The Sram DUB bottom bracket series has a simple role: to connect your cranks and protect the drivetrain from the power applied to the chain for smooth operation and long-lasting performance. To achieve this precise objective, Sram has designed the DUB axle to be the real link in the whole system. An oversized axle that works with all standard bottom brackets. For greater compatibility with cranks. For better weather protection. For long-lasting performance. For greater strength, smoothness and simplicity.Product advantages : An oversized axle that works with all standard bottom brackets. Easy installation. Optional outer and inner cups to suit your bike's characteristics. Sealed cartridge bearings for stainless steel and ceramic versions.Details : Compatibility: T47A (Road and Road Wide) 77 mm. Crankset with 28.99 mm axle, standard Sram DUB. Cup material: aluminum. Bearing type: standard (stainless steel). Model: BB-DUB-T47-A1. Order number: 00.6418.033.003.
