I try to keep my bike pretty clean. Not as clean as Soundtech Guy, but pretty clean. My question to all is for cleaning tips on the wheels. The smooth part of the rim on the side and outermost area is easy enough; but the textured area on the inside, plus the spokes of the wheel itself is a bit of a head scratcher for me. I dont want to get too aggressive and damage the finish. I've been using a soft toothbrush with my usual carwash. I know it helps but I think I can get this area cleaner. Short of spraying chain cleaner (just kidding) is there anything else that works that won't compromise the finish?