a proper milestone moment for me. But honestly, BIG PROPS to you guys for spamming the comments to get me on the show in the first place! Was so freaking cool!!!

@SniperSnake50BMG 4 года назад

When the heck was that?!

@pezza3146 4 года назад

LINK MAN LINK!!!

@blockflight 4 года назад

wait, which episode i completely missed that.

@XavMathis 4 года назад

What a legend this bloke is

@Thomas-fk6ep 4 года назад

I request crunchy jockey wheel asmr.

@TraceVelo 4 года назад

*Whispers into mic* These jockey wheels are crunchy as fuck, bluckle up boys!

@corkbb8835 4 года назад

I discovered whispering asmr completely by accident when I was at university. There were two girls whispering in the library and I was listening. It was really relaxing, so I looked on RU-vid for videos of people whispering when I got home. I didn't even know it was a thing. Used to listen to multiple tabs of whispering at the same time. Crazy times. I met my girlfriend a couple of years later who asked me if I was into it. Turned out she was too. She used to watch tiny cooking videos. The crunchy jockey wheels sound a lot like stirring in a tiny bowl.

@joskes123 4 года назад

@@TraceVelo they are complete and utter gawbage, nice !!!

@SharD24x7 4 года назад

Steel jockey : we might spin slower, but we last longer Ceramic wheels: C R O M C H

@sergarlantyrell7847 4 года назад

The nylon (or other polymer) inner race will entirely negate any advantage that ceramic bearings *might* theoretically, possibly, temporarily, might have had. As soon as you put a load on those bearings the hard ceramic balls will cut (wear) away at the race, even without grit acting as a grinding paste. My guess why they don't have seals is a) cost, but also b) so they don't have the friction that the seals cause. As most of the friction in (good) bearings is from the seals and also the lubricant, the rolling friction is usually low between ball and race, but that requires both surfaces to be very hard.

@TraceVelo 4 года назад

Yeah, the nylon race just completely wore out. I think you're right about the seals aswell. From a general consumer perspective, if the jockey wheel spins freely, then it would seem to be good. If they had seals, they def wouldnt spin as easily.

@antonpeterson1245 4 года назад

I'm sure Hambini would agree. If you want longevity then have the seals in place. If you want low friction, then have no seals and run a light lubricant. You can't have both. You would probably get descent low friction results by taking the seals off a non-ceramic jockey wheel compared to a ceramic one.

@horrovac 4 года назад

Exactly what I would have said. In fact, I believe the bearing would probably perform better if the balls were from nylon as well, since they wouldn't wear out the race like that. I believe they don't put seals in there so people who are fooled into buying them give them a spin and go "wow!" and comment on how great they are. By the time they notice they are worn out and probably rubbing on the caps the whole time (if they notice at all), it's too late. Don't buy fancy expensive (or cheap) metal jockey wheels. Get some Ultegra ones, they have sealed bearings (certainly of higher quality than the chinese ones) and never wear out. Possibly 105 are also built like that. Delrin or some other type of plastic is the appropriate material for jockey wheels as it dampens the noise of the chain rattling across them. Metal jockey wheels are just stupid.

@zazio5535 Год назад

Normally the ball bearing should have same material on the balls and the rims. Any difference in hardness would cause high wearing. But yep, ceramic rims are much more expensive than the balls in small diameter.

@hmartinlb 4 года назад

All I can see is fidget spinners rebranded as jockey wheels.

@shake8569 4 года назад

You're absolutely right. Rubber seals create a slight friction drag on bearing rotation and in high-speed applications, they can even wear the seal and cause seal contaminants to enter the bearing. A better alternative would be to have a non-contact metal shielded bearing, many times having the zz or 2z suffix, or using a non-contact rubber shield made by NSK. Ceramic bearings are kinda a gimmick anyhow, they were introduced in the industrial bearing world as a replacement for electric motor bearings because they wouldn't allow electricity to pass through to the shaft of the motor. Bearing steel is already one of the hardest steels out there.

