As a mountain biker first I loved this video. Please can you make a video on why roadies are a bit dull and antisocial compared to mountain bikers? During lockdown I have spent loads of time on my road bike and found most don't wave back or have much banter/getting stoked compared to mountain bikers. As peter sagan says 'why so serious? '. Sagan is clearly a mtber first and races road for the money.
Thous were exactly my emotions. Like yeah i bet they are expensive. Oh he says the magic word "affordable" lets see im exited now. 1800 quit... Hell no.
For me, Si has become the flagship presenter. A great blend of experience and charm (which the others also have) allied to fluency and articulate delivery. It really sounds spontaneous but considered, which is a hard ask. And of course a lovely sense of not taking himself too seriously either. Great to watch. Bravo.
i could never afford them (or need them) but i certainly love learning the technology from you guys (and just fun videos). sure a lot different than when i was serious in the 1970s, but i am looking at going carbon now, and study a lot to help me decide what to look for... so thanks very much. 63 and still love to bike
Running tubeless 30mm @ 65 psi. My old bike was tubed 25mm @ 85 psi. Loving the change, it's perfect for the bad roads and light gravel with no sacrifice of speed. Still take the old bike out for cruises on the smooth stuff.
I see a lot of people running low tire pressure. They quite often have a basket and squeaky chain. I always think they like a good workout because I generally only see them in good weather and on-road. They lift their bikes over curbs too.
@SEAL CYCLE well.. Si literally gave an explanation of the fringe cases in which 50 watts could be gained over an improper setup. They are not claiming that the tires will give you 50 watts all the time for free.
@@chanito_nyc only one wheel, the new 303 S is manufactured in our own Taiwan facility where all SRAM carbon stuff comes from. Main reason: To be closer to the bike brands that produce there, not so much for cutting cost.
Uau. Big big Zipps technological upgrade. I purchuased 2 years ago 302 and its very good. Ok, i know isnt advenced like the 303 or 404, but the quality its there. Its a fact, zipp made very very good wheels, and, when you see gcn videos about new zipp wheels, you realized you made the perfect choice. Thanks GCN and Zipp. 🥇🏆
ZIpp should spend less on their BS department... I mean marketing department, so they can price their wheels more competitively and therefore wont need to make up so much BS. It's an upward spiral.
Nice Vid. Had the same thoughts a few years back. So decided to run some Token Roubx G33 - 25.3 hookless internal rim (31mm ext & 33mm deep). Booted them with Hutchinson Performance 11storm 28mm tubeless. Suffice to say, this combo does everything that the new Zipps does, plus they're a pleasure to mount, just using a track pump! Bliss on a bike🚴💨🏄
I ride 27x1-1/4" gumwall Kenda 35 tires on steel rims. Cost 15$ per tire, $40 per wheel. Funny that every year the fastest tire keeps getting closer to the same tire width that I've been riding since I got the bike in 1980. :)
Its 2020 and they have come up with wide wheels with a smooth transition from the tire to the rim. This is ground breaking!!! how they think of these thing is incredible.
I just mounted 28 mm tyres on my 2005 Vision bike. I had to do a little sanding on the rear brake to stop it from rubbing. But man are they a pleasure to ride! The new Zipps look really cool but with my level of riding I could never defend spending that kind of money. Back in 2005 I paid about 1100 Euro for it... But still I love it!
Just moved to 30 mmm Victoria Corsa G2’s on my 52cm rim braked Emonda. Started off on 23’s, then 25’s for some time, then 28’s for the last couple of years with latex tubes. 30mm wide now seems to be the sweetest ride for me! Better handling downhill on sketchy tarmac and more comfortable all round. Im sold.
zipp = 75% marketing 25% product... 50 watts, pfff! That’s a joke! This video look like a long and boring Zipp infopub and it is a shame! GCN loose independance and credibility!
ZIpp should spend less on their BS department... I mean marketing department, so they can price their wheels more competitively and therefore wont need to make up so much BS. It's an upward spiral.
