H&R 10mm Front / 13mm Rear Wheel Spacer & Bolt Kit | BMW 440i (16-20) (SK-007)2016 2020 BMW 440i Wheel Spacer and Bolt Kit by H&R We know that the process of picking the correct wheel spacer width and wheel bolt length for your vehicle can be a point of confusion. It can be difficult to determine what width spacer will look good and what wheel bolts to choose once you find the right spacer. This is why Turn14 Distribution decided to take the guesswork out of that process and put together complete wheel spacer kits for various