Wheels Manufacturing Bottom Bracket Spacer

Wheels Manufacturing Bottom Bracket Spacer are used for fine tuning freewheel and cassette placement or adjusting chainline on frames with B.S.A external type bottom bracket cups.
• Fits between frame and drive-side cup (cup must have lip) to adjust chainline or crank clearance
Inner Diameter: 35.0mm
Outer Diameter: 40.7mm
Material: Aluminum
Finish: Polished