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You are talking RPM not power and yes the larger front lowers RPM at any given speed in any given gear but the power loss remains.It requires more energy to spin the wheel that 1 time with the larger front sprocket due to the loss in leverage thus your power loss. I don't know why I even went on as no matter how you paint it you are still incorrect.




Yes it does take more energy to get the wheel to move from 0 or resistance. How much energy is spent at 70 MPH with the 19t vs. the 16t. This is where you get confused. Spinning a shaft at 4300 RPMs takes a bunch more power then spinning it at 3700 RPMs. It is very simply the guiding principles of overdrive. (gearing up)

Hundreds of times on this forum folks talking about reaching for 6th gear.

Its just math, but we will never agree. You don't lose power its always there. The amount of work needed for the distance traveled changes with gearing. Once in 4th gear, maybe 3rd, I will always dyno with more power. A dyno only using 1st gear, maybe 2nd you would show more power.

The only time it changes is if the constant, the HP of the motor, cannot spin it up, or is spinning so fast it can't speed the bike up. Overgeared or undergeared. The 16t and the 19t are well within the bikes ability. Well my 790 anyway as it has more HP to spin a 19t. I don't know about the 865s.

Over an out.


I try to aggravate one person a day. Today may be your day.