Bikone DCTech PF30-73a asymmetric - Ceramic bearings - SRAM DUB

Bikone DCTech PF30-73a bottom bracket (⌀46mm - Width 73mm) Asymmetric Pressfit with ceramic bearings - SRAM DUB standard (⌀29mm)

The Bikone DCTech PF30-73a asymmetric bottom bracket with ceramic bearings SRAM DUB is designed to deliver optimal performance and maximum reliability, even under the most demanding conditions. Intended for cyclists seeking high performance, it combines precise mechanical design with hybrid ceramic bearings to ensure smooth, consistent, and long-lasting rotation.

Dual Cup Technology (DC Tech) ensures perfect alignment of the bearings on each side of the case, eliminating unwanted noise and micro-movements, for efficient and quiet power transmission.

Box contents

• PF30-73a Ceramic bottom bracket for SRAM DUB cranksets (29mm axle)

Compatibility and assembly

• Bottom bracket axle diameter: SRAM DUB 29 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 and eliminating any play or noise
• ABEC5/P5 hybrid ceramic bearings – 2RS, offering excellent smoothness and very high wear resistance
• 6061 aircraft-grade aluminum cups with T6 heat treatment, guaranteeing rigidity, 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 SRAM DUB

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