Your Eccentric Bottom Bracket one-stop shop for all the info you need, including a unique Eccentric BB with chain tensioning and BB height adjustment demo.
The Bushnell Eccentric Bottom Bracket is a drivetrain tensioning adaptor for singlespeed and tandem bikes. And now Problem Solvers is the.
Eccentric bottom bracket (EBB), for PF30 or BB30 frames. Convert your frame to a single-speed or fixed-gear setup with these simple to use bottom brackets.