Problem Solvers Eccentric Bottom Bracket Shell 54mm diameter 66mm width Silver Challenge Tire 6 Color Black Material Aluminum

6 Color Black Material Aluminum Length 70 Bar Clamp Diameter (mm) 31

125 35mm Schrader Valve

Internally contoured and relieved 6061-T6 aluminum for minimized weight and maximized strength

Improved ergonomics make the 2-finger Carbotecture lever blade comfortable to use

Bolt Mount Diameter 8 Frame Mount Width 25

Problem Solvers Eccentric Bottom Bracket Shell 54mm diameter 66mm width Silver Challenge Tire 6 Color Black Material AluminumProblem Solvers Eccentric Bottom Bracket Shell 54mm diameter 66mm width Silver. The Eccentric Bottom Bracket Shell can be welded into a bicycle frame specifically designed to accept an Eccentric Bottom Bracket. For the utmost in drive train versatility build your frame around this Shell. Problem solved! 54mm inside diameter 59mm outside diameter 66mm standard width 68mm total length Compatible with Eccentric Bottom Brackets Chromoly 4130 Steel