Who wants to guess the stock HP of this seemingly very nice MX style quad?

My guess is 42hp

Here's what Yamaha says. FWIW

"YFZ450 is the lightest, most powerful, best-handling ATV ever produced"

I can't wait until the performance shops get one and Dyno it to see. I'm sure the numbers will get posted somtime.

 

I would say I think you are very close, I am going to agree but say 41!!

 

37hp-40hp is my guess

 

I say about 36. The bike will be abust for the first year model just like the Raptor. They rushed it to beat Honda and it will cost them!!! The new Honda 450 will be the MX bike to beat

 

I say around 38

 

37hp at rear wheels

 

I'll say 35 to 38 hp

 

there is no 450 honda quad. And if they do make one it won't have 35+ at the wheels for sure.

 

I'll go 45HP at the wheels.

 

i say the new Yamaha will have about 37HP because i heard the YZF450 dirt bike has 45hp and they usally detune quads/ however the new handa with probably have 45-48 because the 450R dirt bike produces 55hp, again detuned