The inner diameter is 22mm, outer diameter is 24mm
You can change the inner diameter of bottom bracket to make bottom bracket fit for crank
The adapter ring adopts quality aluminium alloy material, high strength and anti-rust, wear-resistant and durable
Suitable for various brands of bottom brackets. use in combination with the standard bottom bracket for your chosen frame Useful tackle for DIY or repair your bike.
GUARANTEE: If you are not satisfied with our product received, you can apply for unconditional return and refund within 180 days. In terms of any problem of this product, you can send emails to us at any time. We will reply you as soon.