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Posted by: Starky
Yes, 70 is pretty fast, expecially for a stok quad. The fastest i have been able to go on the stock Griz is 69. I'm sure with an aftermarket pipe and some jetting, most 650's and bigger can do 70 pretty easily.
Posted by: Starky
I agree with Toyboy. Just because they can go that fast, they weren't made to sustain those speeds. They can be pretty unforgiving too if you aren't paying attention.
Posted by: Starky
Stay off the pavement. If you get a little squirly there is no forgiveness.
Posted by: snowbuster
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Originally posted by: SkoolBoy
i just got 28s on my 05 grizz and i just did a top speed test, and its was defently maxed out at 56...extremly slow i thought seeing that b4 the tires is was 62+ i didnt think tires would have that big of a impact on top speed...do u guys think something is wrong with my bike (it has seem to be hittin rev-limiter when i punch it and acts like it wants to die for a second) or normal with big tires?
Its reading slower because the tires are so huge at the point where it the speed sensor, im guessing on the drive shaft, is spinning slower than usual while the size of the tires are allowing it to go faster. Another thing is because the tires are now 28 that must add at least a couple of pounds to each tire= more rotating mass. The extra weight of the rotating mass may be not allowing it to go as fast as numbers in a calculator say it should go.
Posted by: joechum
every time ive topped my cousins grizzly out on pavement it felt like the rear end was swaying back n forth n i cant notice it on bumpy roads when im close to being topped out
Posted by: joechum
your grizz should be a little faster with 28 inch tires on it, i think your speedometer is just reading off
Posted by: powerstroke01
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Originally posted by: RedGoblin
Exactly. Try doing 70 on a bumpy road on an IRS machine. Very scary.
Ive done 60 on an outlander downhill, on a REALLY bumpy road. No problem.
Posted by: ridinsmooth
just wondering and what utilitys will go over that.
Posted by: ridinsmooth
thanks for the info.
Posted by: ridinsmooth
COoL cant wait to see how fast it goes.
Posted by: RedGoblin
Traditionally, yes, however these days with the new big-bores it's almost becoming disappointing if the big 4x4s don't reach at least 70.
Posted by: RedGoblin
Exactly. Try doing 70 on a bumpy road on an IRS machine. Very scary.
Posted by: RedGoblin
Yeah. Basically if you want to top your machine out, that's fine. For the love of god though, do it on smooth pavement.
Posted by: RedGoblin
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Originally posted by: Kodiak660
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Originally posted by: RedGoblin
Yeah. Basically if you want to top your machine out, that's fine. For the love of god though, do it on smooth pavement.
I'd much rather top out my IRS quad on bumpy dirt then on pavement!
Now why is that?
Posted by: RedGoblin
Understandable. I just seem to prefer a smooth, paved road for straight-line top speed runs myself.
Posted by: CaptainQuint
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Originally posted by: Starky
Stay off the pavement. If you get a little squirly there is no forgiveness.
I'm with Starky. I had a Brute Force up to approximately 55 or 60 on pavement and it was frightening to be perfectly honest. You could feel that if there was any squirrelly-ness you wouldn't have a chance to try to correct it.
I had my old Honda 300 fourtrax 4x4 topped out on an asphalt road once (probably 45 max) and it started to sway and there was just no way to stop it. The atv was rolling into the ditch and I was sliding down the pavement on my back before I had a chance to try to correct the situation.
Even on gravel roads I rarely go over 40 now. Maybe it is because I'm getting old enough that injuries don't heal or that I've seen too many people paralyzed or with head injuries but I don't do the fast stuff anymore. I stay off sport quads and I always wear a helmet. I'm more interested in how much power I have from 0-30mph and how well a machine handles and puts that power to the ground. I could care less about how fast it will go on the top end. I'm looking at getting one of the new 800 bombers but I could care less that it goes 70 or whatever. I still want gobs of usable power and torque but I want something that is comfortable to ride so it is easy on the old back.
Sucks to get old.
Posted by: SkoolBoy
i just got 28s on my 05 grizz and i just did a top speed test, and its was defently maxed out at 56...extremly slow i thought seeing that b4 the tires is was 62+ i didnt think tires would have that big of a impact on top speed...do u guys think something is wrong with my bike (it has seem to be hittin rev-limiter when i punch it and acts like it wants to die for a second) or normal with big tires?
Posted by: SkoolBoy
nice suggestion kodiak, just put my griz back together from getting water in the belt housing...i got all the water out and ran the belt for a while, thought it was clean and dry...u suggest taking the belt out and clean it totally?
