Description: This Square Tapered Bottom Bracket sealed bearing BB made of carbon steel bearing material- high strength with high loading bearing. Sealed cartridge and dustproof hex screws provides water resistance and prevents dust for great performance Carbon steel bearing reduces abrasion, vibration and makes maintain easier and integrated can protects the frame, more power output Featuring super-accurate bearings and precise threads for smooth operation and improved durability Suitable for 68mm frame shell and please use professional BB tool for installing and replacing Specification: Frame Width: 34.5mm Length: 110.5mm/4.35inch 116mm/4.57inch 118mm/4.65inch 120mm/4.72inch 122.5mm/4.82inch 126mm/4.96inch 127.5mm/5.02inch Package Includes: 1 Piece Bike Bottom Bracket
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