BB91DUB Bike Bottom Bracket Integral Sealed Bearing Aluminum Alloy Press Bottom Bracket for Cycling

Feature: 1. Aluminum Alloy Frame: This bike bearing bottom bracket adopts aluminum alloy frame, provide slippery pedaling, reduce noise, light weight while maintaining strength. 2. Integral Sealing: The integral sealed bearing can extend its service life and keep lubricant in the bearing, dustproof and waterproof, suitable for harsh riding situation. 3. High Strength: Made of aluminum alloy, which is high strength and durable. And the lateral stability is strengthened, not easy to loosen, reject abnormal noise. 4. Accurate Machining: The high strength central shaft is accuracy machined, with exquisite workmanship, long service life and excellent sealing performance. 5. Parameters: Inner Diameter is 29mm, outer Diameter is 44mm. Applicable frame pipe Diameter is 1.37 teeth pattern. Compatible frame bottom bracket width is 68mm 73mm. Specification: Item Type: Bike Bottom Bracket Material: Aluminum alloy, sealed bearing, nylon Gross Weight: 104g 3.7oz Inner Diameter: 29mm 1.1in Outer Diameter: 44mm 1.7in Applicable Frame Diameter: 1.37 tooth pattern Compatible Frame Bottom Bracket Width: 68mm 2.7in, 73mm 2.9in. Package List: 1 x Bike Bottom Bracket2 x Gasket