68mm Sealed Bottom Bracket Square Taper Metal Bearing for Mountain Bike with Screws

Feature: 1. Hexagon socket water‑proof screws, made of high‑grade materials, strong and durable. 2. Variable‑speed bicycle riding accessories are equipped with waterproof screws, and the bearing axis is smooth, which greatly improves the wear resistance and is not easy to rust. 3. The sealed bottom bracket is easy to install and operate, and its lubricity makes it easier for you to participate in bicycle races. 4. Made of high‑quality metal materials, high strength, strong and durable. 5. Suitable for mountain bikes, variable speed bikes, etc. It is an important bicycle accessory. Specification: Item Type: Bottom Bracket Material: Carbon Steel. Package List: 1 x Bottom Bracket2 x Screw