Praxis Standard BSA 68/73mm MTB Bottom Bracket (Shimano)

Praxis Standard BSA 68/73mm MTB Bottom Bracket for Shimano is built for mountain bikers who demand smooth pedaling performance, long-lasting durability, and reliable crank compatibility. Designed specifically for Shimano Hollowtech II mountain bike cranksets, this threaded bottom bracket delivers secure installation and dependable performance across trail, cross-country, and all-mountain riding conditions.

Featuring precision-machined alloy cups and high-quality sealed cartridge bearings, this bottom bracket helps reduce friction while maintaining excellent drivetrain efficiency. The threaded BSA design provides a stable and creak-resistant fit, making it a reliable choice for riders upgrading or replacing worn bottom brackets on compatible MTB frames.

Praxis engineers this bottom bracket to handle tough riding environments with consistent bearing performance and improved power transfer. Compatible with both 68mm and 73mm BSA threaded mountain bike frames, it offers versatile installation for a wide range of bikes.

Ideal for riders seeking smooth crank rotation, quiet operation, and dependable durability for everyday mountain biking and aggressive trail riding.

Key Features

• Compatibility: Designed for Shimano Hollowtech II MTB cranksets

• Frame Standard: Fits BSA threaded mountain bike frames

• Shell Compatibility: Supports 68mm and 73mm frame widths

• Bearing Design: Smooth sealed cartridge bearings

• Construction: Precision-machined alloy cups

• Performance: Efficient power transfer with low friction rotation

• Installation: Secure threaded bottom bracket system

• Durability: Built for demanding MTB riding conditions

• Noise Reduction: Helps minimize creaking and movement

• Application: Suitable for trail, XC, and all-mountain bikes

Product Specifications

• Product: Praxis Standard MTB Bottom Bracket

• Bottom Bracket Standard: BSA Threaded

• Frame Width Compatibility: 68mm / 73mm

• Crank Compatibility: Shimano Hollowtech II MTB

• Bearing Type: Sealed cartridge bearings

• Cup Material: Alloy

• Thread Type: English/BSA threaded

• Application: Mountain bike drivetrain systems

• Usage: Trail, XC, MTB riding

• Installation Type: Threaded bottom bracket

Trail Performance

• Stable Pedaling Feel: Provides reliable crank support on rough terrain

• Smooth Bearing Rotation: Reduces drivetrain resistance during climbs and descents

• Creak-Resistant Design: Threaded interface improves quiet performance

• Built for MTB Use: Handles mud, dust, and demanding trail conditions

• Efficient Power Transfer: Helps maximize rider output and drivetrain response

Easy Operation / Usage

• Install into compatible BSA threaded MTB frames

• Compatible with Shimano Hollowtech II mountain cranksets

• Suitable for 68mm and 73mm frame shell widths

• Use proper bottom bracket installation tools for secure fitment

• Professional installation recommended for best performance

Why Choose This Product

• Reliable Shimano Compatibility: Designed specifically for Shimano MTB crank systems

• Durable Construction: Built to withstand aggressive mountain biking conditions

• Smooth Drivetrain Performance: High-quality bearings improve pedaling efficiency

• Secure Threaded Fit: Helps reduce noise and unwanted movement

• Versatile MTB Fitment: Compatible with common 68/73mm BSA frames

• Trusted Praxis Quality: Precision engineering for long-term reliability

In the Box

• Praxis Standard BSA MTB Bottom Bracket

• Drive-side cup

• Non-drive-side cup

• Installed bearings

• Spacers (if applicable)

• Product documentation