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Should You Fit A Di2 Or Mechanical Groupset To Your Bike? | GCN Tech Clinic

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Should you buy mechanical Dura Ace or Ultegra Di2 for your road bike? Can you use time trial specific tyres on a normal bike? Can you ride gravel on a non-gravel specific bike? All of these questions and more answered in this week's GCN Tech Clinic!
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Опубликовано:

5 авг 2024

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Комментарии : 480

@olivercornelius7662 3 года назад

yes you should. Without a di2 or mechanical groupset it would be very hard to change gear x

@derekcorporon365 3 года назад

lol

@masterofsaveloy 2 года назад

Top kek

@tonyg3091 2 года назад

Hahahah true!

@nathanwallace3517 Год назад

Lmao

@berkertaskiran 11 месяцев назад

Just pull the wire.

@manuelcalleja92 3 года назад

9:25 for title question. You're welcome.

@lukewang4676 3 года назад

Thanks man. These guys rlly need some chapters

@loichansduskic6545 3 года назад

🤘

@ricecrash5225 3 года назад

Legend !! thank you

@omgahandlelol 3 месяца назад

105 ftw

@massimilianopalmo8611 3 года назад

I love my Dura Ace 9000 mechanical. Cycling for me is about leaving the electronic world, not moving closer to that kind of dependency. My cycling computer is a simple speed and odometer cateye. If the power goes out or the charge fails, I'll still be out on my ride.

@adamlynch9153 Год назад

Exactly. People always claim to want to be environmentally friendly. You know what’s more friendly than electric thinks? Mechanical things drive by human power.

@tmbmtl 3 года назад

Until 4 years ago, I was still on a down tube shifting bike with a 7 gear cassette. Got an ultegra di2 and loved it. This year bought a 105. Both groups are exceptional. I have no problems going from one bike to the other.

@ivarbrouwer197 3 года назад

Mechanical VS DI2 - If you buy the mechanical groupset, the exces budget can be used for better wheels etc, I think this is a better investment.. (this is the route I went, and arguably I shifting does deteriorate over time, but new cables etc once a year is usually good enough to keep it working pristine)

@bendunbar8334 3 года назад

The di2 bull, mechanical works very well shifting wise, he didn't even mention that say 105 and ultegra mechanical shift amazingly well and it's only a luxury for di2. GCN and others sometimes make it out like a bike won't move if it ain't got di2 hahaha

@Kingjay814 3 года назад

That's my plan. I saved like $500 by opting to go with a 105 group set vs Ultegra on my new bike. I genuinely couldn't feel the difference between the two. I'm planning on using the money saved for some new accessories and eventually a set of wheels

@dpstrial 3 года назад

@@bendunbar8334 I agree. I have used Ultegra, Dura Ace and GRX mechanical groupsets and they all shift about the same.

@xchopp 3 года назад

@@bendunbar8334 105 did NOT work well on my 2014 Synapse. It was the internally-routed version and it sucked worse than Claris. Seriously, I have had both. When I got Di2 I was stunned at the quality of the shifting.

@bendunbar8334 3 года назад

@@xchopp the latest model of 105 came out in 2018.

@robertkraft4652 3 года назад

For the saddle adjustment, a bike mechanic once told me that sometime you need to lube dry screw threads (as counterintuitive as it may sound). The road vibrations would make them loosen and the lube prevents helps to prevent this.

@philblyth1526 3 года назад

With the saddle issue, it is worth checking the seatpost and saddle are compatible rail sizes. 7x7mm round railed saddle will always slip in a clamp designed for 7x9mm oval railed saddle

@drval 3 года назад

Di2 Ultegra for me. I retrofitted my 2014 Specialized Allez Elite with Di2 Ultegra primarily because of the persistent neuropathy in the first two fingers of both my right and left hand. That made mechanical shifting very challenging and the Di2 solved that problem. It works like a charm and now I can ride far, far longer and feel confident that I will feel everything, except for the neuropathy. Yes, the neuropathy is bad but that’s what happens when you completely sever the long head bicep tendon in both shoulders...

