Function:
1. Made of high quality aluminum alloy material. Durable and rust-resistant.
2. Protect the crank from scratches, water and dust.
3. Double washers compatible with normal hollow sprockets
4. Tightens, seals and waterproofs.
5. Suitable for mountain bikes, road bikes, etc.
Specifications:
Material: Aluminum alloy
Color: Black
Quantity: 2pcs
Suitable Diameter: 22-24mm / 0.87-0.94in (Approx.)
Package Includes:
1 x Crank type dustproof cover.
1 x Extra waterproof ring