A wheel bearing is a crucial part of a motorcycle that enables the wheel to be rotated smoothly around the axis. The "NTN Bearing 6904-2RS 20x37x9" model presented here is specifically designed to improve the performance and lifespan of cycling assembly.
![KTM 640 LC4 [NTN] - wheel bearing](http://motorize.uk/cdn/shop/files/800Wx800H-1042513-1_db59c840-f552-48dd-a84b-9f669f93cfab.jpg?v=1747241062)