Bike Forums - View Single Post - Best tire pressure for best rolling resistance

04-09-14 | 09:34 AM

#30

merlinextraligh

pan y agua

Joined: Aug 2005

Posts: 31,809

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From: Jacksonville

Bikes: Willier Zero 7; Merlin Extralight; Calfee Dragonfly tandem, Calfee Adventure tandem; Cervelo P2; Motebecane Ti Fly 29er; Motebecanne Phantom Cross; Schwinn Paramount Track bike

Quote:

Originally Posted by J_Boogie

I followed the recommendation of an online tire pressure calculator for a group ride last night. It said run 70 and 108 psi front and rear on 23c tires. I usually run 120 on both. It was SLOW.

Data? Or did it just feel slow?

Rock hard tires feel fast, but what makes them feel fast is actually taking energy away from going forward.

Admittedly 70psi front sounds awfully low, and likely was slower. But 108psi could be faster than 120psi depending on a range of factors.

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