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Bottom Bracket Blues(6 posts)

Bottom Bracket BluesMXL02
Oct 30, 2002 9:14 AM
Ok, here's the deal. I have an old steel bike that came with Campy Daytona 10 sp. Bought a new EPX carbon frame, switched out the components, and now decided I don't like the EPX (that's another story). I can't afford to pay to have it switched out again, so this has become my winter project.
The first issue is the BB. When my LBS built up the EPX, he said the old Daytona BB was shot, and he had a Record Track BB that would fit, so he replace it with that. According to the Campy site, the cups are not sealed on the track BB, so it should not be used on the road. So...a new Daytona BB is only $20...or should I just use the Track BB and use something like Teflon tape to seal the cups?
re: Bottom Bracket BluesRusty Coggs
Oct 30, 2002 10:21 AM
A short description in the QBP catalogue says the track BB is a 'sealed' cartridge,but for track use only.Scratching my head on that one. 'Sealed' is realtive, and the seal issue may be where the spindle enters the cartridge. Back in the old days of cup and cone,many of them had no seals there either,but that did give rise to more frequent maintenace issues.
What Rusty saidKerry
Oct 30, 2002 5:04 PM
It's hard to imagine a BB that "should not be used on the road." Are the bearings somehow grossly exposed? I doubt it. If the Campy track BB is loose bearings or bearings in a cage, then you should be able to go 3-5K miles before needing an overhaul (just like Campy BBs were for decades before sealed BBs came out). No need for any sealing systems.
re: Bottom Bracket BluesLeroy
Oct 30, 2002 5:11 PM
I passed on a 111mm track bb not knowing whether the 'seal' issue would be a hassle. A record bb sounds exotic until you're overhauling it all the time. Just on theory, my thinking went in the same direction as RC's post and I took the safe route and installed an ac-h. You ought to use teflon tape anyway, but semi-engineered solutions usually don't hold up. Plus, you're looking at a pretty good price difference. The daytona/centaur ac-h for $20 turned out fine for me. I've read here and there on these forums whines about them, but in my experience they work ok.
campagnolo record/chorus road hubs and bb'sscorpionking
Nov 2, 2002 7:28 AM
Do campagnolo record and chorus hubs and bottom brackets all have sealed cartridge bearings? Wouldn't sealed bearings help if riding in lots of wet weather?
campagnolo record/chorus road hubs and bb'scurlybike
Nov 2, 2002 7:42 AM
Record hubs had sealed cart bearings 1 year, 97, I think. The bb's are sealed carts. That said, sealed cartridge bearings are not absolutely waterproof, especially if submerged. I have replaced many that were rusted up after normal cycling use.