@oliverleclere1829 3 года назад

1st question...i've been using vittoria corsa speed 2.0 in 25 mm width since two years now day in day out...2 punctures in all (one in the dry one in the wet both sealed by stans race sealant and later fixed with a patch for peace of mind) and 4 tires used so far on a Colnago c60, dt swiss prc 35's and at 6 bars pressure (tubeless of course). LOve TT tires!!!

@arifazhari7598 3 года назад

Hi GCN, perhaps you might wanna cover in depth about tyre. In my knowledge, rolling resistance is the measurement of how much energy lost to deform and re-form tyre when tyre is subjected to motion/rotation force. For example it takes 25 watt to deform/compress the rubber compound and it only takes around 15 watt to return to it's original form. Please cover this topic about tyre from tyre manufacturers like , continental,schwalbe, or pirelli. Were getting tyred seeing unclear theory about tire. #askGCNtech

@GregTheGuitarist 3 года назад

"tyred" - good pun there!

@user-ns3nb9ej6i 3 года назад

Really enjoy the school days in GCN Tech, Hope that in near feature I would come up with some fun questions ;D

@raff5604 3 года назад

In reference to the saddle movement. I have a Bianchi Aria that came with an aluminum saddle mount that interfaced with the top of the carbon post. The two materials do not work well together with friction, my saddle kept tilting up and down. I had to order the newer version of the saddle mount which is all aluminum. The saddle clamp is the one that allows it to be reversed for the triathlon position. I hope this helps.

@Sir-Prizse 3 года назад

I actually killed my first road bike because I was riding 28 mm tyres and all the sand, mud and dirt ate through the frame like sandpaper. There are 4 mm of material missing from the brake bridge where the bolt attaches the rear brake. I just ignored it and noticed it too late.

@robsworder 3 года назад

I don't know of frame failures on a turbo, but I know someone who snapped a crank (Dura-Ace) in the sprint for the line!

@woozertoo 3 года назад

Ollie’s reaction to reading the portmanteau “brifters” edited out.

@sylfix2680 3 года назад

Opus crescendo with ultegra Di2. I love it

@saracen888 3 года назад

The 2021 TCR disc, 2021 Emonda, Cervelo S5 and all Canyon Ultimate rim brake bikes are not compatible with the Wahoo Kickr range. Check with bike manufacturer and trainer brand compatibility before using

@AdamHaywardHappyCat 3 года назад

The saddle issue: I had the same and fixed it by inserting a little washer between the parts which I cut from ~1mm thick PVC wrapping. HTH.

@velocirapture89 3 года назад

I have both and have had pros and cons of both. Mechanical: - PROS: less expensive for same level. Rear is easy to setup (if you have done it before). Reliable, never "runs out of battery." - CONS: shifting not quite as crisp (though still good for Ultegra+). Front derailleur is a ***** to setup. Cables stretch, fray, etc. Frequently requires minor adjustments. Di2: - PROS: looks and sounds awesome (seriously, it does). When setup properly, operates flawlessly every time. Requires little maintenance. Shifts are crisp and fast. Auto micro-adjustments - CONS: pricey. I have had to replace several parts and it hurts shelling out $200 for a derailleur. When it malfunctions, you're hosed; ride over. When battery dies; ride over. Can be difficult to setup if you have never done it before (rather easy afterward, though).

@asicdathens 3 года назад

Both my frames barely take 28mm width tires. Also, I had to re-tension the spokes to move the rim a few mm to one side because the sidewall was rubbing on the frame.

@rp6760 2 года назад

Mechanical all the way for me. GCN will never say a word on the down side's of electronic. That's why we have Durainrder ...😜

@derwynoxley7247 3 года назад

I use water in the bottle and a pocket with dates and cashews. I keep it real simple, really affordable, all natural. Also, if you check many of the energy snack bars, many have dates and cashews as ingredients. Keeping them in a more natural state is healthier and cheaper. Works for me, but as Ollie mentioned, ends up a very personal choice.

