for those who don't yet know them, we have 3 main sources for tire performance
- Aerocoach who also regularly test their aero: https://www.aero-coach.co.uk/time-trial ... tance-data
- BRR with the known limitation of not really measuring vibration losses (so always show higher pressure = lower RR): https://www.bicyclerollingresistance.com/
- Cycle et Forme who built a protocol that is nicely calibrated to the two others https://www.cyclesetforme.fr/
- Wheel Energy is used by some manufacturers, and do include the impedance losses but they don't share data themselves https://wheelenergy.com/bicycles/
Aerocoach recently released a test on the not so popular anymore tubulars, really track oriented, but interesting to see how fast latest tubularsare compared to the TT only TLR... and they are fast. Not all are usable on the road but the Veloflex Record is usable as a race-day only (similar to a Corsa Speed that is even lighter 225/205g).
https://www.aero-coach.co.uk/tubular-tr ... resistance
Long story short, @iso pressure they are faster than the VeloFlex Record Clincher and would be <20w of RR
Tires and Tubublars Rolling resistance
Moderator: robbosmans
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The spirit of this board is to compile and organize wheels and tires related discussions.
If a new wheel tech is released, (say for example, TPU tubes, a brand new tire, or a new rim standard), feel free to start the discussion in the popular "Road". Your topic will eventually be moved here!
The spirit of this board is to compile and organize wheels and tires related discussions.
If a new wheel tech is released, (say for example, TPU tubes, a brand new tire, or a new rim standard), feel free to start the discussion in the popular "Road". Your topic will eventually be moved here!
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Thanks for the post, I realised it's taken a while to get the data published and people have been waiting a while! Apologies about that.
We haven't published the 90psi track tubular data as a graph (the track data above is all 150psi), but some relevant values for comparison at 90psi/45kph are:
Vittoria Pista Oro 23mm 0.001869 / 19.5w
Vittoria Pista Speed 23mm 0.001881 / 19.6w
Veloflex Record 23mm 0.002495 / 26.0w
Continental Sonderklasse 0.003209 / 33.4w
We haven't published the 90psi track tubular data as a graph (the track data above is all 150psi), but some relevant values for comparison at 90psi/45kph are:
Vittoria Pista Oro 23mm 0.001869 / 19.5w
Vittoria Pista Speed 23mm 0.001881 / 19.6w
Veloflex Record 23mm 0.002495 / 26.0w
Continental Sonderklasse 0.003209 / 33.4w
AeroCoach UK
www.aero-coach.co.uk
www.aero-coach.co.uk
At higher pressures everything gets a bit closer, yeah. I don't have the 25mm Record 90psi data yet I'm afraid but will be part of an upcoming batch, as well as Corsa Speeds at track/road pressures and also the main road tubular data later. The 25mm Records are absolutely massive when inflated BTW (26.8mm), I think they'd make a very comfortable/fast/nice road tyre but wouldn't be practical as a front tyre on a track wheel that you want to be aerodynamic.
AeroCoach UK
www.aero-coach.co.uk
www.aero-coach.co.uk