Shimano HB-RM66 Complete Hub Axle - 108mm - Y2U898010

Complete Hub Axle for the Shimano HB-RM66 front hub.

This item includes the following parts:

- Y2U898020 Right Hand Lock Nut Unit
- Y23603000 Seal Ring
- Y00091210 Steel Ball (3/16") 20pcs.
- Y25W03000 Hub Axle M10 x 108mm (4-1/4")
- Y2U898030 Left Hand Lock Nut Unit

Shimano state that this part is also an "A" match with these front hubs. This means that the parts are the same in materials, appearance, finish & size etc.

MTB Front Hubs
- Shimano HB-M3050

If not available then the following are a "B" match which means that the parts are usable, but differ in materials, appearance, finish & size etc.

- Shimano Alivio HB-M4050

Genuine Shimano replacement part.

Note: Scrolling down the page will take you to the associated parts related to this front hub & their availability