Bike Bottom Bracket High Strength Lightweight Waterproof Central Shaft for Mountain Cycling

Feature: 1. Aluminum Alloy Shell: The bike central shaft adopts aluminum alloy shell, which makes you can smoothly step the bike. And the central shaft maintains high strength. 2. Integral Sealed Steel Bearing: The bottom bracket uses an integral sealed bearing to retain the lubricant in the bearing, and has good dust proof and waterproof effect. 3. Strong Stability: The lateral stability of the bike press in central shaft is strengthened, which is not easy to loosen, and it will not produce too much noise. 4. Accurate Processing: This has been accurate processed to increase its service life, and thecan be used for mountain bike and road bike, and is suitable for harsh riding environment. 5. Lightweight: The bicycl crankset central shaft is light in weight and will not add extra burden to your bike, so the central shaft will not affect the riding speed. Specification: Item Type: Bike central shaft Material: Aluminum alloy, sealed bearing, nylon Weight: Approx. 134g 4.7oz Inner Diameter: 30mm 1.2in Outer Diameter: 45mm 1.77in Applicable Frame Pipe Diameter: 46mm 1.8in Compatible Frame 5 Way Width: 68mm 2.7in, 73mm 2.9in. Package List: 1 x Bike Bottom Bracket