@Michael-0000 2 года назад

As a Biltong munching South African, I particularly enjoyed the, „going the classic Masai route“ quip!

@BixbyConsequence 3 года назад

Go old-school with GORP (Good old raisins and peanuts) -- good combo of carbs, protein and fat. Hard to do better for long-ride fueling. Substitute whatever dried fruit and nuts you prefer. Dates and cashews is my fave.

@stoempert 3 года назад

Re the saddle issue: if the saddle clamp has two screws, tightening them gradually and evenly alternating between the two sometimes helps.

@jasonmcgrody9472 3 года назад

Widest tire clearance I've seen on a road bike is 38 mm so you could put okay gravel tires on those. I suspect we'll see such tire clearances on more and more bikes.

@timwheeler8618 3 года назад

Ollie, you would have to use a 4700 rear mech with the 4700 shifters, however 4600 will work fine.

@justinemarkdajay7485 3 года назад

It will work, but not as good as the 4700. I installed the 4600 rear mech with the 4700 shifters and no matter the tuning, 1 or 2 cogs will always be noisy because of the difference in actuation.

@Sadettinz 3 года назад

I guess there is a misunderstanding with the 105 5700 and Tiagra 4700 compatibility. They simply won't work together since the 4700 shifters have the same cable pull ratio of newer 5800 and 6800 series. @MasJoko Your 5700 rear derailleur is compatible with older generation 4600 brifters.

@thecappy 3 года назад

I bought a bike with grx mechanical. I'm slowly gathering the pieces to upgrade to grx di2. All the little wires are backordered.

@jacksquat2067 3 года назад

Shamanth K S: Hoping you see this.. I own a Kestrel and had a similar problem where my seat would just randomly tilt back or forward every second or third ride. It turned out the seat clamp bolt was working its way loose over time. My remedy was blue loc-tite (the weakest one). The bolt no longer backs out and the seat hasn't dumped me off in over a year. I've had the bolt out several times for adjustments without difficulty or damage.

@andrewmcaree2152 3 года назад

As a cyclist of a larger build (19st and 6'2), is it worth investing in a road bike (due to higher risk of punctures) or would I be better to look at gravel bikes due to the wider tires even though I ride on tarmac roads?

@Avioto 3 года назад

Woah I didn't know Aiden Pierce watched GCN. Hopefully while wearing his iconic cap!

@bicyclist2 3 года назад

The first "electronic" groupset was made by Mavic. I've seen it in person, it looks amazing. Unfortunately most bike shops won't work on it. I'm not a fan of Di2. Thanks.

@user-cx2bk6pm2f Год назад

SI.Shimano.. awesome tip! Thanks Ollie!

@JoshWillcock 3 года назад

Rick Snyder - My protein Flapjack is fantastic for riding. 300 cals, 20g protein, high carb and you can fit 3 easily in the smallest jersey pocket. About 60p each when on the 40% off sales.

@infinati 3 года назад

I wanted to go di2 but seeing as how di2 is going to change this year (2021) I slapped in a mechanical set and will wait for electronic next year, because otherwise the di2 I woulda bought today would have been outdated by the end of the year!

@TheDom1961 3 года назад

Love my 9100 Dura Ace mechanical.

@Kingjay814 3 года назад

#AskGCNtech I own an Orbea Gain and I love it. While it might not be necessary, I was considering upgrading the wheels. Is that something you can do on an e-bike? Especially one with a hub drive like what Orbea or Pinarello use.

@wolfkit629 3 года назад

Hi Olly, love the show. I have a 1984 cannondale sr400 with a six speed cassette and friction shifters. Can I add a third chain ring for lower gears. How what would I need. Thanks!😂

@weekenderfam7965 2 года назад

eventually more and more bikes will be equipped with electronic group set. I am looking for a new bike to replace a 2006 TCR which I have spent a lot of time upgrading the components myself. The difference of the bike I am planning to get is $1000 USD between Ultegra Di2 and mechanical, if replacing the set separately will definitely cost much more. So to me that’s worth going to Di2.

