Shimano SM-BB92-41B Dura-Ace Bottom Bracket (Press Fit 86.5mm)

SM-BB92-41B DURA-ACE Bottom Bracket - Press Fit - HOLLOWTECH II - 86.5 mm shell width

Shimano SM-BB92-41B is a bottom bracket for press fit mounting of Hollowtech II cranks into a road frame with 86.5 mm bottom bracket shell. Hollowtech II means an axle diameter of 24 mm, which benefits stiffness and load capacity. Use this bottom bracket, which is characterised by its weight-saving ability and small ball bearings, in combination with a Dura-Ace 11-speed crank.

Key Features

• Compatibility: Shimano Hollowtech II road cranks

• Shell Width: 86.5 mm

• Cup Diameter: 41 mm

• Sealed Cups: Protects against dirt and water

• Maintenance: Maintenance-free design

• Weight Saving: Lightweight construction

• Bearing: Small ball bearings for smooth rotation

• Set Includes: Left and right cups, inner cover, inner O-rings

• Installation: Easy press-fit system

• Performance: Optimized for Dura-Ace 11-speed cranks

Product Specifications

• Type: Bottom Bracket

• Mounting: Press Fit

• Crank Compatibility: Hollowtech II

• Shell Width: 86.5 mm

• Cup Diameter: 41 mm

• Bearing Type: Sealed ball bearings

• Maintenance Requirement: None

• Material: High-strength alloy

• Weight: Lightweight design for road performance

• Speed Compatibility: 11-speed

Build Quality

• Durable Construction: Designed with high-strength materials for longevity

• Sealed Cups: Prevent water and dirt ingress for extended life

• Precision Fit: Accurate press-fit design ensures perfect alignment

• Lightweight: Reduces overall bike weight without compromising strength

• Stiffness: Hollowtech II axle improves power transfer and responsiveness

Easy Operation

• Press-Fit Installation: Simple and secure mounting process

• Maintenance-Free: No regular servicing required

• Quick Setup: Fits directly into 86.5 mm shells for fast assembly

Why Choose This Product

• Enhanced Pedaling Efficiency: Optimized for smooth power transfer

• Durable and Long-Lasting: Sealed design keeps dirt and moisture out

• Lightweight Performance: Saves weight without sacrificing strength

• Reliable Compatibility: Works seamlessly with Dura-Ace 11-speed cranks

• Professional Grade: Trusted by competitive cyclists for road performance

In the Box

Left hand cup

Right hand cup

Inner cover

Inner O-rings