Shimano BB-RS500-PB Hollowtech II Bottom Bracket | PressFit BB86
Shimano BB-RS500-PB Hollowtech II Bottom Bracket | PressFit BB86
The Press Fit BB-RS500-PB bottom bracket, recommended by Shimano for GRX, Tiagra, Sora, and Claris models, enables the installation of a Hollowtech II or 2-piece crankset with a 24 mm axle into a road bike frame. This frame requires a bottom bracket width of 86.5 mm and a shell diameter of 41 mm.
Shimano's Hollowtech II technology represents an advanced crank and bearing system aimed at achieving the ideal balance of stiffness, weight, and rotational efficiency. The system integrates the bottom bracket with the right crank arm, using a 24 mm axle or bearing diameter, which is optimal for stability. High-quality bearing seals ensure a long service life for the component.
| Category | Road, Gravel |
| BB Type | PressFit |
| Crank Brand | Shimano |
| Frame width (mm) | 86.5 |
| Axle Diameter (mm) | 24 (Hollowtech II) |
| Bearing material | Steel |
| Weight (g) | 71 |
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