Mountain Bike Reviews Forum banner
1 - 2 of 2 Posts

·
Registered
Joined
·
1,410 Posts
its a bottom bracket where the shell is big enough to house an insert that holds the normal bottom bracket off-center so you can rotate it to change chain tension in singlespeed applications that use vertical drop-outs
 
1 - 2 of 2 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top