Best suited to a customer servicing a front hub that has been confirmed to use a 17 x 30 x 7 mm 6903 bearing.
The BEARING KIT FRONT HUB 6903 is a replacement hub bearing in the common 17 x 30 x 7 mm size. It is intended for servicing a compatible front hub when the original bearing feels rough, develops play or no longer spins smoothly.
Fitment is the important detail. Different wheel and hub models can use different bearing arrangements, even when they share a similar wheel name. Before ordering, match the dimensions against the bearing being removed and confirm your hub’s required internal clearance; replacement may also require specific fit-up parts or adjustment.
If your hub is confirmed as a 6903 application, this bearing provides a straightforward replacement path for restoring smooth wheel rotation. For uncertain fitment, send us the hub model or a clear photo of the existing bearing so we can help you check it before installation.
17 x 30 x 7 mm format
Match the inner diameter, outer diameter and width against your existing bearing before purchase.
Front hub replacement
A practical service part for compatible front hubs showing roughness, play or reduced smoothness.
Check hub-specific fitment
Hub internals and bearing arrangements vary, so confirm the hub model rather than relying on the wheel name alone.
Clearance matters
Confirm whether your hub requires C3 or CN internal bearing clearance before ordering.
Installation awareness
Some hubs require new fit-up parts or adjustment when the bearings are replaced.
Suitable for service work
A sensible option when you have identified a worn 6903 bearing and want to return the hub to smooth operation.
Specifications