@monsterinyourcloset7573 4 года назад

The more expensive aftermarket jockey wheels do, but they cost 2-4 times as much as the ones he tested in the vid. Stylrtop for example sells aluminum jockey wheels on Amazon for $11 that have 689-ZZ bearings and look much more solidly constructed.

@gc8783 4 года назад

I need a carbon chinese road bike now. The weird thing is that 2 hours ago, before starting watching your videos I didn't.

@not-a-raccoon 4 года назад

Welcome to the club. There is no cure. You're doomed.

@Numeriwar 3 года назад

Its a waste of money

@cup_and_cone 4 года назад

The Chinese manufacturers probably leave the seals off so that people who try a 'spin test' first thing out of the package don't immediately leave negative reviews or return them. It will take several rides before people realize the bearings are completely shot... usually too late to bother by that point.

@TraceVelo 4 года назад

Cup & Cone, I recon you are totally right!!

@MatthewAtkinson 4 года назад

@@TraceVelo reckon?

@yoyodynepropulsion.systems 4 года назад

@@MatthewAtkinson Did he stutter?

@getreadyforthepunch3474 4 года назад

@@MatthewAtkinson did he stutter (2)

@ljadf 4 года назад

I reckon he needed to do some recon on whether he stuttered or not.

@austinpyke2616 4 года назад

Bruh your creativity is top notch

@TraceVelo 4 года назад

Cheers Austin!!!

@joskes123 4 года назад

Allways, Luke has his own fun comprehensive glass fiber inforced style. I too do appreciate that

@alexjohnstonjohnston5374 4 года назад

Trace Velo has become my must-see RU-vid channel - well done Luke!

@TraceVelo 4 года назад

Cheers Alex!!!

@joskes123 4 года назад

Mine too, the fun factor combined with original openings and presentation. Also the information in an honest way with again a good sense of absurd humor ! All hail our fearless leader, as Lantern Rouge would say about Remco Evenepoel.

@OldDavo1950 4 года назад

I put some of these sealed bearing jockey wheels on my 1983 Super Record rear mech, the difference was astounding. From the originals with the bushes for bearings. To me $10 well spent. Plus they were GOLD...LOL.

@andrewpintar1620 4 года назад

love your user perspective of the Ali express stuff - as well as the great humour. There's some very good value and decent quality out there - as well as some real junk. Your channel allows the bargain hunters here to go in with open eyes and informed. Cheers

@abedfo88 4 года назад

LISA, IN THIS HOUSE WE OBEY THE LAWS OF THERMODYNAMICS

@10100110101 3 года назад

It just keeps getting faster and faster !

@samuelcotton9298 4 года назад

Yeeeees! Long time fan and Chinese carbon lover. Love watching the new videos! You seriously are up there with GCN. Keep doing what you're doing.

@elijuvan4131 4 года назад

Your channel is amazing. I’m considering getting into cycling and I really like the idea of building your own bike and tinkering. Hope your channel grows a lot!

@barefeg 4 года назад

There’s no way you don’t do media professionally, this is top class. Can’t wait for when you have 1 million subs!

@gumpert7611 4 года назад

maatte your writing just keeps getting better and better!

@5tmvgy4k 3 года назад

Having used both types of bearing in alloy jockey wheels, my own findings are similar - but not exactly the same - as reported here. The ceramic 'open' type does attract grit, but a dose of lube keeps them fairly clean in my experience, much like chain lube, it pushes grit to the outside. The sealed type does bed-in quickly and spin almost as freely as the ceramic after a few rides, so yeah agree there. One benefit he didn't cover was the gear indexing. The standard plain-bearing in an OEM jockeys have a LOT of free play 'slop' effecting gear indexing. Either type of alloy wheel has very little side-to-side play (the video exaggerates the opposite to my experience). This ridged tracking of the jockey allows for more authoritive gear changes and thus indexing consistency. The other point is sound, they do create more drive-chain sound - note not more drag, they actually offer less resistance, but you do hear gear changes more as its metal-on-metal. For the money - give them a try, and while you're at it look to go up a few teeth on the bottom wheel if you can 😉

@gersonFls7 2 года назад

Yeah, haven't done that with my 105 yet. But I did with the claris I used to have and damn! Was it akways way to crispy of changing gears, for such a low price and category

@larisonjohnson 4 года назад

Luke! The guru of affordable bike components! Great Video. I heard a few pros actually remove the seals from their bearings. Must be nice to have a tech who can swap bearings every few days. But for the rest of us, RS it is. Nice Hambini callout.

