Bicycle Mechanics - chain length
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.
10-15-03, 02:31 PM
i am changing my ultegra cassette from a 11-25 to 12-27- will i need to lengthen my chain or still be able to use my old one (with very little wear)????
You shouldn't need to lengthen it, but get a new chain anyway. And measure it out correctly :)
10-16-03, 05:28 PM
You may need a longer chain. By changing to a larger rear cog the overall circumferance of your drivetrain is larger. This means you may need a longer chain. Shift into the big/big combination. Is you chain taught or is there some looseness to it? If its taught you need to go longer.....
Just remember you only need a link or 2 longer, any more than that may give un-wanted slack in the small/small
Powered by vBulletin® Version 4.1.12 Copyright © 2014 vBulletin Solutions, Inc. All rights reserved.