The Official website for MJR is under serious construction. This site should be back up and running with tons of new features and information very soon. Please forgive us as for right now it is very minimal with information.
If you have any questions please call our shop at
Thank you for your continued support and we will see you at the races soon!
MJR : 10% discount on all "Service Work" after your first service if you have a "Madjack-Racing" sticker on your bike. Our way of saying thank you for being a loyal, repeat customer.