@TraceVelo 4 года назад

I've heard the same thing actually. Marginal GAINZ BABY!

@panzerveps 4 года назад

Unsealed and unlubricated bearings. No wonder they spin so fast when fresh out of the box. Even steel bearings spin fast if you remove the grease.

@corporalpunishment1133 4 года назад

Dude your videos are much appreciated and you help people like me save money thanks. 👍🇦🇺

@TraceVelo 4 года назад

No worries dude, happy to help!

@Doktor_Al 4 года назад

Great video, as always. Love the shorter duration. Keep it up!

@frazhussain2211 4 года назад

Your videos are hilarious. I watch youtube all the time and these are the only ones to genuinely make me laugh out aloud. Thanks for the great content. Production is top notch

@TraceVelo 4 года назад

Thanks Fraz! Yeah I put quite a lot of effort into these vids, so really appreciate the comment!!

@metal_anomaly 2 года назад

First video I ever watched on this channel (I'm a MTBer), and i'm very impressed. Congrats on making quality content, you definitely deserve more subs!

@Two47beats Год назад

What I did with mine was take the old sealed bearing from my worn Shimano and the side casings and swapped them over onto the meroca wheel and now it's smooth asf

@richardmoody5482 4 года назад

Placed an order for cheap aluminium jockey wheels just before your video came out but bought the steel balled version. Have now received and fitted. Bike now back to changing gear properly with no missed sprockets on the cassette. Maybe slightly louder but not by much.

@benroberts7001 4 года назад

The '6' in the bearing reference defines the bearing type (radial contact deep groove ball bearing) and the 8 the cross section, 9 the bore size. I think they will have left the seals off so the bearing feels more free spinning. The only reason you get a noticiable reduction friction in the ceramic bearing (hybrid) is that there is no grease or seal contact. Hybrid bearings only see a noticable friction benifit at high speeds if lubricated in the same way. Strange to see zircona balls used in a hybrid bearing, Silicon Nitride is more commonly used. Great video and I think ill be sticking to my orginal naff looking jokey wheels for now.

@TraceVelo 4 года назад

Ben Roberts, dropping some bearing code knowledge into the comments!!! You clearly know your stuff. You are probably right about the seals though. Leaving them off means they will spin freely out of the box. More than enough to fool the average Joe into thinking they got a decent product.

@yspegel 4 года назад

Ceramic on nylon..... even with seal this is a "worst idea ever" case

@TraceVelo 4 года назад

Yeah that little jockey wheel did not stand up to the test of time!

@paavanpanchal1067 4 года назад

Yes exactly, an engineer has obviously not designed that thing

@Hosant123 4 года назад

Often those bearings are nylon too.

@austball13 4 года назад

I come for the intros and stay for the fantastic content! Keep it up, Trace Velo!

@tocaamerillo431 Год назад

Not long before watching this video I ordered cheap ceramic bearing ones - or so I thought. After watching the video I rushed to see if I can still cancel the order, but it turned out I actually ordered a regular sealed bearing set. Must be some sort of bicycle guardian angel in action

@jarrettttttt 4 года назад

every single video here is top-notch, if it wasn't to such a niche audience base, subscribers should be in the millions

@Calfa2x 4 года назад

Great content, love your sense of humor and the amazing quality of your videos.

@TraceVelo 4 года назад

Thanks Calfa2x!!!

@tatokutalia 4 года назад

Finally! the wait is over! new video ☀️

@FuriousGato 4 года назад

Luke, I have found your channel via GCN and am subbing. Watched all of your clips and they are all pure gold! hahaha, keep it up matey

@boyacki Год назад

4 seconds in and this is the best video so far!! Love how thorough your work is and sharing other useful sites to improve everyone's awareness. love the comparison of wear , very informative! the jokes are on point! Can a seal be transplanted to get the best of both worlds?

