Bike Bottom Bracket Integral Sealed Steel Bearing Aluminum Alloy BB38630 Press Bottom Bracket For Mountain Bike Road

Feature: 1. Aluminum Alloy Frame: Slippery pedaling, reduce noise, light weight while maintaining strength. 2. Integral Sealed Steel Bearings: Extend the service life, integral sealed, keep the lubricant in the bearing, good dustproof and waterproof effect, suitable for harsh riding environment. 3. Sturdy And Stable: High strength aluminum alloy, strengthens lateral stability, is not easy to loosen, and rejects abnormal noise. 4. Ease of Use: Adjust the chain center line distance of the crank ring for customer convenience. 5. Accurate Machining: Increased service life, high strength center shaft sealing performance is good. Specification: Item Type: Bike Bottom Bracket Product Material: Aluminum, Sealed Bearing, Nylon Product Size: Approx. Outer Diameter: 49mm 1.9in Inner Diameter: 30mm 1.2in Compatible Frame Bottom Bracket Width: 86.5mm 3.4in. Package List: 1 x Bike Bottom Bracket