Description: - Made of aluminum alloy material, high strength and anti-rust,wear-resistant and durable. - The adapter inner diameter is 22mm,outer diameter is 24mm. - You can change the inner diameter of bottom bracket to make bottom for crank. - Suitable for various brands of bottom brackets. - A useful tackle for DIY or repair your bike,suitable for various bikes.Specification: - Material: Aluminum Alloy - Size: - Adapter: outer diameter-23.95mm/0.94inch, inner diameter-21.93mm/0.86inch - Washer: inner diameter 24mm/0.94inch, 30mm/1.2inchPackage Includes:1 Piece Conversion Adapteror1 Piece Washer