I'm a 90kg fatty and have been riding 28mm tyres for some time now. And I only put 60 front and 70 rear of the psi in them!! Never had a pinch flat during that time as well. I have been riding for more than 40 years so have lots of experience. Tried 19mm up to 54mm tyres on all sorts of bikes. Tried high and low pressures. Finally settled on 28mm with low pressure as it gives me the best ride quality/comfort for the watts on my road bike. PS. Shame some of the comments here are so negative!
Probably great if you want to ride wide road tyres (at those max pressures 30/32 would be the narrowest I'd be happy with) but I still want my 90psi 25s for going fast.
@@Zeben84 I actually disagree with that. GCN has many sponsors but their opinions are based on their true feelings. Remember when Shimano sponsored them the Ultegra and Dura-ace groupsets? They reviewed it according to how they truly felt.
Ikr. Road bikes are almost always ridden on smooth (relatively) bitchemen, not roads made out of what I'm assuming must be debris from a construction site for this to be any benefit.
@@lecrab5658 Well, that's a different case for me. I ride in a bad road most of the time since smooth aspalt are almost dont exist here. It's a plus for people like me but yea, the price is not for my wallet but it's a good inovation nevertheless.
Just today I finished my ride with hands and legs numb from the road vibrations. Makes me want to invest in 28mm tires+frame that supports them. The overall road condition in Finland has decreased massively over the last five years.
Enjoy climbing in the alps or 1-2hours climb at 5 bars with flexy wheels, fat tires, aero weighty frame and ticking disk brakes ... Not everyone wants to ride flat at 45kph on gravel/bad roads ...
As a fan of big tyres, low pressures and gravel bikes, I have to say you’re right. I had a CAAD12 which was harsh and not my cup of tea for most riding. But go somewhere hilly and i wanted that bike with hard 25mm tyres.
I’m with you. 28s swaying and bellowing up a steep climb, making that digging noise, make for a horrible time. Tubeless or tubed, I’m running a firm tire.
Climbing on 28mm tires with 5bars is perfectly fine if you’re not over 80kg. You actually lose more watts by running a too high pressure then when you’re running a bit too low. I run 25 (measures 27 on my rims) at around 5,5 bars. Super comfy and super fast. But I guess you don’t wanna take those free gains since you don’t believe because you’ve always ridden with 8 bars.
Seems like you’ve missed the point of the video. Lower pressure = more speed on everyday, bumpy roads. If it was pristine asphalt then sure, go narrower with high pressure and it would be faster.
@@sammillward7551 I think you've heard what they wanted you to hear, but not what they actually said. You need to be riding truly awful roads for those lower pressures to be faster. That's why they spend a lot of time talking about Belgian cobbles - not a surface type I ever want to ride. And just look at the rolling road they did their testing on - again a truly awful surface. UK roads can be bad, but they're not that bad.
Sam Millward what if your everyday roads are not not bumpy? In srea in wchich im living you can ride ten’s of km of smooth tarmac. I tested 28c tyres not my world sorry
I wrote to an exercise physiologist nearly 30 years ago suggesting that the sum of bumps was a lot of wasted energy because of the vertical movement of the bike. You're turning energy for forward speed into pointless height gain, that you instantly lose. All those 5mm add up.
If you've got tyres with 5mm of flex, and you have, then it isn't an issue that needs fixing with £2000 worth of wheels that have 'compliance' built in. That compliance,whatever the actual number associated with it is, is costing you watts with every pedal stroke on any surface too smooth to make full use of it. Add a full set of suspension to your bike with the same level of compliance as these wheels and you'd be bemoaning the lost watts immediately.
I live in Flanders, so I have to go over quite some cubbles...and when I know there are some on the route I ride with 5.0 bar at the front and 5.2 bar at the rear. My weight is ca. 74kg and I use 25mm tyres. I don't feel a lot of difference on the smooth surfaces, but I can't go a lot higher on heavier cubbles without feeling uncomfortable. With those low pressures cubbles are fun.
I run 28 mm tyres at 90 psi. Yes I have been converted to wider and lower pressure tyres by GCN and advice from my local bike shop. I got onto the tyre pressure calculator and will be testing 51 psi front and 63 psi rear on the 30 km round trip that I do with my mates my target is 30 km ave speed. I have been doing 29 km ave consistently,see how it goes
careful. Low pressure is only viable when your rim internal width is wide too. Otherwise the support from the rim is not going to be enough and you'll feel squishy. That being said, my WR56 with 23mm internal width, my 28c only need 65-70psi so far.