@volkerdietrich6019 3 года назад

#gcntech I am very happy with waxed chain on my bike... no more degreaser needed, the chain looks always nice and even regular soap is enough to get your hands ready for the next ride after cleaning the drivetrain ... but it's cold in Bavaria, now. Does a waxed chain work as good as a greased one below 0 Celsius? Does viscosity matter? Regarding this, wax is not great when it comes to frosty days.

@mrGTD170 3 года назад

!!!!!WRONG!!!!! , Shimano changed the pulling ratio of 10 speed with Tiagra . The Ultegra 6700 and 105 5700 dérailleurs won't work with Tiagra 4700 STIs

@c.franca2259 3 года назад

Yes absolutely right, 4700 series have the same pull as 11speed shimano components. You can use a 11s speed derailleur with 4700series shifters with a 10s cassette.

@palicar 3 года назад

Cannings is outraged.

@lovecycling193 3 года назад

No but now a R4700 user could up grade to a R9100 mech 😉

@hannahuang6118 3 года назад

4700 shifters works only with 4700 RD and all 11 speed RD. In this case, all 10 speed Shimano shifters except 4700, should work with 5700 group.

@lovecycling193 3 года назад

@@hannahuang6118 @Hanna Huang your wrong, When shimano introduced their new slickshift technology that basically means the shift feels equal tension in the lowest gear when the spring is stressed as it does in the highest gear this means R5700 and R6700 will work okay in the highest gears but the pull ratio lowers as it shifts to the lower gears to create a nice low tension feel at the levers. This was first introduced in R9000 R6800 and R5800 and has been carried on through the new R9100 R8000 R7000 and R4700. Basically if you try it your be constantly chasing the indexing in the lower range gears as they just won't run silent or as smooth.

@SimoD587 3 года назад

Di2 to mechanical at the same price point is comparing apples to oranges. If you want to save weight get dura-ace, Di2 if you can afford it will get you 'trouble free shifting' but the mechanical is like butter and is likely as good as it will ever get from shimano if the 9200 series comes with only electronic option. If you want similar shifting performance to the dura-ace Di2, but don't want to shell out the clams and don't mind the slight increase in weight, then get ultegra Di2. If you don't care about weight and don't mind adjusting your indexing once in a while then go the ultegra mechanical. but at that stage, just save some serious money get the the mechanical 105, that groupset punches well above its price!

@michaelkennedy9064 3 года назад

Don't do anything until Shimano releases the new groupset

@anthonyhilchey8215 3 года назад

Like you’re comment Funny 🤣

@manfredmuench2657 3 года назад

I asked GCN some weeks ago - with no reply - if you could operate Di2 with Climber buttons only, hence saving the expense of new shifters as they are the most expensive bits. I just had the following a reply from Terry@ Bettershifting.com - check out his website for all things Di2. "It'll [Di2] work with any Di2 shift unit. This can be a briftter, or just a Di2 button. SW-R600 for example. Now.. the shift units do need to be Di2/Shimano shifters with some kind of Di2 logic/pcb. The SW-R610 shifters the only one that will NOT work on its own. These are basically just switches and they only work when plugged into the dedicated sprint shifter port on rim brake brifters". Thanks Terry

@Rover200Power 3 года назад

"Should You Fit A Di2 Or Mechanical Groupset To Your Bike?" - Yes, I would fully recommend fitting either a Di2 or a mechanical groupset to your bike.

@lechprotean 3 года назад

umm how about a fixie? ;)

@actualperson1971 3 года назад

SRAM: "Am I a joke to you"

@Guitar7776 3 года назад

CAMPY: sono uno scherzo per te?

@simonpeneau7802 3 года назад

Mavic Mektronic left the chat

@grahamaustin9085 3 года назад

@@lechprotean Not really a groupset since there are no gears (1 gear)

@garethwilliams4995 3 года назад

Just a question about cleat and pedal tension any tips I have never adjusted mine why is there adjustment?