@brendonshane7904 3 года назад

i Like the way he perform infront of camera! energize and clear

@janmichaelnavarro1916 4 года назад

Somebody: Is it Cheap? Luke: Yes Somebody: Great? Luke: Definitely Yessss

@TraceVelo 4 года назад

YEEEEEEEEEEEEEEEEEEEEEEEESSSSSSSSSSSSSSSS!

@joskes123 4 года назад

@@TraceVelo certainly if it's green or carbon, or even better green colored carbon ....

@manueldeubler1127 4 года назад

Trace Velo never disappoints. Have had the a pair of regular Chinesium jockey wheels on one of my road bikes. They workes nicely. However, as with all alloy jockey wheels, they add a little bit of noise compared to Shimanos "plastic" ones.

@TraceVelo 4 года назад

Yeah I found the same thing. The shifting was nice and sharp, but yeah a little noisier.

@samthemechanic89 8 месяцев назад

What about taking the seals from the steel bearing and putting them in the ceramic bearings???

@keithchristner4522 4 года назад

as a MTB'er, bearings without seals give me the sads. anyway, great work! any chance of you giving an "unbranded" mountain bike build a go?

@liveloveride1676 3 года назад

these have seals and cheap www.ebay.com/itm/383925765240

@TryboBike 4 года назад

8:03 - if those bearings were sealed, they would not spin as freely out of the box. RS bearings have a contact rubber seal which introduces tiny drag to the bearing and an aluminium pulley doesn't have the inertia to overcome it.

@whssy 4 года назад

They also spin so smoothly because there is no grease, which is also why they collapse so quickly.

@solarflare1008 4 года назад

My congratulations in that boxing analogies.

@johnfarren4247 4 года назад

Well my experience has been somewhat been different than yours. I have several bikes with Campagnolo 10 speed gearing. They come from the factory with 10 tooth plastic jockey wheels. The 11 speed ones that Campagnolo uses are 11 tooth and they shift slightly better on the small cogs in my opinion. So as a experiment I ordered some Campagnolo suitable cheap ceramic ones as they have 11 teeth to use on my 10 speed setups. They fit perfectly. After two years of heavy use on now three of my bikes I have been quite pleased. Mine are sold as J&L Ceramic Ceramic Pulleys on eBay for $11.99 U.S. They have the open bearings and have plastic pulley bodies. They are quiet, shift very well and I have had zero issues. I did use a drop of oil on them when installed. The shifting was slightly improved and I felt the chain wrap was slightly better due to the larger diameter. I live in Florida and only occasionally get wet when riding and this may help with the longevity. By the way Campagnolo Super Record 11 has one Ceramic ball pulley and one Ceramic bushing pulley. I have one bike with that setup and the cheap ones work as well as these. The wheels come with no directions. When you install them look at the wheels for rotation and position information molded on the side of them. Like you, I buy Chinese Carbon bits like one piece handlebars , seatposts, computer mounts and seats. Almost everything has been made well and works well without spending a fortune on my hobby. As an aside, the pedals that you tried and didn't like, well I use those also. I have had a positive experience with two pairs of these. I run the black cleats and put the tension right at the middle of the screw. No noise, however they for someone who likes a high clamping force I do not recommend them. The bearings are very smooth and they are easy to use.

@blacktophemirt8526 4 года назад

thanks for sticking to the bikes and not race baiting like GCN has been lately

@avoycendeether8869 4 года назад

Great vid! Always wondered about all those under priced ceramic jockies. Clever comparison.

@smitajky 4 года назад

I LOVE sealed bearings. I live on a dirt road. Dust, mud, grit and stones. And I do large distances. So robustness and lack of maintenance are far more important than low friction. I am amazed that so many components are totally exposed to road muck. Pedal bearing for example. Many motorcycle chains have seals in each link but not pushbike chains. Are bikes merely intended as toys?

