Problem Solvers Eccentric Bottom Bracket Shim - 57mm MFPN=ID7489-14 Ceramic coating for increased drive

Ceramic coating for increased drive chain protection

OneTap levers make loading your bikes easy and fun

The perfect fit for shafts with a 9mm diameter tip

Get stamina feature insights while you ride when paired with your compatible sensors so you can keep an eye on how much longer you can really push it

matching rider weights from 110-270 lbs

Problem Solvers Eccentric Bottom Bracket Shim - 57mm MFPN=ID7489-14 Ceramic coating for increased driveThese handy Problem Solvers Eccentric Bottom Bracket Shims allow you to fit your existing Eccentric Bottom Bracket into BB shells with inner diameters of 55mm or 57mm. Anodized black 6061 Aluminum Size 57Mm