The key on bikes is 2 stroke 4 stroke. Current 2 Stroke GP bikes 125s are up to 50HP & the 250s before the class ended were up to 100HP.................so basically we're taking 400 per liter for a 2-stroke. Now for 50cc racing 2-stokes the Kreidler GP bikes back in the early 80's were up to 23 Horsepower and over 120 MPH. I can't remember the outputs for current Moto GP bikes..............I want to say 250HP but I'm 2 stroke biased.
Wouldn't a 500 HP 2 stroke be fun in a 1200..................ah the smell of bean oil in the morning.........OK back on topic.
Transfer
