Mountain Bike Chain Wheel Bottom Bracket Thread Integrative Crankset Bearings gray (Red)

Features: This product adopts special technology, good quality with a long life span. Separate rubber gasket, spring inside, prevent water and dust, super waterproof. Smooth rotation, easy installation and operation. Applicable for Integrative crankset, i f Only the Diameter of the cylinder in hollow crankset is about 24mm. Qualified aluminum alloy material, solid and durable. Great accessory for cycling enthusiasts. Specifications: Conditions: 100percent Brand New and High Quality Material: Aluminum Alloy + Nylon Plastic Color: Black, Blue, Red, Gold (optional) Suitable for Bottom Bracket Shell is 6873mm2.62.8 High Precision Sealing Bearing Inside Applicable: If Only the Diameter of the cylinder in hollow crankset is about 24mm. Packag