@zdravo4 3 года назад

Good video, thank you! I ordered few of this, some are with metal bearings with metal seal, some are with rubber and some are ceramic (it seems open) as you have. I will try them when I get them 👍

@minga85 3 года назад

👍Interesting video, how did you get the covers off the ball bearings?

@elimccullough1008 4 года назад

Great video but could you not get a sealed ceramic bearings to put in the over sized cheap wheels

@tornagawn 2 года назад

Back in the day, upper jockey wheels had lateral float. Maybe only on MTB, as I never had a road bike back then. I had lubricated high end ceramic bearing (from Boca) in a fishing reel. On free spool it could spin over a minute. That knackered bearing sounds like my knees…

@JackofNothingess 4 года назад

I see what you did on that bearing pun, and I can't help but feel it was a-pawl-ing. I guess that's just how you roll! Cheers Luke!

@alexlee8888888888 4 года назад

Any chance you tried taking seals from the cheaper set and putting them onto the ceramic set? Seems like the overall diameter is pretty similar so you could possibly seal the ceramic set yourself potentially.

@honestmstk9790 4 года назад

Great video Luke. Do the cheap standard ones offer any benefit over the stock sihimano ones? cheers

@TraceVelo 4 года назад

To be honest, not really. The stock ones are totally fine, and last forever. But they do eventually wear out, and replacing them with some flashy looking aluminium ones for like £4, that's a win in my book!!!

@honestmstk9790 4 года назад

@@TraceVelo agreed, I watched your segment on gcn and it really seemed like they made you focus on the negatives of buying from China. They are known to be heavily biased towards their sponsors, what do you think about that? (a feature is a feature nonetheless ;)

@sszibler 3 года назад

@@TraceVelo Amusing video from an acting perspective - entertaining! What I didn’t understand was whether it would be better to get more moderately-priced ceramic bearings that I assume would be sealed (this I don’t know). The cheap ones sound like trash. Spending $1600 or whatever is ridiculous. But aren’t there ceramic ones for, like, $20 that are sealed and better than the originals? Either with less friction or lasting longer? Also, I’ve seen people mentioning brifters a few times. I’ve been wanting to replace a 10 speed left Shimano brifter for a long time, but am always dissuaded by what seems like over-priced offers because they are rarer. This is for a CAAD9. It has been sitting for a couple of years so I’ve had to resort to my 1990 Specialized Allez, one of the first carbon fiber frames, but not in the best shape (pulley wheels included). Any thoughts? Thanks!

@waynecheney6352 4 года назад

Luke, my back ordered Sensah groupsets were mailed out today... on 1 week shipping hold for the new upgraded shifters to arrive at the various AE stores. My AE seller, describes the upgraded shifter as having the "golden gear", time will tell. Tried to push for you to get a replacement set of shifters.... who knows? My first venture into 12 speed, wish me well.

@amc1974 3 года назад

Looking for guff on AliExpress at £2 ! Nope never done that 🤣 Keep up the great content, and good sense of humour

@DandBGhostHunters 4 года назад

Question - you can get 689-2RS ceramic bearings for around £7 for a pair, what would happen if you put them in the ceramic jockey wheel? Would every single physic paper ever written be instantly invalidated? Enquiring minds want to know.

@chrisbowman2030 4 года назад

I got some Al jockey wheels from Wuzei brand on AliExpress. They came with ceramic balls on steel races (inner and outer). I greased them with blue park tool lube before installing. Super smooth without excessive play after 1500km on my gravel bike.