I have the same bike/tire combo. I have been very happy except for the tires. The sidewalls leak air terribly. Confirmed it by putting the wheel in water. So many little holes. I have just ordered a pair of Gravelking slicks plus in a 38mm. Hoping they hold air better 🤞
I agree this super wide rim/ super low pressure thing is only applicable when you constantly have to ride on really very bad roads. In my "real world" a 25mm tire on a more aerodynamic rim with slightly higher pressure is definitely faster
Nice idea! Quarq have a product called the 'Tyre Whizz' that sends live tyre pressure data to your head unit - but being able to automatically adjust it whilst riding would be awesome!
Trek Madone 9, 45mm rims laced with CK hubs. Running 28mm 5000's tubeless, 60 front, 70 rear, 70 kg. However, if I don't keep on top of regular pressure checks then they'll drop quite a bit. I've ridden them down to roughly 45, yes they were a little draggy, a little noisy, and a bit sqwermy.... But they still worked well! 👍Been trying a little less pressure on a regular basis... Tubeless IS THE WAY FORWARD! 👍
Interesting as usual and topical for me ATM! Crashed on some gravel in corner on Sunday, Buckinghamshire roads! Unconscious & grade 3 dislocation of collarbone (ACJ). New ”Management” rules for future riding ... Wider Tyres!! ... So looking to get 28's into my Look 795 with lower pressures now too (tubeless!?). So thanks Si/GCN.
Love some tire nerd'ery. I'm running 28mm tubeless and been going with 80 psi @74kg body weight.. I thought that was quite low but now I'm having a rethink.
Well they are less complicated in construction and hence easier to make, that's why they are cheaper. Not because they improved anything in production.
@@edrcozonoking SRAM quality is absolutely abhorrent. I've had my Sram etap rear derailleur arrive DOA. A $500 derailleur that they don't even bother testing before leaving the factory... Their hydraulic brakes also stop working in any sustained temperature above 100 degrees. You cannot run sram hydraulic mtb brakes in Phoenix. Their only solution is to warranty them over and over and over again.
I currently am running on Specialized Roubaix Pro on my 2016 Felt V85. They're 25x28 which I max inflate to 95+ psi both front and rear. I cycle on both road and trail. The Roubaix are smooth and fast however, they get a little slippy slidy on the trail without a single flat in nearly 4 years. I'm thinking of getting the Roubaix Pro 2bliss in a 30x32 and ditching the tubes. My hope is to increase trail traction while maintaining the shock dampening and fast rolling qualities of these incredibly versatile tires...possibly with lower tire pressure.
Great content as always Si. 👍🏼 I ride zipp 404 Firecrests and love them. I don't know about anyone else, but I really do not like the new Zipp logo/decals 😔. (and Si, please ask for an aether, that helmet is hideous 🙈)
I'm getting a lot of adverts that just sit on a black screen and don't play on your videos in the past couple of weeks. Can't skip them and it takes dozens of reloads to get to an advert that plays. It's not happening on other channels with adverts.
Are those 28mm tires on a Canyon Aeroad CF SLX frame? The company claims that 25 mm is the maximum you can fit there. Good to know that it is possible. Keep up the good work, lads!
I think the new continental tires are rated to be used on hookless rims as long as you keep the tire pressure below 73 PSI. That's what I remember reading on their website - having something to do with the standard that's been adopted. If someone knows more or has an opinion on this I'd appreciate the feedback.
What I'm wondering though is that new (Continental GP5000 STR) what category on the Zipp PSI Calculator would it be for the tyre choice? It's thinner than the previous GP5000TL I had but only in the casing not the treads and it's 2x110TPI instead of 3x60TPI. Does that mean it's a "Double Layer" since it's 2x110, Regular or Thin??? :/
Zipp is nothing more than a massive marketing machine. They just happen to apply their tactics to bicycle wheels but they are all about marketing, not about performance. Over the years I have had several sets of Zipp wheels and they have all been aweful. I've had three cracked rims and two cracked hubshells. I weight 130 lbs and ride on smooth to very smooth S. Florida roads so it is not due to abuse or hard use. Compare this it a set of Mavic Ksyrium SLs that I have over 100K miles on and have done nothing to them but regrease the bearings and replace the freehub bushing a few times. I run these with 23mm tires at 110 PSI and based on my own data, I have found absolutely no difference in average speed compared to my Zipp 303 firecrest.
