Upgraded BBThe T47 and the BSA, they now have stainless steel bearing for better reliability.Compatible only with INGRID cranksets. Note: BSA and T47 supplied with tool. INGRID Bottom Bracket$133.00PriceType*SelectAdd to CartTech Specs Diameter: 30 mm Bearings: ISB Sport Bearings ENDURANCE BEARINGS SERIES (BSA and T47) Weight: 97 g (BSA) – 91 g (T47) Cranksets Compatibility: Compatible only with INGRID cranksets Manual: BB_Manual_EN.pdf