@charliecroker7005 3 года назад

Hello. The seals don't guarantee reliability- quite the opposite. I bought a set of BBB jockey wheels last winter. They have a ordinary 2RS bearings in them- great, I thought. The bike did a season of racing, culminating in one wet TT. I came to service it, some days later, and found the lower jockey wheel was solid- it would not turn. I removed it, then levered the seal off. There was no visible debris, or indeed corrosion, but it would not turn. There was not much grease there, either. I swilled it out with degreaser, and eventually got it moving. I then filled it full of grease, put the seal back, and resolved to check it regularly. That last TT was about 8% slower than usual, so the problem might have been developing for some time. Not good. More recently, I noticed the nearly-new front wheel on my CX bike was similarly horrible. Upon dismantly (opposite of assembly. I hereby initiate a campaign to have that word inducted in to the OED), I noticed that the balls on one side of the wheel were rusted to fk, and the races were also rusty. I replaced the balls, gave the races a scrape and packed it solid with grease. That wheel has lip seals, just like a 2RS bearing. CONCLUSION- Standard engineering seals are not up to the job of sealing bike bearings. You need lots of grease in there. The bike manufacturers don't realise this. Carefully lever the seal off a new one, and stuff grease in. PS Use calcium grease- lithium grease is not waterproof (At least, it wasn't the last time I spoke to a grease expert. He was TD of national oil co, with a PhD in lubrication). You can get calcium grease for a tenner a pot. It is a nice white colour. PPS don't even think of using those fancy perforated jockey wheels for CX. Grass will find a way into the holes, mud will build up in the cage and, if you know about CX, you will know what happens next. I make anti-clogging CX bits, so I know what the enemy looks like! Good luck.

@fast.biking_freddy 4 года назад

Hell yeah! great to see you know about Hambini, aged 5

@mmiqdad 4 года назад

I sense that luke consumes the occasional AVE content.

@TraceVelo 4 года назад

Well to be fair, my bike is a skoocum choocher

@1MartinPL 4 года назад

Been waiting for this video for a year now. Can you try buying ceramic bearings from inline skates and replace it? or replace it with like ABEC 7 bearings from skate boards. But, maybe the diameter of the bearings differ on the jockey wheels. A follow up video would be interesting :)

@henrylees7814 4 года назад

Used a few of the cheaper jockey wheels, the standard bearings can rust but are easy to replace with stainless ones and then go for years

@waynecheney6352 4 года назад

Great topic, super informative... I too will go cheap every time. $1600 for derailleur ceramics, who knew? My usual jockey wheel maintenance, sad to say, is... ooops, another sorta accidental shot of Teflon wax-based chain lube. Aliexpress seller messaged today: New Sensah shifters, with the upgraded metal gear, mailed out today to AE sellers. My back ordered groupsets should be sent out in two days.

@aveedub7403 3 года назад

I have since in the last month bought this oversize carbon hanger and I checked the bearings which now had clear rubber bearing protectors.

@SniperSnake50BMG 4 года назад

Finally!!! Been looking if pulling the trigger on one of those...

@TraceVelo 4 года назад

Yeah def stick to the standard non-ceramic ones. They are cheaper, and work like a dream!

@SniperSnake50BMG 4 года назад

@@TraceVelo curiously the original Shimano are more expensive here that I though. I was gonna change the jockeys in my Sora training derailleur and they almost cost the same to change the whole rear mech, ended buying a new one for the bike and leaving the old one in my Urban all terrain bike

@TraceVelo 4 года назад

Yeah the official Shimano jockey wheels are pretty pricey. When you can pick up some aluminium ones for £2 on AliExpress, bit of a no-brainer IMO

@IantoCannon 4 года назад

I don't want to be a pedant here but a bike that pedals itself would violate the *first* law of thermodynamics: energy cannot be created or destroyed. The second law of thermodynamics states that entropy cannot decrease. A bike that pedals itself won't decrease entropy.

@AnatolyGatt 3 года назад

The intro alone deserves a like

@smithleon 4 года назад

I've been using the cheap (sealed) chinese jockey wheels in my MTB and Road bike over 1000s of miles and they've been holding up well, for the price I think they add a nice bit of bling and work absolutely fine.

@TraceVelo 4 года назад

Yeah the ones with the sealed bearings are rock solid!

@rizkiyoist 4 года назад

Oh wow I got one of those, last time I checked before replacing the chain they are fine even after hundreds of km. I'll check if they are crunchy now. Might explain why I kept getting dropped by my buddies, you know, any excus~, ehm, explanation counts. edit: nope, mine definitely not crunchy, but not super smooth either, it has quite a bit of play though, I need a new one.

