If ? you are going to get lower speeds, Why the hell do you go to such a place, We have had 200mph runs in the UK on air fields, Only you might need a front brake !! Greetings Kurt, Well Done, My road bike ran 12 to 1 pistons on petrol, We had (5 star petrol ) About 102 octane ,36 mm Delorto carbs and a special 2 into 1 home made exhaust, I built a L/ning Rep' later and it was never as fast, I had to use 9 to 1 pistons because the petrol was not as good, but I think that Exhaust was super on the road bike, It was done on standard gearing, After I made the gearing higher, it did 136mph. These were only oneway runs. All The Best Bill.