Click the Sign-up now button above and sign-up for the race today. We look forward to seeing you at the 40th Rimrock Grand Prix. Preparations are well underway and we anticipate great racing.
For the NMA Off-Road series race rules and a complete discussion of the race classes go to NMA Rules .
Display your correct class designating letter on all three motorcycle number plates.
Please read the Rimrock Race FAQ. We are bringing back the Parade Lap. It will be optional for those who are interested and will run at the same time as the Kidz race. Also, note that the 250 classes have been eliminated.
Important - Should any motorized user at any time take their vehicle in or through Tieton River or Indian Creek, they will be subject to a fine in the thousands of $$ and such activity will likely result in the loss of our event permit. As a community of motorized users, we must police our own!