68mm M30 ROAD Conv BB30/PF30 with R-Collet

Praxis 68mm M30 Road Conv BB30/PF30 with R-Collet is a precision-engineered bottom bracket designed for installing Praxis M30 spindle road cranksets into BB30 and PF30 road frames. Built for riders who demand maximum drivetrain efficiency, smooth bearing performance, and long-term reliability, this bottom bracket system combines advanced engineering with a secure frame interface for superior riding performance.

Featuring Praxis’ patented R-Collet expansion technology, this bottom bracket creates an exceptionally tight and stable fit inside the frame shell. The threaded cup system connects both sides internally, reducing bearing misalignment, creaking, and unwanted movement often associated with traditional press-fit systems. By positioning the bearings outboard of the frame, the design improves crank stiffness and power transfer while maintaining smooth pedaling performance.

The integrated compressible O-ring helps compensate for frame shell tolerance variations, ensuring precise installation across compatible BB30 and PF30 road frames. Constructed from high-quality machined aluminum with premium sealed bearings, the Praxis Conv BB30/PF30 bottom bracket is ideal for road cyclists seeking durability, quiet operation, and professional-level drivetrain stability for training, racing, and endurance riding.

Key Features

• Compatibility: Designed for BB30 and PF30 road frames

• Crank Compatibility: Supports Praxis M30 spindle road cranksets

• Technology: Patented R-Collet expansion locking system

• Shell Width: Compatible with 68mm road frame shells

• Bearing Placement: Outboard bearing positioning for improved rigidity

• Frame Stability: Reduces bearing movement and misalignment

• Noise Reduction: Helps eliminate creaking common in press-fit systems

• Construction: Precision-machined aluminum cups with sealed bearings

Product Specifications

• Brand: Praxis Works

• Product Type: Road Bottom Bracket

• Model: M30 Road Conv BB30/PF30 with R-Collet

• Shell Width: 68mm

• Frame Compatibility: BB30 and PF30 road frames

• Crank Compatibility: Praxis M30 spindle cranksets

• Bearing Type: Sealed cartridge bearings

• Installation Type: Press-fit with threaded internal connection

• Material: CNC-machined aluminum

• Technology: Expanding R-Collet system

• Use Case: Road cycling and performance drivetrain setups

R-Collet Stability System

• Secure Fit: Expanding collet technology creates a tight and stable frame connection

• Improved Alignment: Internal threaded cup structure keeps bearings precisely aligned

• Enhanced Power Transfer: Outboard bearing setup improves crank stiffness and efficiency

• Quiet Operation: Minimizes creaks and movement during hard pedaling efforts

• Long-Term Reliability: Helps prevent bearing walk-out and premature wear

• Tolerance Adjustment: Compressible O-ring compensates for frame shell inconsistencies

Easy Operation / Usage

• Press the non-drive side cup into the compatible frame shell

• Thread the drive-side cup securely into position

• Tighten according to recommended torque specifications

• Install compatible Praxis M30 crankset

• Check bearing smoothness and crank rotation before riding

Why Choose This Product

• Advanced Bottom Bracket Design: Engineered for modern BB30 and PF30 road frames

• Better Drivetrain Stability: Reduces movement and bearing alignment issues

• Smooth Riding Experience: High-quality sealed bearings improve pedaling efficiency

• Professional Performance: Suitable for racing, endurance riding, and training

• Durable Construction: Built for long-lasting road cycling performance

In the Box

• 1 x Non-Drive Side Bottom Bracket Cup

• 1 x Drive Side Bottom Bracket Cup

• Integrated R-Collet Expansion System

• Pre-installed Sealed Bearings

• Installation O-Ring