Shimano BB-UN300 center bearing, square, 113 mm

High-quality Shimano square hub with 113 mm axle. High-quality protected ball bearings and metal threaded cups. In square centers, the chainline is determined by the length of the shaft, so make sure that the size of the shaft is suitable for the cranks you use.

• Hub standard: BSA threaded
  
• Shaft length: 113 mm

Note! In the product image, the version with a 123 mm shaft.