Bikone DCTech BB30-73a asymmetric - Steel bearings - SRAM DUB

Bikone DCTech BB30-73a bottom bracket (⌀42mm - Width 73mm) Asymmetric Pressfit with steel bearings - SRAM DUB standard (⌀29mm)

The Bikone DCTech BB30-73a asymmetric bottom bracket with steel bearings and SRAM DUB compatibility is designed to deliver precise, quiet, and durable power transfer on road frames with the BB30a standard. It's ideal for demanding cyclists seeking optimal performance, whether in competition or on long, intense rides.

Thanks to Dual Cup Technology (DC Tech), the two aluminum cups create a perfectly aligned assembly, eliminating play, creaking, and loss of efficiency. Combined with high-precision Chronium steel bearings, this bottom bracket ensures smooth and consistent rotation, even under heavy load.

Box contents

• DCTech BB30-73a bottom bracket for SRAM DUB cranksets (29mm axle)

Compatibility and assembly

• Bottom bracket axle diameter: 29 mm ( SRAM DUB)
• Frame bottom bracket width: 73 mm
• Internal frame diameter: 42 mm
• Standard: BB30a
• Frame type: Pressfit

Technology and design

• Dual Cup Technology: two perfectly aligned aluminum cups create a rigid central core, free from noise and unwanted movement.
• Chromium steel bearings ABEC5 / P5 – 2RS for excellent smoothness and long service life
• 6061 aircraft-grade aluminum cups with T6 heat treatment for high rigidity and increased corrosion resistance
• Complete sealing thanks to axial seals and full surface protection

Spare parts compatibility

• 30407 steel bearing
• PF46, PF30, T47, EVO, BBright and T45 adapters for SRAM DUB

Compatible bicycles

• Cannondale Synapse (2018 to 2021)
• Cannondale CAAD13 (2019 to 2022)
• Cannondale SystemSix (2018 to 2021)

It is recommended to check the compatibility between your frame and this bottom bracket before purchasing.

Guarantee

• Lifetime warranty on toilet bowls
• 3-year warranty on bearings