@db613 4 года назад

I bought KCNC $25 eBay, they were regular bearings with rubber seals, but no matter how much I oiled them they always squeaked. I also bought the rear oversized cage, and that had a worse design flaw, in that the spacing shaft that sits between the spring and the fastening bolt, to sit it on the derailleur was not properly spaced like the Shimano original. So when I tightened the bolt to attach it, the pressure from the bolt did not allow the cage to move freely, I had to find a spacer washer that was just small enough to fit there outside the spring but inside the shaft and finally allowed the cage to move freely when tightened to full torque. What a mess, then shifting was below par likely because my makeshift "spacer" was not perfect. What a hassle it was, in the end you pay for the engineering when buying authentic...

@mmb4063 4 года назад

Used and worn out several of these. Usually alu teeth wear out and to prevent risk of collapse i replace them. Spin quite well after long use. 1 time bearing seized completely. agree they are not the best but not bad either

@WillPower46 4 года назад

Ceramic is super hard, Nylon and Aluminium is soft. What happens is that the hard bearings destroy the soft race. A seal would only help a small amount. In order for the Ceramic bearing to last it needs a hard race with a proper seal and lubrication as you have said.

@reginaldscot165 4 года назад

In my experience in Asia (I work in a bike shop) the cheap ceramic jockey wheels do have seals... however they are still rubbish because grit gets in, the ceramic balls wear out the steel races and the cheap aluminium wheels themselves snap after not much riding. Also the shifting performance is way less then the standard Shimano wheels.

@waynecheney6352 4 года назад

Luke, Just purchased a cheap China Meilan GPS cycle computer for my new gravel build. Flying blind, could you cover as a topic? So many, not sure which is best... and what they will pair with, models? Have seen these Meilan computers, starting at $19., for a wireless GPS!! Not too shabby. I decided to go hog-wild and spent $24, on mine, mind you, with free shipping! Love my Garmin 520 for my road bike... thinking that my Garmin would find life living on a gravel bike... a little too stressful.

@juliocesarvazquez3992 4 года назад

I did a hack on my rear jockey wheel derailleur "Dura Ace 10 speed", I just remove the internal dust washers(they are very small), I don't envy any ceramic jockey wheels !, the secret is to lubricate all and too the chain with silicone spray ... Please don't use anything else. Clean the chain well with degreaser, then wash it well with water, then dry it ... and then lubricate with Silicone, I use this and I buy it at walmart "WD-40 BIKE LUBE WD40 SPECIALIST SILICONE 11oz AEROSOL" , spray that part twice a week; When you stop pedaling it seems that you have an electric motor pushing the bike. !

@juanorozco1602 4 года назад

Just the intro is worth watching the hole video. Where did you got the inspiration from? DemolitionRanch maybe?

@edge23310 4 года назад

Awesome vid again Luke, cheers 👍🏼😘

@BohTech 4 года назад

Hi Luke! Where are you going to make video about speed pedals? Want to buy them, but I am waiting for your great review 😊👍

@p504504 Год назад

Saved me from wasting my money and time. Thanks Luke!

@Dippns 4 года назад

It'd be sweet to see you team up with Hambini and have him analyze you frame's BB shell and your crankset, I wonder where it would end up on his scale.

@monsterinyourcloset7573 4 года назад

Hambini is toxic AF, he shouldn't come anywhere near this channel. Dude is cool when he's talking about bikes but as soon as he gets off topic and starts his rants about women and politics he becomes an absolute cringe lord.

@VishnuRajendranAmboo 4 года назад

The reason why I find Luke's channel better than gcn, it's a everyday practical question most riders will seek to find out.. While gcn is more branded this and that.. Not for the commoners lol 😂🤣

@brianwright9514 3 года назад

I actually bought these jockey wheels. Entirely because they were cheaper than the replacements from SRAM. Don't care that they're ceramic bearings... Kinda hope they're not. Working fine so far on my mountain bike.

