Crupi B.O.B. Sealed External Bb Black 28131

Precision sealed bearings, precision fit with no more plastic dust seals and Precision performance! A much upgraded bottom bracket that features machined tool slots so the tool will not scratch your BB, modified low friction alloy seals with less drag and the lightest weight external bottom bracket offered today resulting in a Precision ride

• Machined tool slots so the tool will not scratch your BB
• Modified low friction alloy seals with less drag
• Arguably the lightest weight external bottom bracket offered today
• Compatible with all 24mm race cranks designed to be used with external BB's