These two are hard to compare but i was wondering what had the higher top speed. The bike has less weight to it, the 660 has more horsepower.

 

I think the WR450f does.

 

the bike has it by gear ratio, my tt600 will walk off and leave a raptor by about 20 bike lengths and keep on going after the raptor has stopped pulling ..I'm not saying a wr450 will go as fast as my 600 but it will still top out a raptor.

 

a stock raptor goes 77-78mph i don't know about the bike

 

My stock Raptor before pipe and jets did 81 mph. According to my g.p.s

 

Top speed is pointless, you can change that anytime with an 8 dollar sprocket. Power to weight is what counts.

 

how you use your power is what counts!! if your racing dry lake beds you want all the gears you can pull, if your draging you want less gear so you can go through them fast, and xc you want to be in the middle so you dont constantly have to shift but still have power avalible when needed. JMO

 

I agree with above

 

LOL GG!

 

On the flip side, shifting takes up time and having to shift less saves time. Ie, starting in second and not gearing down to use all 6 gears.