- Prestine External Bottom Bracket - English Thread BC 1.37" X 24tpi .
- Suits 68/73mm with shims. Suits Sram GXP 24/22mm Crank Sets.
- Alloy Anodised Cups with Plastic Centre Sleeve and 2 x O-rings, wave washer included.
- Double Sealed Cartridge Bearings (24/22mm Shaft) - Weight 100 Grams excluding spacers.
- Made in Taiwan.
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