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Outer, CNC machined aluminum bearing cups. Weighs only 94 g 2 sealed bearings Plastic inner casing for 68 mm bottom bracket housing. Inner diameter 22/24 mm Includes adaptor rings for 73-78 mm bottom bracket housing Compatible with SRAM (not original spare part)
Outer, CNC machined aluminum bearing cups. Weighs only 94 g 2 sealed bearings Plastic inner casing for 68 mm bottom bracket housing. Inner diameter 22/24 mm Includes adaptor rings for 73-78 mm bottom bracket housing Compatible with SRAM (not original spare part)