Bicycle Bottom Bracket Aluminum Alloy One Piece Bike Bottom Bracket Metal Bottom Bracket for Bike Modification

Features:
Made of high intensity aluminum alloy, solid and durable in use._
Easy to install, R stands for right side, L stands for left side._
Fine workmanship and clear thread, different parts connects closely._
Accurate bearing, assure that the center of the circle is consistent when turning._
Compact size and lightweight, easy to carry and store, convenient to use._
Suitable for the thread of 1.37'' with an inner diameter of 24mm(0.9in)._

Specifications:
Material: Aluminum Alloy_
Color: Black/Red/Colorful (optional)
Suitable for: Frame Five-Way 68-73mm (2.7-2.9in)
Item Size: 97 * 44 * 44mm / 3.8 * 1.7 * 1.7in_
Item Weight: 96g / 3.4oz_

Package List:_
1 * Bicycle Bottom Bracket_