@UbzUnclemax 3 года назад

#AskGCNTech Should the rollers of a chain move freely or be rather stiff? I've been using Squirt Lube for the last few months and have only cleaned the chain with warm, soapy water since then. However, I did degrease it today and noticed a new sound: the metal sound of freely and quickly rotating rollers when going over the chain with my fingers to check for grime leftovers. They always used to be rather stiff (wax friction?) and now they spin as nicely as new bearings.

@endianAphones 3 года назад

#AskGCNTech Many times when I take my wheel out the shift cable goes out of place in the right Ultegra shifter, and it's a PITA to put it back into place. Anything I might be doing wrong?

@rubaiyatu 3 года назад

@Matthew Ho: Electric Shifting is THE BEST THING EVER! I'm on eTap and Love It Love It Love It, I reckon you'll have a similar experience with Shimano's system. Do The "2"!!! Cheers!

@timothyzwitser7586 3 года назад

Rissotto balls with mungbean choco hempseed paste based on cocomilk. Throw some dates or vigs into the mix, add cinamon and your set. Throw in the fridge for at least a day.

@callumthorsen5474 3 года назад

Word on the saddle, make sure the clamp fits correctly into the rail, If not the slightest bump will jump it off and become loose. Seen it happen...

@adriangonzalez3802 3 года назад

Why the “cheap bike to super bike” is disarmed behind you? 😧

@Slacky84 3 года назад

I have a set of Mavic Cosmic Pro Carbon SL C wheels, is it possible to convert them to run tubeless? would a tubeless tyre safely seat on the rim?

@charlesmorrison8354 3 года назад

#AskGCNTech I have a Trek Emonda with Ultegra groupset & a Wahoo Kickr. Post-service (and bedding in a tune-up), my bike goes onto the kicker no issue. As soon as I take the bike outside for a ride the shifting is off. Putting it back on the Kickr has the same issue. Typically not being able to reach the top ring on my rear cassette. What am I doing wrong?

@tlkris 3 года назад

@/askgcntech what is faster\quicker, in general... A non-aero bike with at least 50mm deep section wheels? Or an aero bike, with a shallow wheels, like 32-35mm deep? Or, another example would be a Specialized Venge (or SL7 Tarmac) with a 32-35mm deep wheels versus an Aethos with a 50mm deep wheels?

@rubenderuiter1856 3 года назад

When I get out of the saddle, especially accelerating at low speeds, my rear wheel hits the break pads (I have direct mount breaks). I have carbon wheels which should be very stiff, but perhaps they aren't? Or should I adjust my technique somehow?

@endcensorship874 3 года назад

You guys need to explain how the UCI differentiates between what is and is not a cyclocorss bike.

@ryshort7255 3 года назад

Hi GCN, due to the way the outlets are set up in my apartment, my Kickr (and bike) are in pretty close proximity to my humidifier and I was wondering if there are potentially any negative consequences to doing this? Cheers. #AskGCNTech

@iancruz2304 3 года назад

Is it true that it may not be safe to use latex tubes on carbon rim brake wheels due to high temperature when braking? Thanks

@timc9619 3 года назад

#askgcntech Is there a way to identify which version of a Shimano GRX deraillure came with my new second hand gravel bike? Thanks

@aceworks7817 3 года назад

#Askgcntech hi Ollie I'm getting a race bike next year and was wondering what I should get and how should I go about a bike fit. I'm getting a specialized tarmac sl7 in a size 54cm. I'm currently riding a trek domane 4.3 in a 56cm. Thank you.

@lwittrock1 3 года назад

Good show!

@jwaimlelsi 11 месяцев назад

I have a 2011 Trek Madone 6.7 SSL H2 62 cm with Dura Ace and I'm in need of new or used shifters that I can't seem to find. Please recommend shifters that I can use. Thanks.

