Bike Forums - View Single Post - Lightweight tubes?

02-25-11 | 10:12 AM

#36

merlinextraligh

pan y agua

Joined: Aug 2005

Posts: 31,812

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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 kabex

I don't get the obsession with tubulars.

Latex tubes can save 5w @ each wheel, so that's 10 watt total savings if you use latex tubes compared to butyl (this was "scientifically" tested, it can vary).

Also, there's some very nice clincher tyres that have extremely low rolling resistance.

10 watts is significant. For an average sized rider with an FTP of 320 watts, a 10 watt savings is worth 39 seconds in a 40 k time trial. That is easily the difference between winning, and out of the money.

Also, it takes a lot of training to increase your FTP 10 watts.

That said, Latex tubes, in a very low rolling resistance clincher is likely the lowest rolling resistance option available.

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