top speed, quarter mile

[cbdtran_imp]

65HP can not push a bike through the wind at 150MPH....

There are exceptions..Rollie Free's HRD Vincent Black Shadow run at Bonneville Salt Flats Sept 13, 1948 150.313 mph

Oops just looked it up, his HRD was rated at 70 hp so guess you are right lol ..a stock Vincent was rated at 45 horsepower

There are exceptions..Rollie Free's HRD Vincent Black Shadow run at Bonneville Salt Flats Sept 13, 1948 150.313 mph

Oops just looked it up, his HRD was rated at 70 hp so guess you are right lol ..a stock Vincent was rated at 45 horsepower
If I ride a bicycle with high gear, my top speed is 40 MPH on flat road. I change gear to lower, my top speed is 15 MPH but I can climb hill at 6%, A very strong rider use the same bike, his top speed on flat still 40 MPH; on lower gear, his top speed is 25 at 6%.

so horse power is just one element of the real power. 65 horse with 105 lb of torques have much better top speed than 65 horse with 50 lbs torques

any engineer can shred light on this?