Shimano BB-RS500-PB GRX Bottom Bracket (Press Fit 86.5mm)

BB-RS500-PB GRX Bottom Bracket (Press Fit 86.5mm Shell Width)

The Press Fit BB-RS500-PB bottom bracket is recommended by Shimano for the GRX, Tiagra, Sora and Claris series. This allows a Hollowtech II or 2-piece crank with a 24 mm axle to be mounted in a road frame with an 86.5mm bottom bracket width and a 41 mm shell diameter. The bottom bracket is made from a synthetic material and has black bearing cups.

Key Features

• Compatibility: Shimano GRX, Tiagra, Sora, Claris series

• Type: Press Fit BB86

• Axle Diameter: 24 mm (Hollowtech II)

• Shell Width: 86.5 mm

• Shell Diameter: 41 mm

• Material: Synthetic with black bearing cups

• Application: Road, gravel, city riding

• Durability: Resistant to wear and friction

• Smooth Performance: Ensures stable crank rotation

• Easy Installation: Designed for press-fit frames

Product Specifications

• Brand: Shimano

• Model: BB-RS500-PB GRX

• Bottom Bracket Type: Press Fit BB86

• Shell Width: 86.5 mm

• Shell Diameter: 41 mm

• Axle Compatibility: 24 mm Hollowtech II or 2-piece crank

• Material: Synthetic body, black bearing cups

• Recommended Series: GRX, Tiagra, Sora, Claris

• Weight: Lightweight construction

• Application: Road, gravel, city bikes

Build Quality

• Material Strength: High-quality synthetic ensures long-lasting durability

• Bearing Protection: Black cups reduce friction and resist wear

• Precision Fit: Accurate dimensions for consistent performance

• Corrosion Resistance: Suitable for varied riding conditions

• Stability: Maintains crank alignment for smooth pedaling

Why Choose This Product

• Reliable Performance: Smooth rotation for all riding conditions

• Versatile Compatibility: Fits multiple Shimano series

• Long-Lasting Durability: Synthetic construction and protected bearings

• Easy Upgrade: Improves drivetrain efficiency on road, gravel, and city bikes

• Trusted Brand: Shimano quality ensures consistent results

In the Box

Bottom bracket

Installation instructions