Join Date: Oct 2007
Location: Waterloo, ONT
Bikes: Road: Trek 1.5 (2007). Mountain: Santa Cruz Chameleon (2008). Beater: Peugeot Recorde du Monde (1850)
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I ride with a set of Schwalbe Racing Ralphs. Amazing tires. Practically no rolling resistance on pavement (or on the trail), but incredible grip. The only thing that limits me from climbing the super steep slopes is not the tires slipping, but my strength. My lowest gear ratio is 32-34, which is pretty low... so that gives you an idea of the grip they have.
Great tires at a ridiculous cost. That's the only issue you'll have with 'em. 80$ a pop at my lbs.
i don't think they go up to 75psi, but as i said, there's no rolling resistance on the road.