Bikone DCTech BSA - Ceramic Bearings - SRAM DUB

Bikone DCTech BSA bottom bracket (⌀34.8mm - Width 68 to 73mm) threaded with ceramic bearings - SRAM DUB standard (⌀29mm)

The Bikone DCTech BSA bottom bracket - Ceramic Bearings - SRAM DUB is designed for demanding cyclists looking for smooth performance and durability, whether on the road or on the trail. Thanks to Dual Cup technology (DC Tech) and high-quality ceramic bearings, this model guarantees quiet, efficient, and durable pedaling in all conditions.

Compatibility

This bottom bracket is compatible with 68-73mm wide BSA threaded frames (road and off-road) and Sram Dub cranksets (29mm axle). It requires a standard BSA tool for assembly and disassembly. For Sram Dub Wide cranksets, the use of a specific adapter (Dub Wide Adaptor Kit, sold separately) is essential.

Box contents

DCTech BSA Ceramic bottom bracket for Sram Dub cranksets.

Spacers supplied:

• 1 x 2 mm spacer
• 1 x 2.5 mm spacer
• 2 x 4.5 mm spacers
• 2 x 1mm O-rings

For Dub Wide cranksets, a Dub Wide adapter is required (sold separately).

Technical characteristics

• Crankset diameter: 29 mm (Sram Dub)
• Frame width: 68 – 73 mm
• Frame diameter: BSA thread
• Compatibility: threaded road and off-road frame
• Weight: 94 g

Technology and design

The system is based on Dual Cup technology, with two precision-machined aluminum cups that perfectly align the bearings on either side of the frame. This design creates a rigid central junction, eliminating unwanted movement and noise.

The housing is equipped with hybrid ceramic bearings (ABEC5 / P5 – 2RS), ensuring exceptional smoothness and excellent wear resistance. The cups are made of 7075 aluminum, an aeronautical alloy reinforced by T6 treatment for increased durability.

The housing is fully sealed, with axial seals on the bearings and total protection against water and dust infiltration. Its weight has been reduced thanks to an optimization of the number of pins, without compromising robustness.

Guarantee

• Lifetime warranty on cups
• 3-year warranty on bearings