@ftwdubstepftw 3 года назад

Hi GCN, I recently bought new Challenge grifo pro 33mm tires for my bike with 622-13c wheels but I keep getting flats at the valve (5 already). I've ridden with Continental speed 35's on the same wheel for years and never had a problem. Both rim tape and rim look fine. What should I do? #AskGCNTech

@455LT1 3 года назад

I'm facing this dilemma as we speak. I'm leaning toward Di2 but it's SO expensive. You only live once though, right?

@BixbyConsequence 3 года назад

@R. Schowiada71 Amen. Can't see the point in swapping equipment whose durability is measured in decades, to durability measured in hours before battery goes flat.

@anotheryoutuber_ 3 года назад

you dont only live once!

@d.gwebster1109 3 года назад

It may be a bit of a luxury, but Di2 shifting is quicker, doesnt need adjusting after the intial set up, and never rubs no matter what gear I'm in. My old bike on the other hand, has mechanical and needs constant fettling to keep the gears happy. The front mech is an especially finicky piece of kit, but that may be due to the frame as much as anything else, but it wouldn't be an issue with electronic shifting. Also batteries only need charging every 2 - 3 months and with the wireless adaptor, my head unit tells me exactly when that is. The only down side is the beep that tells me I've run out of gears and I'm going to struggle up the rest of the hill.

@edelbirtpineda4055 3 года назад

Does the shimano tiagra 4700 front derailleur have a 34.9 clamp? Thank you for answering #AskGCNTech God bless youuuuu❤️

@stuartdryer1352 3 года назад

Di2 was the upgrade on my bike that I have liked the best. More than wheels.

@d.gwebster1109 3 года назад

Same here, I don't think I could go back. I also like the Di2 wireless adaptor, apart from when it beeps to tell me I've no more gears left.

@stuartdryer1352 3 года назад

@@d.gwebster1109 The other things that changed my cycling life the most for the better (It's not an upgrade) was to start using paraffin wax on my chain, and getting more compact drop bars. But Di2 is the biggest thing and it's for so many reasons both while riding, and also in terms of ease of maintenance. With thatcsaid, 105 and Ultegra mechanical are awesome, and a whole lot less $$. But if you can afford it, go with Ultegra Di2.

@everest0411 2 года назад

#AskGCNTECH I want to ask what will happen when I build a road bicycle wheel out if a fixie ? I know fixie wheel are designed for no break, but outside that ,what is the up side or down side or using a fixie aluminium rim and build it into a road bicycle wheel??

@paolocapozzi927 3 года назад

Tire clearance is only a part of the story for gravel bikes. Head tube angle (so trail), chain stay length, BB drop...those are all things that will affect the handling. A couple of centimeter of chainstay lenght makes a massive difference. As does one degree less of head angle. In addition to this gravel bikes tend to be more relaxed than road bike in their fit, which normally means larger stack and shorter reach. For example bikes like the OPEN U.P. despite being absolutely fantastic to ride, do not really allow you to have as much fun off road as with a proper gravel bike, because it has clearance for large tires, but the geometry is a bit too aggressive for gravel. In my opinion 435mm of chainstays, 71° of head angle and around 74° seat tube angle (depending on your fit) is the sweet spot for a fun gravel bike that is not slow on the road as well

@lextm119 3 года назад

As far as I'm aware, 4700 use 11 speed pull ratio, that's why it wouldn't work with other 10 speed components. And I've tried myself, 4700 rear derailleur does work with 11 speed bar end shifters on 11 speed cassette.

@the_rzh 3 года назад

#AskGCNTech - I have Dura Ace 7800 on my backup bike. The front shifter has developed an internal fault over time. shifting became unreliable and now it will not shift to the big ring at all. Can the internals be repaired?. Ebay prices are pretty high for used 7800 parts and I'm concerned I'd be buying a shifter that is just as worn out and about to fail.

@markanderson4171 3 года назад

#askgcntech When riding on wet roads the sealant in my tubeless tyres does seam to perform as well and takes longer to seal, if at all. Any tips?

