Bikone DCTech BB86-92 Oversized - Steel Bearings - BB30

Bikone DCTech BB86-92 (⌀41.05mm - Width 86.5 to 92mm) Pressfit Oversized Bottom Bracket with Steel Bearings - BB30 (⌀30mm) Compatible

The Bikone DCTech BB86-92 Oversized Bottom Bracket - Steel Bearings - BB30 was designed to solve a common problem on Pressfit frames: the gradual widening of the bottom bracket housing. To ensure a secure and play-free fit, Bikone offers this model with oversized cups of 0.05 mm.

This design helps extend the life of your frame while ensuring you can continue to pedal without constraint, whether on the road or off-road.

Compatibility

This bottom bracket is designed exclusively for frames with a wider bottom bracket housing over time. It fits cranksets with a 30mm axle and Pressfit frames with a width between 86.5mm and 92mm, with an internal diameter of 41.05mm. For optimal compatibility, road cranksets should be mounted on road frames, and mountain bike cranksets on mountain bike frames.

Box contents

• 1 DCTech BB86-92 Oversized bottom bracket for BB30 (30mm) cranksets

This case comes without spacers.

Technical characteristics

• Crank diameter: 30 mm
• Frame width: from 86.5 mm to 92 mm
• Frame diameter: 41.05 mm (widened frame)
• Compatibility: Widened Pressfit frame
• Weight: 83 g

Technology and design

Dual Cup technology ensures the two aluminum cups are perfectly aligned, forming a rigid junction in the center. This system eliminates unwanted noise and unwanted movement. This housing incorporates high-precision chrome steel bearings (ABEC5 / P5 – 2RS) for long-term reliability.

The cups are made of aircraft-grade 7075 aluminum, strengthened by T6 heat treatment. This ensures improved wear resistance and increased longevity. The housing is fully sealed, with axial seals on the bearings and complete protection from the elements.

Guarantee

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