Ridler 645 Gloss Grey Machined And Polish 20x8.5 5x4.5 (5x114.3) Bolt Pattern 4.75" Backspace +0MM Offset 83.82MM Hub Bore one-piece cast aluminium direct bolt wheel with a 5 Spoke muscle car design. The Ridler 645 Grey is a popular rim for American classic cars, trucks, and hot rods. Ridler wheels is all about evoking nostalgia and blending it with modern-day allure. Designed to be the perfect look whether it's old school, new school or somewhere in between.