How to properly maintain rim/wheel.

1. Thoroughly remove rust, dirt, and other foreign materials from all surfaces. Hand or electric wire brushes or sand blasting may be used. Gutter of rim should be cleared of rust and other materials that could obstruct seating of rings.

2. Rings should be cleaned with wire brushes. Pay particular attention to seating surfaces and bead seat areas.

3. Bead seat areas of rim should be free of rust and rubber deposits. This is especially important for tubeless rims, since the bead seat is the air-sealing element.

4. Wheel disc mating surfaces must be kept flat, remove any metal projections, burrs at the stud hole chamfers and paint buildup.