Bike Bottom Bracket Mountain Bike Aluminum Alloy Hollow Integral Bottom Bracket Bicycle Crankset Bearing for Bottom Bracket-Black-

Feature: 1.?Bottom Bracket Size?The length of the bottom bracket of the bicycle is about 99.1 mm, the height is about 68 mm, and the inner diameter is about 24 mm. It is highly adaptable and easy to use. 2.?Improves Wear Resistance?Bearing ceramic bottom bracket improves wear resistance, not easy to rust, and its lubricity makes you more relaxed and labor?saving in cycling race. 3.?High Quality Material?Bike bottom bracket is made of high-quality aluminum alloy, wear-resistant and durable, high strength and long service life. 4.?Output More Power?The threaded system can protect frame, output more power, it is better than the normal structure of the bottom bracket. 5.?Easy Installation?Bike bottom bracket rotates smoothly and is easy to install and operate. It can be replaced with simple tools. It is an excellent accessory for cycling enthusiasts. Specification: Item Type: Bicycle Bottom Bracket Material: Aluminum Alloy Color: As Pictures Shown  Length: Approx. 99.1mm/3.9in Height: Approx. 68mm/2.7in Inner Diameter: Approx. 24 mm/0.9in Package List: 1 x Bottom Bracket 2 x Accessories