Square Type Bottom Bracket Durable Long Time Use Bicycle Bottom Bracket 120mm Bottom Bracket 68mm

Strong and durable hex socket waterproof screws made of material. The sealed bottom bracket is easy to install and operate, and its lubricity makes it easier to participate in bicycle races. Made of metal material, high strength, strong and durable. The variable speed bicycle accessory is equipped with waterproof screws, and the smooth seat axis greatly improves wear resistance and makes it less likely to rust. Suitable for mountain bikes, variable speed bikes, etc. An important bicycle accessory. function: 1. Made of socket waterproof screw material, strong and durable. 2. The variable speed bicycle accessories are equipped with waterproof screws, and the bearing axis has significantly improved 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 to participate in bicycle races. 4. Made of metal material, high strength, strong and durable. 5. Suitable for mountain bikes, variable speed bikes, etc. This is an important bicycle accessory. specification: Condition: 100% new Item type: bottom bracket Material: carbon steel Package list: 1x bottom bracket 2x screws