@SianaGearz 26 дней назад

I've never bought any of these particular items, but one of my ali rules is, all the critical standard size bearings get yeeted first thing and replaced by proper ones that i spec depending on use case. And replacements can come from China or they usually come from a local supplier but NEVER from a random vendor, always from a bearing specialist. Not actually expensive.

@bigbroondug 4 года назад

How did you find shifting with the sealed wheels? In the past when these were fitted they performed poorly because there was no float, a bushed jockey has float which helps move the chain. Only needed on the top pulley mind you. This was the flaw I thought you were going to mention. I could see those ceramic jobs being used by some TT'rs, where they meticulously prep a bike before a race. Also some higher end groupsets came with ceramic bushes bitd, not sure if this is still the case, or if it even made a difference.

@baptistelanfranchi7588 4 года назад

Thanks Luke for this awesome video as always. I have a question : do you think it would still be a bargain to buy the cheap jockey wheel and change the bearing yourself for a nicely sealed ceramic one ?

@TraceVelo 4 года назад

Yeah potentially if you can find some sealed ceramic ones that are the same size. Honestly though, I would just get the standard bearing ones, they last forever, look super flashy, and are crazy cheap.

@baptistelanfranchi7588 4 года назад

@@TraceVelo I might give it a try, thank you for the answer.

@TraceVelo 4 года назад

No probs 😎

@rako1700 4 года назад

:D OOOH NOO! Just ordered some Ceramic ones 2 weeks ago.. Guess I might need to reorder some normal ones thanks mate for the good vids

@bblolwut 3 года назад

love all the videos, especially the close ups and details! any difference in RZ vs RS bearings? i was sent RZ by my Chinese friends but from reading, it seems sealing properties aren’t as decent..

@stevenagel6096 4 года назад

Did you get a replacement for your left shifter?

@ManuelMartinez09 4 года назад

my experience with jockey wheels (MTB): - Old ones (no bearing) are total crap: mud, rust, lots of friction. - Normal with bearings are the best, they spin slower but if you keep it clean on the outside almost need no service. - Cheaper aluminium ones are very good looking and smooth rolling but they require service more often than classic ones. - Cheaper Ceramic are very good only if keep it clean... by blowing or just water, but are very delicate. For me the best are XT-M8000 Pulley wheels, smooth and durable. Ultralight aluminium are hard to clean, and some aren't smooth and too wide for 11 speed chain.

@blacklangster1141 4 года назад

Hey Luke, would it be possible to buy both and splice the dust shields from the steel bearings to the ceramic bearings and overcome this problem? I know it defeats the purpose and why not just use the steel you’ve bought. Just curious

@TraceVelo 4 года назад

Yeah had a few people ask this. I might give it a go and stick it on the gram actually...

@interfearance3269 4 года назад

Haven't you seen the vids on ceramic speeds jockey wheels. They are actually slower in many cases due to weight and offer little advantage. You can get steel bearings with similar rolling resistance and wear down 4 or 5 times as slow for 20 bucks

@hallsimon 2 года назад

Hey Luke, Great videos! Do you have any tips on removing the outer covers on these types of jockey wheels? They can be quite hard to remove. Thnks

@Hosant123 4 года назад

Looks like perfect jockey wheels for the velodrome! But track bicycles don't have gears... :S

@darrenconway8117 4 года назад

I'm an Engineer. Chinese bearings tend to be filled with metal balls, rather than bearing steel spheres. An upgrade to the aluminum jockey wheel is to replace the bearing with one from a reputable supplier. Same type. Same number. Better quality.

@Chickenmusk 4 года назад

Crazy question. Could you not take the seals out of the regular bearings and press them into the ceramic ones?

@TraceVelo 4 года назад

Yeah potentially. I would just stick with the regular sealed bearings however. Might be worth a shot tho...

@bartvv1770 4 года назад

Luke, after your sensah shifter failure, are you still using the groupset? I am thinking of building a "chinarello" for my girlfriend, for the occasional rides together, and i wanted to fit that sensah groupset.