First Components Bottom Bracket One-Piece Kit
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First Components Bottom Bracket One-Piece Conversion Kit.
- Includes spindle, bearing rings, bottom bracket cups, nuts, and lockrings.
- Conversion Fitment: Square Tapered
- Brand: First Components
- Size: 51.5x128mm
- Uses: Perfect for single speed or fixed gear conversions using vintage road bikes with one-piece cranks. Converts existing bottom bracket to square tapered fitment.
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