Shimano Road Tiagra RS501 BSA Bottom Bracket 68mm Silver

The Shimano Tiagra BB-RS501 bottom bracket is for riders fitting a crankset with a 24 mm Hollowtech II spindle to a frame with a 68 mm BSA shell. Suitable for road, cyclocross, gravel and city bikes.

• Threads into shells with BSA threading and a width of 68 mm
• Works with cranksets with a 24 mm Hollowtech II spindle
• Lightweight: weighs just 93 g in the BSA version
• Anodised aluminium cups and steel bearings for smooth pedalling
• Before ordering, check that your crankset is on the list of compatible models

Technical specifications

• Model: BB-RS501
• Shell threading: BSA (BC 1.37)
• Shell width: 68 mm
• Crank spindle: 24 mm (Hollowtech II)
• Bearings: Steel
• Cups: Anodised aluminium
• Weight (BSA version): 93 g
• Colour: Silver
• Intended use: Road, Cyclocross, Gravel, City

Founded in 1921 in Sakai, Japan, by Shozaburo Shimano, Shimano is still based in the same city today. For cyclists, it makes drivetrains, brakes, wheels, pedals and cycling shoes. Its history in bicycle components began with the production of freewheels in 1922.