If you"ve ever seen a sleek sedan with that oh-so-low street stance and a bulging wheel/ tire combo that just barely tuck under the wheel wells, chances are that car was fitted with H&R TRAK wheel spacers. TRAK wheel spacers move the wheel out from the hub, effectively widening the stance of the vehicle and lowering its roll center. This simple modification increases lateral stability, which in turn provides improved handling, greater safety and of course, the sleek style you"ve been looking for. TRAK wheel spacers are made from a proprietary aluminum/magnesium alloy which is not only incredibly strong, but also very light weight (up to 70% lighter than a comparable steel product). TRAK wheel spacers are then hard anodized to ensure a tough, durable finish that is resistant to chipping, scratching and oxidation. Hub centric for the highest level of accuracy. Notes: H&R Trak 21mm DRM, Wheel Adaptor Bolt 5/130, Center Bore 71.6, Stud Thread 14x1.5