Rotor BB4224 MTB BB30 for 24 mm bottom bracket

Adaptor cups and bearings for the installation of 24 mm cranks in BB30 frames.

• Bearing steel
• Aluminum cups
• BB shell size: 73 mm
• External diameter cup: 42 mm
• Spindle diameter: 24 mm
• Real weight: 120 g

Compatible with Shimano Hollowtech II bottom bracket wrench (not included).