13 of 13 customers found this review helpful.
I have been running a 70034 front and 70033 rear for the Cross Crusade race series. They do their namesake proud! I am using tubless-specific rims and running the tires tubeless with moderate pressures - between 32 and 40 psi depending on course conditions. I have had good to great performance in all the races I've used them in with the exception of one very slick day when I ran 40 psi in both tires. Too much bouncing and only fair traction. With just a little lower pressure, the tires perform exceptionally. I was previously racing on Challenge Griffo's with latex tubes and the tubeless setup wtih the Clements is definately an improvement, especially in really muddy conditions. The tires seem to clear mud very well. The tread pattern has good, predictible traction and seems to be relatively soft, aiding traction on the variety of surfaces typically encountered in racing (grass, mud, dusty dirt, asphalt, etc). Because of the softer compound, my guess is that these will be a single race-season tire if I use them for a significant amount of training rides as well as races. Lastly, I would credit my Stan's rims with the great tubeless performance I've had. Other rim designs might not work as well for running these tires tubeless.
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