Muc-Off Silica Wheel Seal
Price: £5.90, Rating: 3/5
Wheel Seal really struggled in the harsh conditions of our winter test, with the disc dust and road grime quickly getting a grip. All this mess was easily blasted off at the finish, though, so the Wheel Seal was obviously still present under the layer of muck. Unusually, this particular rim protector is a clear, sponge-on liquid that can also be used on tyre walls.