with 589 tires it will do 72...which is fast enough for me!!

 

I'm surprised thats all the BF will do. I would have expected well over 75mph. My Grizz will hit about 65-66, due to the clutch kit slowing it down. And with the 27's the speedo is now dead accurate.

 

72-with 27's

 

i believe ridinhigh about the speedo being spot on with the 27s.
i have 26" mud lites on mine and the speedo is right on with those tires,
it read about 2 to 3 kilometers faster with the stock tires.
my honda will only do a slow 50 mph but i dont go very fast anyways.
i mostly do trail riding and old logging roads up into the mountains.
and speed dont matter there.

 

my friend had his BF at 65mph with 26 inch 589's and it wasnt topped out.

 

74 and run out of room. Mods are awsum on this machine.

 

Why are you surprised , utilitys are not made for speed ,they are made for torque, I am more surprised that the atv manufactures have let them get this fast , I am glad I have trails instead of roads to ride so I don't have to worry about top speed.

 

Why are you surprised , utilitys are not made for speed ,they are made for torque, I am more surprised that the atv manufactures have let them get this fast , I am glad I have trails instead of roads to ride so I don't have to worry about top speed.[/quote]

Yeah, but you know the way 4x's are now days, Its not about raw power its about speed too. Why else would they have to make a v twin 750. I"m not saying I'd want to go that fast, 65 is fast enough for rock roads around here.

 

It seems on mine that the acceleration from mid to top is alot faster. When you mod, your top speed only gains a little ,but you get there much faster.

 

Travelor, Whats your jetting with the Dyna and HMF???? and what were you running with just the Dyna before you put the exhaust on? is the low end miss gone?