Mountain Bike Bottom Bracket Wave Washer Adpater

• Made of steel material, high strength and anti-rust,wear-resistant and durable .
• After Installing The Crank Washer, The Crank Ring Can Be Stabilized Without Shaking From Side To Side .
• Can change the inner diameter of bottom bracket to make bottom bracket fit for crank .
• Suitable for various brands of bottom brackets , fit 24mm or 30mm bike crank .
• A useful for DIY or repair your bike,suitable for various bikes .

5 PIeces BIke Bottom Bracket Wave Washers