Bikone DCTech BB30-73a asymmetric - Ceramic bearings - Shimano

Bikone DCTech BB30-73a bottom bracket (⌀42mm - Width 73mm) Asymmetrical Pressfit with ceramic bearings - Shimano standard (⌀24mm)

The Bikone DCTech BB30-73a asymmetric bottom bracket with ceramic bearings Shimano is designed to offer maximum efficiency and long-lasting reliability on road frames with the BB30a standard. It is aimed at cyclists seeking efficient, smooth, and quiet power transmission, whether for intensive training or competition.

Thanks to Dual Cup Technology (DC Tech), the two aluminum cups align perfectly to form a rigid unit, eliminating play, noise, and energy loss. High-precision ceramic hybrid bearings ensure extremely smooth rotation and excellent durability, even under heavy loads.

Box contents

• BB30-73a Ceramic bottom bracket for Shimano cranksets (24 mm axle)

Compatibility and assembly

• Bottom bracket axle diameter: 24 mm ( Shimano )
• 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 for a rigid central core, without noise or unwanted movement
• ABEC5/P5 – 2RS ceramic hybrid bearings for superior smoothness and increased wear resistance
• 6061 aircraft-grade aluminum cups with T6 heat treatment for high rigidity and excellent corrosion resistance
• Complete sealing thanks to axial seals and full protection of all surfaces

Spare parts compatibility

• 30407 Ceramic Bearing
• PF46, PF30, T47, EVO, BBright and T45 adapters for Shimano

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