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Y'all are saying low rolling resistance ... it's quite a bit higher than I thought it'd be. At similar tire drop, the GP 4000s II 25mm is ~13w at typical 80psi, while the Bon Jon is ~21w at typical 45psi. That's a huge 16 watt total difference.
First, why? Tread thickness is identical. As for sidewall thickness, the GP is .55mm; the Bon Jon is .6mm. Pretty close. There are faster tires than the GP like the Pro One tubeless that have an even thicker sidewall @ .9mm. What's holding Compass back? Rubber compound?
The main question of course is whether the difference in suspension losses on average pavement is enough to negate the hysteretic loss. There's no question the Bon Jons would be faster on gravel due to ability to run a lower pressure, but at what road quality do road racing tires overtake?
Last edited by andrewsuzuki; 03-31-2018 at 06:32 PM.
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