Bike Bottom Bracket is made of high-quality carbon steel, which is sturdy and durable, well-made.
Size: 68x110.5mm/68x113mm/68x118mm/68x120mm/68x122.5mm for choose.
Fits square-taper cranksets. Can be used to install and maintain mountain bikes, road bikes, etc.
CNC precision seal thread, finely crafted. Seal thread protects against dirt, mud and water, provide smooth operation and no noise during long-term cycling.