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tyre pressure(5 posts)

tyre pressurescruffyduncan
Nov 29, 2002 3:33 AM
what tyre pressures are best for cross bikes?, how much should it vary for different conditions?

re: tyre pressureMJ
Nov 29, 2002 9:10 AM
I run a high pressure for my Mich sprints - but that's cause they're terrible for flats - punctures and pinches

most tyres have a specified range - the lower the pressure the more the traction but the greater the rolling resistance - higher the pressure = less traction & less rolling resistance

for me - dry and hard = high pressure; muddy and slippery (w/o the Sprints) = low pressure

you can always change mid-ride if you want
re: tyre pressureatpjunkie
Nov 29, 2002 1:39 PM
depends on your size, riding style and terrain. lower pressure will provide better traction but greater chance of pinch flatting. Bigger Riders and rougher terrain require more pressure.
re: tyre pressuretihipscrew
Nov 29, 2002 2:09 PM
The true joy of tubulars is that you really can't pinch flat them. I've become used to feeling (rarely) my rim bottom out on impacts. On hard terrain with extended jackhammer washboard sections, use low pressure and float on by yr rivals, cadillac style. Of course, if there's a lot of road in the course, you'll be a little slower there. I'm about 160 lbs and rode my last race at ~38 psi w/Tufo LPS, and it was completely amazing. I think a teammate went significantly lower than that. The set up is also almost a pound lighter than clincher set up, all rotating weight. With the sealant, they are endlessly thorn proof (a big factor in CO). Sounds too good to be true, right?
re: tyre pressureatpjunkie
Nov 29, 2002 2:49 PM
I've been thinking of demoing the tubular clincher by Tufo for precisely that reason, though I hate the feeling of bottoming to my rim