Parts 8.3 BB30 Shimano/Sram Unisex Adult Bottom Bracket, Black, 22-24

• The BB30 SHIMANO bottom bracket has sealed ring bearings.
• This case offers smooth rotation and solid strength.
• Compatible with Shimano 24/24mm diameter or Sram 22/24
• Fits BB30 type frames with 42mm internal diameter and 73mm width

Bottom bracket with high-quality, waterproof ring bearings, allowing smooth rotation and durability. Compatible with Shimano crankset with 24/24 mm diameter or 22/24 mm Sram (thanks to adapter), for mounting on BB30 frames, 42 mm inner diameter and 73 mm width.