REVOLUTION RACING R21 BLACK MACHINED Wheel is available in wheel sizes of 18. The REVOLUTION RACING R21 BLACK MACHINED rims are also offered in a number of bolt patterns and offsets to ensure proper fitment on your tuner car. The wheels are manufactured to extremely high standards. REVOLUTION RACING R21 BLACK MACHINED rims at unbeatable price from Victoria Tire & Wheel. Free Shipping on REVOLUTION RACING R21 BLACK MACHINED wheel and tire packages.