REF#: 111470
Alloy Bottom Bracket Set American 21A 19mm Kit Black.
- Shell: 68mm
- Spindle Type: 19mm
- Cup Type: Press Fit 51mm
- Interface: American
- Bearings: Sealed 41mm
- Material: Alloy
- Color: Black
- Converts American style 68mm B.B to Fit 3-piece 19mm spindle crank
- Brand: Alta
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