Bicycle Mechanics - Time to replace the rear hub?
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.
For the past few months I've noticed that when I apply a lot of torque to the pedals, I hear a clunk and a sudden and temporary loss of resistance in the pedals. It happens on any one of the cassette cogs, though usually it's in the larger cogs because I'm starting off from a stop. It doesn't happen all the time, but it is getting more frequent. I know it's either the chain slipping or the freehub, and I am definitely leaning towards the freehub as the culprit. I have a new chain and the cassette teeth look okay, the only shady part of the drivetrain is the Taiwanese rear hub.
Does this sound like a typical failure mode of a dying freehub? If so, has anyone got any recommendations for a good sturdy 9-speed compatible hub? I'd prefer it to be silent as well, if possible. Thanks!
01-03-07, 01:56 PM
It's the freehub that's going baloney, so you basically need to replace it. Weakening springs is a typical failure mode, especially if you ride in lots of sticky stuff or below -20 C.
Shimano and Shimano-compatible freehubs are sold separately and relatively easy to change. Last time I changed one, it was 15 or 20 $, installed. Unless you have other problems with the hub or cash to burn, replacing the whole hub (or worst, the entire wheel) is pointless).
Recommendation: Shimano, basically. They are not perfectly silent, but if you compare a Shimano freehub to a DT Hugi, Chris King or Phil Wood, you'll consider the Shimano very quiet indeed.
Other recommendation : learn to pedal most of the time. The freehub clicks only when you coast.
As I don't have the correct tools for this job, I guess I'll drop by the bike shop sometime soon and have them replace the freehub... hopefully the one that's on there now is compatible with Shimano freehubs. I also hope the dang thing comes off without too much effort... who knows if the threads were properly greased before being installed!
Thanks for the help, Michel!
Powered by vBulletin® Version 4.1.12 Copyright © 2014 vBulletin Solutions, Inc. All rights reserved.