- Machined AL6061 alloy construction
- Center sleeve for use with Revolvr outboard bottom brackets
- Converts 68/73mm outboard bottom bracket to a 100mm or 120mm fat bike model
- Seals and protects the bearings from harmful contaminants
- Center sleeve only - Revolvr outboard bottom brackets sold separately
Length: 100mm, 120mm
Cup Material: AL6061