I had my dealer mount the winter bikes. When I drove from the yard I noticed a small sticker with the inscription wheels after 50Km on the inside mirror. Now I wanted to know if this was absolutely necessary? Or is this just a precautionary measure of the dealer to pull himself out of the responsibility if a wheel is lost? I do not want to pull 20 plastic caps off the wheel screws to pull the wheels with my hand. I don’t have one either.