I've read as high as 73 but as low as 65 hp so I'm not sure.
21 hp
The 1700 Roadstar puts out about 65 horsepower and about 99 ft. lbs. of torque.
21 horsepower
no
89bhp 43flb tourqe
45
YFZ 450 has 39hp
Around 130hp
The 1998 Yamaha R1/YZF-R1 had 150 horsepower and a 5-valve design. When the 2007 model came out, the horsepower had been increased to 180.
the hp rating is 60 hp
The Yamaha WR 250 is THE baddest bike on the planet. Kawasaki sucks a**. But on a more serious note the WR has about 25 more horsepower than a KLX because the KLX suckssssss!!!!!
For 2007, about 130 hp at the rear wheel, or about 148 hp at the crankshaft.