MH-P21 Headset Bearing 37 x 49 x 7 – 45/45

MH-P21 Bearing – High-Quality Headset Bearing for Bicycle Systems with Black Oxide Inner Race

• Dimensions – 37 x 49 x 7
  
• Chamfers – 45/45
  
• Steerer size – 1-3/8

This bearing is also referred to as: MR151 and 8C-138

There are multiple options, what do I choose?

The Elvedes premium headset bearings offer ABEC 3 precision, ensuring smoother performance and increased durability compared to the standard option listed. The bearings are made from higher-grade materials that make them ideal for riders seeking long-term reliability, while maintaining the same size specifications.