The Tiagra BB-RS500 bottom bracket by Shimano – durable performance
Specifications:
Application: Road, Cyclocross, City, Gravel
Type: BSA, ITA
Shell Width: 68 mm, 70 mm
Axle Diameter: 24 mm (Hollowtech II)
Technical Information:
Bearings: Steel
Bottom Bracket Cup Material: aluminium
Features:
– anodised bearing cups
– long-lasting performance
– improved seal design
Compatibility:
Recommended for:
– Tiagra FC-4700, FC-4703
– Sora FC-3550, FC-3503, FC-R3030, FC-R3000
– Claris FC-R2000, FC-R2030
– GRX FC-RX600
– FC-RS510, FC-RS500, FC-RS400
– FC-R563, FC-R460, FC-R350
– FC-CX50
Technology:
Hollowtech II
Shimano Hollowtech II is a crank bottom bracket system designed to achieve an ideal ratio of stiffness, weight and rotational efficiency. It is based on an integration of the bottom bracket and the right crank arm and works with a 24 mm axle or bearing diameter, which has proven to be optimal in terms of stability. In many cases, the bearing cups are on the outside so that the load is better distributed. High-quality precision seals ensure a long service life.
