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 bracket fit 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/1.2inch

Package Includes:

1 Piece Conversion Adapter
or
1 Piece Washer