Cyclocross - BB Recommendation
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.
10-21-10, 01:05 AM
Well, after about 6 solid races, 4 of which were extremely muddy and wet, my MegaExo BB went out (drive side). I pulled the BB out and pulled the bearing cover off and found a cartridge full of mud, water, and sand. Seals must be crap on these FSAs. I don't think I want to bother with attempting to clean and re-grease the bearing cartridge only to be doing this in a couple of weeks again...
Any recommendations for an affordable--sub $100--external BB that has decent seals and take the rigors of cross? I'm thinking of getting the Ultegra 6700 BB; any experience with these?
BTW, I roll with a FSA Gossamer crankset.
The shimano units are nice and inexpensive. Don't get a RaceFace, whatever you do.
My MegaExo lasted much longer than that -- about 5000 miles and 18 races, many very muddy -- but when it went out, I replaced it with a Dura-Ace 7900, which oddly was cheaper than the FSA.
I think the Shimanos are only compatible with non-carbon FSA cranks, FWIW.
10-21-10, 10:08 AM
I am having the same issues with my FSA unit as well. No matter what level of maintanence you do it always come back around to this.
10-21-10, 01:48 PM
are you using a pressure washer? the seals on some of the BB's are pretty flimsy plastic. mine are doing fine with no major issues. just avoid spraying them directly with a pressure washer.
10-21-10, 02:48 PM
I just use a garden hose to wash off the bike. No pressure washing. Unfortunately there's no way really avoiding hosing the BB itself in order to clean off what had to be a inch worth of mud--perhaps I need a lesson in bike washing. You're right about the seals being flimsy. I wasn't very impressed when I was taking the seals out to inspect the bearings.
I've decided to go for the 7900 BB, so we'll see how this one fairs
10-21-10, 02:53 PM
I killed an FSA external BB on my MTB w/o much effort. Popped the drive-side seal, and there was virtually no grease remaining, and the bearing barely rolled/turned.
Find an inexpensive Shimano BB and toss the FSA unit.
Powered by vBulletin® Version 4.1.12 Copyright © 2013 vBulletin Solutions, Inc. All rights reserved.