Thanks for the info, Robert. I often dreamed about getting Zipp wheels, but it's good to know that my 195 lbs and bunny hopping up curbs are NOT compatible with the wheelset whatsoever. No more temptation for zipp.
32-35mm is ideal for a real world, I run 23mm Conti Gp5000 clincher on my cyclocross bike and I can ride anywhere from buttery smooth tarmac to light gravel roads. thinking about to throw on 25mm panaracer GK SS and forget about riding conditions forever)
Reducing tire pressure with increased width is crucial. What is the point of inflating a 28mm tire to 95 PSI? I use this simple rule to get the optimal tire pressure on a 28mm: inflate to the PSI that corresponds to your weight in kg. So if you weigh 75kg, inflate to 75PSI. This rule gives a slightly higher pressure than what Si would recommend, but where I live, I need a bit more pressure to protect the rims from potholes and I like to bunny hop over speed bumps.
Finally, an affordable Zipp Wheelset. In Canada this should only cost about $3100 CAD plus taxes or $3500 out the door , maybe $3800 CAD with tires. Then again, that's only 3 times what my bike itself cost. They will look fantastic on the back of my Porsche.
I'm afraid, GCN, that you are rapidly turning into an advertising outlet for your sponsors and partners. There is no attempt here at challenging Zipp's claims, and this video is nothing but a shameless 12 minute long plug for the company and their latest marketing exercise sorry I mean product. You are also losing your grip on reality if you categorise £1800 for a pair of wheels as "affordable". You ask about tyre size.....I run 25s on my regular road bike, and 28s on my touring bike.
@@orlandostuart5805 They don't. They put a little text for a few seconds in the bottom corner saying "includes paid promotion"........which is very much not the same as saying "this is an advertisement".
So, how many years do you roadies need now to realize, that tyre inserts might be worth a shot? ;) As a hardtail mountainbiker I tried out an insert in the back wheel. The results blew me and my brother away. We drove on an unpaved road together a few weeks back and the comfort I gained from 90 grams of foam in the wheel was unexpected and confounding. I still can't believe how much of a difference it makes. My hardtail all of a sudden had a better small bump complience than my brothers 140mm full suspension bike with significantly less air pressure compared to my bike. I asked my brother to ride my bike on that road (didn't tell him anything) and after 30 metres he asked (quite astounded) what I did change on my bike?. I told him to take a guess. He went off the bike and tried to squeeze my tyres to see if they were running low on pressure, but nope I ran about 40 psi (which is unreasonably high for a mtb). Then I told him that I installed a tyre insert. He knew what I was talking about, but he couldn't believe the impact it had on the dampening. Neither could I. I woul Highly encourage you ti give it a try. For road tyres you might want cut the inset to a appropriate width, but it should be well worth the weight gain. Unless you ride on perfect roads.
Saves watts on rough surfaces... but then, that costs watts on smooth surfaces. Sounds like a great feature if you want to turn your road bike into an off-road bike. In the 'real world' that Zipp refers to, road bikes spend >95% of their time on roads that are well enough maintained so that pot-holes can be avoided and simply adjusting tyre pressure will deal with varying surface conditions. The 'short cut through the park' may benefit from wheels with built-in suspension, but the long drag up the mountain B road is going to be a lot longer and draggier as a result.
Bontrager pioneered the big treadmill test during development of their road tires. They also had a gravel road carbon wheel with 25mm width. Aeolus Pro 3v TLR. Oh but Zipp has one? wow. I run my Trek Domane SL5 on the stock 21mm wide alloy wheels with 38mm rear/35mm front Hutchinson Overide tires, tubeless with Orange Seal, at 40 psi on my daily commute and also on real gravel. But you can't be a hero unless you ride a zipp or Hed. right?