Posted by: SkoolBoy
service huh, like service i can do my self? cause ill pull it outr and get the mud out if there is any no prob, i dunno ill open it back up morrow and see wat i find.. thanks again
Posted by: SkoolBoy
hey kodiak never really said, but is that a job i can tackle myself or have to take it to the shop and get fixed?
Posted by: spyder6
yes, very fast
Posted by: Steveo10
New Outlander 800 supposely does well over 70MPH. I find that hard to believe... but i hear its true
Posted by: Steveo10
I know my DS isn't a Utility quad, but it is stable as could be. I have no fear opening the throttle on ALMOST any kind of terrain and be in very little danger.
Posted by: brutebadger
I know the Kawi Brute Brute 750 will do that and maybe the KQ 700. I don't know about the Polaris'. The Prairies with a few simple mods can reach 70 also.
My Brute 650 did 66 stock.
Posted by: brutebadger
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i just got 28s on my 05 grizz and i just did a top speed test, and its was defently maxed out at 56...extremly slow i thought seeing that b4 the tires is was 62+ i didnt think tires would have that big of a impact on top speed...do u guys think something is wrong with my bike
Youre speedometer is off. Use this formula to find the true speed. Your tire size divided by the stock tire size. When you get that number, times it by what your speedometer reads. That is the speed you are hitting.
For example: 28/25 = 1.12.
1.12 x 56 = 62.72 mph
There you have it.
Posted by: buckshot12
i second that powerstroke, i've topped out on bumpy trails without feeling out of control many times. i'm 20 years old though, maybe that's what's wrong with me!
Posted by: mfvii
imagine rolling a 600pound+ quad going over 60 mph. Thats nuts. My cousin flipped his dvx onto his lleg going 40 and shattered it to piecies, and we weren't moving very fast. Imagine a utility quad tumbling through the air when you hit a rut in the trail, or the sttering goes wobbly on you.
Posted by: Toyeboy
70mph is fast on any quad! It's incredible that these new machines can go that fast. I don't like going above 60.
Posted by: Kodiak660
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Originally posted by: RedGoblin
Yeah. Basically if you want to top your machine out, that's fine. For the love of god though, do it on smooth pavement.
I'd much rather top out my IRS quad on bumpy dirt then on pavement!
Posted by: Kodiak660
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Originally posted by: RedGoblin
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Originally posted by: Kodiak660
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Originally posted by: RedGoblin
Yeah. Basically if you want to top your machine out, that's fine. For the love of god though, do it on smooth pavement.
I'd much rather top out my IRS quad on bumpy dirt then on pavement!
Now why is that?
Because a quad is designed for off road and not pavement.......you can make a move if you have to in the dirt......do it on pavement and your in for a road rash.
And I ride a fair amount of pavement in N Idaho where it is legal to ride the roads.
Posted by: Kodiak660
Have you had your belt wet on your grizz?
If it sounds like its hitting the rev limiter it could be it you got mud or dirty water in your belt drive on your grizz.
Your weights in the primary pulley could be comming up against a build up of mud and dirty grease in the weight ramps keeping your pulley from letting you top out.
Posted by: Kodiak660
Where the problem lies is in your primary pulley....it needs to be serviced.
You have eight weights that make the pulley open and close.....what happens is there is grease on these rollers and when you get dirty water or mud in the belt drive housing the grease/mud mixture will harden and stop the weights from closing the pulley all the way in at top speed.
Posted by: Kodiak660
The grizz speedo with stock tires doesnt give a true speed reading......it reads faster then what your going........checked mine with the GPS.
Now I have 26 inch tires and the speedo is spot on with the GPS.
Posted by: Kodiak660
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Originally posted by: SkoolBoy
hey kodiak never really said, but is that a job i can tackle myself or have to take it to the shop and get fixed?
Its a job you can do yourself if your much of a mech.
I would recommend you use a service manual.
I dont know of any online manuals.
Posted by: ihop
hey i hit a rut going 63 on my friends parrie and the quad flipped for times and then went into a dicth god i was ok becuse i jump right off when the two wheels can off the ground well not ok a broken wrist but i would of been dead if i was still on and guess what all it needed was new handles bars we just ran down to the dicth like 30mins later and started it up and drove it out we told are dads we slamed on the brakes becuse a deer ran out and it flipped so they just got really mad o and we told them i was going 20 haha i will never ride that fast again 40 good for me
