Omalley21145
10-03-02, 05:01 PM
hey i have 700cc x 25 wheels and i want to make them smaller for racing, like 700 x 18 or 20. Do i need too buy new wheels or do i just buy a 700x20 or 18 tire and that will fit on the wheel?
Road Cycling - 700cc
Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.View Full Version : 700cc
RacerX
10-03-02, 05:04 PM
just new 700c tires. cc's are a measurment of volume not distance.
I would recommend 23c tires, they roll faster than 20c.
I would recommend 23c tires, they roll faster than 20c.
pokey
10-03-02, 06:09 PM
Only if everything is equal and the pressure is the same.Narrower often use higher pressure,and are more aero.
D*Alex
10-04-02, 05:56 AM
What is the width of your rims? You don't want to use extremely narrow tyres on a wider rim-stones and such will scrape the braking surface of the rim if you do. Besides, unless you weigh less than 100 lbs (45 kg), you don't want anything narrower than a 21mm tyre. Trust me.
WorldIRC
10-04-02, 02:45 PM
i rode on a 250km (7-8hour) trip on my 700x20 and i was fine.