Especially for the Street Rod we offer a symmetric wheel broadening to 7,75” x 18”. They original optic will stay how it was. The keeping of the pulley and the brake disks is a low cost and easy solution if you compare it to different custom wheels. The combination of 7,75” wide wheels and 240TH tires provides the best results especially with the Street Rod models how we could experience. Especially in the freedom to bank hasn’t changed anything. When you order you have to send us your original wheel. We have a specific number of broadened Street Rod wheels. There is the possibility that we can exchange the send wheel against another if it isn’t damaged. If this is the case please contact us in the run-up. After the broadening, with each wheel a test will be done which they have to pass with 100%. The TÜV certificate is in the delivery which allows the registration at all test stations. When you use the special belt (RRC KB15) the original front sprocket wheel can be kept. The original pulley can be modified for the special belt wideness (price on request). There are no more other modifications necessary for the mounting. The inside of the wheel stays in the original optic and the rim will be not polished.