2021 PRO equipment thread

[borist]

I thought the issue with the Specialized teams was that Roval don't have a tubeless compatible rim.

Roval have been adament that the technology has too many compromises at this time, so they only spec the latest rims for clinchers. I think the teams still have access to some older tubular rims, but they would have to go to another company to get tubeless.

Definately seems to be working in other races, but in PR they are very much missing out.

[flying]

Moscon was on a slow leaking tubeless
I think most likely Continental’s new Grand Prix 5000 S TR
since they recently switched to these at WC's

In any case the white sealant was visible all over rear upper of bike towards the end

But at the same time
"Conti’s revamped tubeless tyre was used widely across the peloton at Paris-Roubaix, including by Colbrelli en route to winning the men’s race."

https://www.bikeradar.com/features/pro- ... ch-trends/

[Kjetil]

Always possible to slash a tubeless tire open enough so that the sealant comes short. P-R is also infamous for it's glass shards between the stones.

[AJS914]

Because according to the vittriol of Cycling News, Cycling Tips and the likes, most teams (the big ones, the ones that could contend) where on Continentals TR or Pirellis TLR. Why they didn't mentioned Bora or Quickstep is beyond me... Or should i stop considering them unbiased?? maybe the latter.

The last Cyclingtips podcast covered this. DQS started the race with clinchers and then most of their riders finished on tubulars (last years?) as replacements. They said that Bora used tubulars.

They speculated on whether this was simply a tactical mistake by DQS, as in, the clinchers had worked well all season, or whether there was any push by Specialized to use the new clincher Rovals. They thought the former was more likely. It's been 1.5 years since the last Roubaix and 20 years since the last wet Roubaix. There's little institutional memory in the teams on what to use in a wet roubaix.

This is an interesting turning point for cycling IMO. It was shown that a 32mm tubeless tire can roll fast and still go the distance at Roubaix. Lots of amateur riders are going straight for 30-32mm tires on modern wide rims which fit on modern disc brake road bikes.

I wonder if we ever have another wet Roubaix whether some team will come up with some insane setup that flattens anyone showing up with lesser tires - maybe a 32-34mm tire with more side tread (small knobbies?) to grip the cobbles and a smooth center to roll fast, sealant, and a foam liner so you can ride on a flat.

[AJS914]

Lots of closeups of bikes, tires, and wheels in this cyclingtips video:

https://youtu.be/vn0_wOGjEqc

[Raimundo]

Yep, sounds logical as to why they barely appeared on the main moves at PR, especially being Quickstep the strongest team on paper at the departure. I wonder why a big and classics experienced team like Quickstep didn't just played it safe like Bora and told Specialized to keep the tubed clinchers away from a wet PR.

Will give a listen to that cyclingTips podcast...

[eurostar]

Lots of amateur riders are going straight for 30-32mm tires on modern wide rims which fit on modern disc brake road bikes.

For what surface?

[Raimundo]

Lots of amateur riders are going straight for 30-32mm tires on modern wide rims which fit on modern disc brake road bikes.

For what surface?

My current winter wheelset ia a good example of this:
tubeless 30-32mm 53-57psi, flemish ardennes kind of parcours, great for attacking pave sectors and farm roads, and loads of traction on punchy cobbled hills like the Paterberg on a rainy day.

[AJS914]

I'm talking about road. A 28mm which measures 30-32mm installed is pretty much standard now on modern bikes. A lot of riders are sizing up to a 32mm like a GP5000.

[maquisard]

Agree, I am riding around on Specialized Roubaix 32mm tires at 60 psi.

Great for many road surfaces and still fast.

[pdlpsher1]

I'm on 32mm GP5K at 55psi. I look at my friend's 28mm GP5K and it looks tiny. Conti was smart to introduce the 30mm GP5K S TR. Perhaps the new 30mm will become the norm.

[jever98]

Agree, I am riding around on Specialized Roubaix 32mm tires at 60 psi.

Great for many road surfaces and still fast.

That's high! I'm 88kg and ride 25s (27 installed at) 58 / 4 bars

[jever98]

Agree, I am riding around on Specialized Roubaix 32mm tires at 60 psi.

Great for many road surfaces and still fast.

That's high! I'm 88kg and ride 25s (27 installed at) 58 / 4 bars

[jcrr]

Agree, I am riding around on Specialized Roubaix 32mm tires at 60 psi.

Great for many road surfaces and still fast.

That's high! I'm 88kg and ride 25s (27 installed at) 58 / 4 bars

That's low! I'm 57kg and ride Roubaix 32 (installed measure 36 width) @ 85psi. And before the judgement starts, yes, I have ridden them starting at 50-55psi, and they roll faster at higher psi for me, no loss of comfort or grip.

[TobinHatesYou]

27mm WAM at 58psi is quite low for 60kg, nevermind 88kg. Using the AXS calculator, it wants an 88kg rider at 70f/75r if using reinforced casings, 82f/87r if using thin casings. Silca's calculator wants 83f/85r for a moderate pace group ride on worn pavement. Higher for faster rides and new pavement.