We recommend using soap and water to keep your wheels clean. A dish-washing liquid detergent is sufficient. Even though our chrome plating is very sturdy, harsh detergents and especially abrasive products that contain bleach can cause serious harm to your chrome surfaces. This may not occur all-at-once, but rather, over time. Harsh cleaning agents will eventually spoil your chrome. If you insist upon using a cleaner, we recommend Dawn dishwashing soap or Simple Green. Between cleanings, spraying on a very thin coat of WD40 may help to minimize any chance of rust or corrosion, especially during winter storage.