not the most accurate way to tell but i had a car follow beside me for these.

85 honda atc 250sx - stock - 55 mph

86 suzuki lt230s - 20in tires, 12/39 gearing, clamp on filter w/no airbox, old rings w/ low comp.- 53ish mph - redid topend will have to recheck

86 honda atc 200s - stock- 45 mph - not mine

02 yamaha blaster - stock- 55 mph - not mine

06 kawi. kfx700 - stock - 70 mph - not mine

 

Occassionally there are long flat dirt roads or maybe a frozen lake you can try getting these answers, again and again, can't emphasize this enough, don't buy an atv to see how fast you can go up and down your street. Most responsible adults understand this but unfortunately there are plenty of young adults in their late teens who for whatever reason want to use them for this. Stay off the roads, and ride safely when you have to. I think it's safe to say that most larger and performance oriented ATVS will push the mis 60mph range and heavier and/or smaller bore ATVs will exceed the 40-55mph range.

 

<div class="FTQUOTE"><begin quote>Originally posted by: kingkevin

gotta friend works with lawenforcement clocked several of us one evening here is the list of the ones clocked
honda 400ex pipe jet kit 76mph
z400 suzuki stock 73mph
predator 500 stock 75mph
ds650 bombardier pipe carb stage III 91mph
yamaha grizzly 600 59 mph
yamaha grizzly 660 67mph
3 banshees from stock 81 mph mild modified 88mph heavily modified 111mph
rancher 350 es 52 mph rancher 350 (nones) 56mph
honda 300 fourtrax utility (old faithful) 52mph (tall tires)
raptor 660 stock 83mph
this was clocked by lawman radar gun and is good enough to rely on</end quote></div>

When u woke up where were u? the 50s I'd belive but come on man. The gear ratio in the rear ends alone wont let em go that fast. heavily modified my eye.I've got an 800 stealth and Ive gone 65 down hill. I've got some of the tallest gears u can get I topped 70 next to a truck and thats if u can belive speedos. Wake up

 

I am in the upper 30's on my Fourtrax [img]i/expressions/face-icon-small-happy.gif[/img]

 

2006 Polaris hawkeye ran 52 MPH

 

04' 450 Foreman-48 mph
05' Brute Force 750-62 mph

I think it's also important to list the weight of the rider.
My 100lb nephew will probably get more out of my bike than my 220lb fat @ss.

Also, if 62 mph sounds a little low for one of the biggest, fastest utillities out there it's because I'm honest.

 

My 06 wolverine 450 with Hauck performance clutch work, HMF pipe, Dyno jet kit and K&N filter, I hit 59mph on a flat road.

My 06 Bruin 350 stock, with some weight added due to winch and plow kit, 48ish mph on a flat road.

My 00 400ex with wiseco 440 kit, white bros e-series exhaust, dynojet kit, and k&n filter....not sure, but it passes my wolverine like its standing still.

my moms 02 rancher es 350, stock 52 mph down a hill, 49 ish on a flat road

my dads 05 foreman es 500, stock 52mph on a flat road.

 

96 sportsman 400 2 stroke.....62 mph...gps

 

my vinson speedo stops at 62, but he still climbs on the decents.

 

do you guys have stock gauges?
how do you find out how fast you are going in an atv with no spedo