Popvcly Mountain Bike Bicycle Bb Shaft Ceramic Cylinder Shaft Screw-In Center Shaft Thread Center Shaft Bottom Bracket Mtb Hollow Stem

Specification: Material: Aluminum alloy Inner diameter: 24mm Tooth pattern: BC1.37-24T Color: Black Weight: About 97g Package Includes: 1pc* Center Shaft Note: 1.Due to the different monitor and light effects the actual color of the item might be slightly different from the color showed in the pictures. 2.The color of the product is subject to the color received please allow 2-4cm measuring deviation due to manual measurement thank you for your understanding!