@kelvinwibowo537 3 года назад

#AskGCNTech hello olie I want to buy a saddle for my new bike, Im wondering if adaptive saddles such as fizik adaptive or s works mirror will make a difference between some regular saddles. waiting for your answer thankss

@amilcaresada7778 3 года назад

@oli, unfortunately i was about to buy a new trek emonda slr carbon 2021 buy wahoo says it is not compatible with Kikr. since GCN has such good relationships with guys at whoo cam you investigate weather they think to issue a specific adaptor for the emonda? #askgcntech #askgcnhelp

@zrsgamboa 3 года назад

Aha, now we know how Si keeps winning in the TT vs roadbikes challenge... he's motorpacing!!!

@raphaelnierra3344 3 года назад

Hi! I change my chain last june and already used it with my worn out cassette for almost 500km+. This early december, I just bought a new set of cassette. How should should i ride it before it will be perfectly fitted because when i put a lot of power on the pedals the chain still kinda skips. #AskGCNTECH

@krishnaakkaram 3 года назад

#AskGCNTech, Hello Ollie, I got myself aa gravel this last summer and later realized I kinda like riding on the road. Though I can ride my gravel bike on the road, I am thinking of getting a road wheelset (Tyre & Wheel). Is there any resource where I can find what will fit on my bike and also do I also need to get a disc for this new road wheelset because I have disc brakes on my gravel bike.

@gaozilla5843 3 года назад

#askgcntech I just got a hold of a wheel-on trainer (kickr snap). I got a hold of a trainer specific tire as well, but was wondering if it’d be ok to use my current rear wheel for indoor riding. I wanted to get a dedicated rear wheel for the trainer, but the cheapest one at my local bike shop was $600! Should I be worried of the trainer wearing out my current wheel??

@mikelfernandez7353 3 года назад

Hello! is it possible to install a 10 speed front derailleur in a 11 speed di2 groupset?

@lovenottheworld5723 3 года назад

My nutrition method for long rides is to have protein and fat with a few carbs early in the morning and then survive on sugary drinks and water for the next few hours and then get more real food carbs if necessary. I could never get used to eating on the bike, only drinking.

@sidsangal7583 3 года назад

To the person whose saddle gets loose after a few miles: If your installation involves seat clamp 'ears', are you sure they are the right size? The channels cut into the inside of the ears are different sizes for different rails. I know of at least three different standards for saddle rail cross-sections - round, and two differently sized oval cross-sections.

@selinovaldes 3 года назад

My 2 year old Di2 Tarmac is in its second week at the shop as it keeps draining batteries overnight. My local shop has gone through various diagnostics with Shimano. Just calling Shimano has taken days each time and we’re no closer to solving the issue. So... no, I wouldn’t fit Di2 again. Anecdotally, Di2 feels wonderful when it works but when it failed it was catastrophic and resulted in "looks like you'll need to replace the entire $1200 group set that's no longer under warranty". I’ll be moving to SRAM on the next bike.

@steventhomason127 3 года назад

I have a De Rosa Idol 2020 but I need a new seat post clamp. Struggling to find one. Are the internal Seatpost clamps interchangeable between brands? Any advise??? #AskGCNTech

@christosl467 3 года назад

#askgcntech greetings from Greece. What makes someone choose Shimano over SRAM over any brand for their groupsets? Aren't all of them the same?

@tomodell3671 3 года назад

Di2 is hands down the logical choice if you can budget for it. I'd rather the peace of mind that my shifting is always going to be perfect for the small compromise of charging it once a week or so. If di2 was available in 105 I'd be all over if for my winter bike.

@paulroelsolon 3 года назад

I'm pretty sure ollie cracked up when he said brifters cus the video was cut. 🤣

@murphyflynn6471 3 года назад

#askgcntech my local bike shop upgraded my drivetrain to SRAM AXS 12 speed. However they failed to inform me before all was installed that my custom shortened SRAM Rival 10 speed cranks and chainrings are not compatible. Right now the front derailleur will not shift the chain up to the large chainring effectively leaving me with a 1x system. What is my best option to keep my custom cranks (147mm) or new short cranks very close to that length that will shift the 12 speed chain?

