Eccentric Bottom Bracket?
- Thread starter SOil
- Start date
Cannondale makes one of their Chase bikes with an eccentric BB for single speed use.
edit: I guess I could comment on non-DJ EBB use. I do own a SS XC bike that sees some jumping, and I've never had a problem with the EBB slipping. Only thing I'd mention is the constant creaking that develops every few weeks which is only solved by removing the whole EBB and cleaning and regreasing everything. Current system uses a wedge EBB. My next bike to replace this one will use set screws to hold the EBB in place. In all, I think the EBB is a good system, but requires regular maintenence.
I have no experiance with EBBs and jumpers. My jumper has a regular euro style BB, and I use a tensioner to make it SS. When I replace it, I will probably go the route of sliding dropouts.
edit: I guess I could comment on non-DJ EBB use. I do own a SS XC bike that sees some jumping, and I've never had a problem with the EBB slipping. Only thing I'd mention is the constant creaking that develops every few weeks which is only solved by removing the whole EBB and cleaning and regreasing everything. Current system uses a wedge EBB. My next bike to replace this one will use set screws to hold the EBB in place. In all, I think the EBB is a good system, but requires regular maintenence.
I have no experiance with EBBs and jumpers. My jumper has a regular euro style BB, and I use a tensioner to make it SS. When I replace it, I will probably go the route of sliding dropouts.
Good question as EBB will allow for BB height adjustability as well as the CS length. Can it handle street and park abuse? IDK. I know Felt's DJ complete has an EBB. Maybe post something on mtbr.com's singlespeed forum. There seem to be a lot of EBB users there.
purely guesstimation here:
i really doubt an EBB is gonna handle abuse as well as a normal bb. reading the posts from folks having issues with them on XC forums makes me suspect that they will have a tough time with real hard riding. i realize that some people run EBBs with no problems and an EBB bike could prolly handle occaisional jumping, but for a dedicated jumper go with horizontal drop outs and a bolt on axle.
i really doubt an EBB is gonna handle abuse as well as a normal bb. reading the posts from folks having issues with them on XC forums makes me suspect that they will have a tough time with real hard riding. i realize that some people run EBBs with no problems and an EBB bike could prolly handle occaisional jumping, but for a dedicated jumper go with horizontal drop outs and a bolt on axle.
peter6061 wrap a layer of teflon plumpers tape around the threads of your ebb, make sure you wrap it so that when it is threaded back in it doesnt back off, and that should solve your creaking problem.
There are no threads on my EBB. It simply is held in the shell of the frame by two wedges that compress against the inside of the frame when tightened against one another. Sort of like an old 'quill' stem from back in the day. I have thought about teflon tape around the shell, but the frame's being replaced by a set screw version EBB in the coming weeks anyway, so I'll probably just clean it and sell/store it.
sorry I meant the actual bottom bracket threads...didnt specify well enough, like you said you can also run some tape around the outside of the ebb also. After reading what I wrote I sounded like a moron who has no idea what he is talking about....lol