Bike Bottom Bracket Sealed Bearing Lightweight Noiseless Press Fit BB for Mountain Road Bikes

Feature: 1. Metal Frame: This bike bottom bracket is made of aluminum alloy frame, easy to pedal, reduce noise, light weight while maintaining strength. 2. Sealed Steel Bearing: Bike BB adopts sealed bearing, keeping the lubricant in the bearings, dustproof and waterproof, suitable for harsh cycling environment 3. Anti Loosening: High strength aluminum alloy bike press fit bottom bracket, strengthen the side stability, not easy to loosen, refuse to noise. 4. High Strength: This metal bike bottom bracket has high strength and high hardness, not easy to deformation. Press in design can improve rigidity. 5. Small And Portable: Aluminum bike BB is light weight, small size, easy to install and use. Suitable for mountain bikes and road bikes for cycling enthusiasts. Specification: Item Type: Bike Bottom Bracket Material: Aluminum Alloy, Sealed Bearing, Nylon Inner Diameter: Approx. 30mm 1.18in Outer Diameter: Approx. 43mm 1.69in Applicable Frame Tube Diameter: T47 Compatible Frame Five Way Width: 68 73mm 2.7 2.9in. Package List: 1 x Bike Bottom Bracket2 x Washers Note: Manual measurement, please allow 0.04‑0.12in error.