Bikone DCTech PF30-73a asymmetric - Ceramic bearings - Shimano

Bikone DCTech PF30-73a bottom bracket (⌀46mm - Width 73mm) Asymmetric Pressfit with ceramic bearings - Shimano standard (⌀24mm)

The Shimano Bikone DCTech PF30-73a asymmetric bottom bracket with ceramic bearings is designed for maximum performance and exceptional long-term reliability. Intended for demanding cyclists, it combines precision mechanical design with hybrid ceramic bearings to ensure smooth, efficient, and durable rotation, even under heavy use.

Thanks to Dual Cup Technology (DC Tech), this housing ensures perfect bearing alignment, eliminating unwanted noise and micro-movements, for constant and silent power transmission.

Box contents

• PF30-73a Ceramic bottom bracket for Shimano cranksets (24 mm axle)

Compatibility and assembly

• Bottom bracket axle diameter: Shimano 24 mm
• Frame bottom bracket width: 73 mm
• Internal frame diameter: 46 mm
• Standard: PF30-73a
• Frame type: Pressfit
• Compatible with road bikes

Technology and design

• Dual Cup Technology: two aluminum cups ensuring perfect bearing alignment, eliminating any play and noise.
• ABEC5/P5 hybrid ceramic bearings – 2RS, offering excellent smoothness and increased wear resistance
• Cups made of aircraft-grade 6061 aluminum, with T6 heat treatment for optimal durability and 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

• Specialized Diverge Carbon (2019)
• Specialized Epic Hardtrail (2018)
• Niner RLT 9 RDO (2019–2024)
• Niner MCR 9 RDO (2020)
• Niner AIR 9 RDO (2022)
• Niner RKT 9 RDO (2020)
• Cannondale SuperSix EVO Gen 2 / Gen 3 (2018–2022)
• Cannondale SuperSlice (2018–2020)

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