PREMIUM MATERIAL: The crankset with qualified aluminum alloy material, solid and .
DESIGN: Separate rubber gasket, spring inside, prevent water and dust, super waterproof.
LONG SERVICE TIME: This product adopts special technology, good quality with a long life span. .
EASY TO INSTALL: Smooth rotation, easy installation and . Applicable for Integrative Crankset, Prowwheel, Integrative Crankset, Sunrace, and Hollow Crankset etc. If Only the diameter of the cylinder in hollow crankset is about 24mm.
Great CYCLING PARTS: The bottom bracket is a great accessory for cycling enthusiasts, you can send it for your friends.