Mountain Bike Sealed Bottom Bracket 68mm Steel Axis with Screw for Square Hole Crank116mm4.57in

Feature: 1. Bottom bracket sealing bearing, lubrication without abnormal noise, suitable for square hole crank. 2. Upgraded quality, precise thread, integrated with bike frame after installation, long?term stable transmission. 3. Square hole bearing anti?rust treatment, heat treatment axis high?strength load?bearing 1.5 tons, transmission efficiency increased by 50percent . 4. Bottom bracket shell length is about 68mm2.7in, suitable for mountain bike, folding and road bike. 5. Bearing grooves type sealing design is stable and durable, this product is fit for square hole crank. Specification: Item Type: Bike Bottom Bracket Material: Steel Color: As Picture Shown Bottom Bracket Shell Length: Approx. 68mm2.7in . Package List: 1 x Bike Bottom Bracket2 x ScrewBottom bracket sealing bearing, lubrication without abnormal noise, suitable for square hole crank. Upgraded quality, precise thread, integrated with bike frame after installation, long?term stable transmission. Square hole bearing anti?rust treatment, heat treatment axis high?strength load?bearing 1.5 tons, transmission efficiency increased by 50percent . Bottom bracket shell length is about 68mm2.7in, suitable for mountain bike, folding and road bike. Bearing grooves type sealing design is stable and durable, this product is fit for square hole crank.