@LittleJulio. 3 года назад

I recently read certain Wahoo Kickr are not compatible with Canyon Ultimate with rim brakes [disc brake version still compatible] Any truth to this?

@ernestoechevers4741 3 года назад

I don't see myself going back to Di2 any time soon i had a horrible experience with Di2 when it works it is heaven but when it does not it is hell and an expensive hell so NO thanks...

@voiceofreason9780 3 года назад

What were the worst problems? (I'm thinking about upgrading to Di2)

@timothytanyael4080 3 года назад

#AskGCNTech Hey Ollie and Alex! My cleat bolts are seizing up and the more power I apply to unscrew it, my allen key seems to 'drill' the bolt and now i ended up disfiguring the hex shape and my allen key no longer has any grip. Ive got 2 questions. 1. Is there any tricks to unscrew the bolts at this point? 2. Ive managed to unscrew one of the bolts by force, but now the screw hole is broken and i cant seem to put the bolt back in, any suggestions on how to fix this? Thanks a bunch guys!

@mortense8858 3 года назад

Hi GCN. What’s your take on carbon repair? I’ve got my favorite bike frame (Scott Addict) ‘dented’ in a meetup with a car and then bought a Canyon Aeroad instead, but the frame is still in my garage screaming for a project. Is it worth it, and will the weight increase and strength decrease?

@appa609 Год назад

Do it if you know what you're doing. Every bike I own contains carbon I laid onto it.

@costasmandylor1565 3 года назад

#askgcntech good morning from America. Question: I have Shimano 6800 direct mount rim brakes, every time I remove my front wheel my brake calipers move to one side when re-installing the wheel. I have to then re-adjust the brakes for the calipers to be even and brake properly. Why does that keep happening? Is there a way to avoid this? Cheers.

@rimtnbiker 3 года назад

#AskGCNTech My road bike has a 80mm 6+ degree stem. If I increase the rise of the stem, do I also need to increase the stem length?

@LoscoeLad 3 года назад

Hey guys, great work as ever Can I fit integrated aero handlebars to a CAAD12, that doesn't do integrated cabling? I guess I could bodge it, and maybe fill the cable holes in the frame, or just wrap cables under the grip tape)and make them less aero!)?! Thanks #askgcn

@benedeknavratyil3084 3 года назад

#AskGCNTech Hi Ollie! I recently watched a dream bike build video, where they assembled Zakarin's beauty. At the end the bike was only 6.27 kilos!!! How is that possible? I mean, what do they do to avoid disqualification? Do they put some additional weighs in the seatpost? Thank you for your answer!!:))

@stug45 3 года назад

Noone has ever explained why the shifting performance is better with di2, it's just been stated. I assume it is because a downshift is pushed by the motor and not by the spring in the mech. Is it because it feels like a new cable?

@tccycling 3 года назад

#AskGCNTech I ride 800-900 miles per month. How often should I service my bottom bracket? My headset? I have a newer, ceramic threaded bottom bracket. Is it just a matter of removing the bearings and cleaning out the cups?

@lawrencesingleton2153 3 года назад

Firstly, good on you for that mileage! It all depends so much on the headset/bottom bracket type and the weather, type of riding etc. You could add this to the question if you want a better answer from them. Personally, I'm not bothered about maximising efficiency so I just replace the bearings when I feel a bit of play or a 'roughness' which is caused by pitting. In terms of servicing, old bikes will have bearing cages which run directly in the cups, you'll need to replace the balls or the whole ball and cage assembly, after a while the cups will need replacing too. Then came sealed cartridge bottom brackets, which aren't serviceable and you would need to replace the whole thing, but they are sealed and last much longer. A modern bike (apart from budget models with a square taper bb and/or threaded headset) should have sealed bearings which can just be replaced. You'll need a bearing puller and press, and they just pop out of the cups and you press the new ones in.

@tccycling 3 года назад

@@lawrencesingleton2153 thank you