Arlen Ness, ABS bearing for 21" wheel

- ABS bearing for use with a custom (non-stock) wheel diameter - This special bearing prevents the ECU triggering trouble codes - ID 25mm - Front / rear use - Used on ABS sensor side only - On the opposite side of the wheel the 513727 regular non-ABS wheel bearing is used - Tech tip. Why this bearing? On ABS equipped bikes, the ECU (on-board computer) knows what specific wheel diameter is factory installed on that bike. When installing another wheel diameter, that is custom for the specific bike, the ECU will trigger fault codes / trouble codes. Special 'ABS bearings for custom diameter wheels' will prevent these 'different wheel diameter' trouble/fault codes.

Fits: > 08-23 H-D with ABS sensor & 21" wheel diameter