Rotiform Wheels - Alloy Custom Wheels sizes 18 inch through 21 inch in styles with Silver and Black. Custom car wheels just got better, with Rotiform wheels there's no need to look any further. Affordable in price and every style you will ever need to choose from. With fast shipping and tires included it couldn't be easier. Rotiform Rims at Wholesale Prices. Rotiform Rims with fast shipping.