With the stock High Lifter tires on I don’t need to go any faster than seventy, but with stock Bighorns, I need more speed!!!. I have coming this week a new set of STI wheels with 30" Rock a Billy tires. I don’t think that the gear reduction has anything to do with the speed. when this thing hits 70mph that’s it, with about 3 " of petal left before hitting the floor. My question is can I change out the computer from a stock 1000? Im not hitting crazy rpm’s like upper 7000’s. I had a 2014 1000 xp and I really miss that 10 extra MPH.