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Noa

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Jul 25, 2003
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Hi, I'm a little new to dirt bikes. I was just wondering about how fast would a 4 stroke 125 and 150 go and about how fast would a 2 stroke 80 and 125 go. Thanks a lot guys.
 

Okiewan

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Dec 31, 1969
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Each will hit terminal velocity in the same amount of time/distance when dropped-off a building.
 

Bet On Red

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Aug 11, 2003
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^ LOL

I'm pretty sure their max speed is between 55-65. Only difference is the time it takes to get to that speed.
You live in hawaii.. you wont even be able to use the top speed on the dirtbike without getting a ticket there! ahah I know about your ridiculous speed limits over there! I've been there.. =P
 

Okiewan

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Before we all get carried away;

Top speed of MX bikes is MEANINGLESS assuming they are bought to race/ride on MX Tracks and not drag-raced on neighborhood streets.

If you just want to know which bike (generally speaking) would be the most powerful/quickest:

1) 2 Stroke 125 (example: CR 125)
2) 2 Stroke 80 (example: CR 80)
3) 4 Stroke 150 (example: CRF 150)
4) 4 Stroke 125 (examble: TTR 125)

I hope the next question does not involve bikes vs. quads.
 

gxdragon

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Nov 13, 2002
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Originally posted by Okiewan
I hope the next question does not involve bikes vs. quads.

If superman were racing a quad, batman a bike and aquaman and jetski who would win? :laugh:
 

Patman

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Isn't it illegal to use CR125 & powerful in the same phrase?
 

MONKEYMOUSE

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May 10, 2001
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9.8 meters/second/second to be exact about the building thing okie :confused: .
 

ktmboy

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Apr 1, 2001
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Heck, the only time I can get my bike tapped out in 5th is on the powerline road, and I can only stand about 10 seconds of that!
 

jeffd

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Jun 9, 2000
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Yeah but assuming I have installed the purple powerband, a shorty silencer, helium in my front tire, and I am running race gas mixed at 32.5:1 with synthetic vegetable oil - how long will I be able to do a wheelie on my 250?

-jeffd
 

firecracker22

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C'mon, Noa and Bet on Red, why does it really matter? Speed limits don't matter since it is a DIRT BIKE anyway, and besides, how would we know? Most bikes don't come equipped with a speedometer.

You should be much more worried about size, weight, handling, and power characteristics than top speed. Can you ride either bike to the utmost of its ability? If you're asking that question, I bet the answer is no. Get the one that suits you even if it is the slower one.

But, as I am sure you already know, a two stroke 80 will run circles around a four stroke 125 or 150. I used to work for BBR and even our tricked out big bore 125s with the cam, big carb, air filter mod, etc. will lose to an 80 every time.
 

Bet On Red

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I took my 4 stroke out on the street and hauled @$$ passed a speed check point. It flashed 45 right before i passed it :)
 

firecracker22

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Oct 23, 2000
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Originally posted by Bet On Red
I took my 4 stroke out on the street and hauled @$$ passed a speed check point. It flashed 45 right before i passed it :)

That was a great idea. :think: What were you thinking? People already think that dirt bikes are dangerous and loud, and their riders are crazy and out of control. You just convinced a whole lot more that we are. :|
 

Noa

Member
Jul 25, 2003
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Sorry if this is a "meaningless" thread. I've already made up my mind on which bike to get, I was just curious about the speeds of them. Thanks for the help.
 

Jaybird

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Bet On Red...
You have made me rethink my stance on abortion.
 
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