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450 4-stroke or 250 2-stroke?
- what kind of dirtbike would you get?
started by TNT123
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July 30th 2009 at 11:27 AM
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TNT123
Junior Member
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440 Posts 
Group: Members
Member Since: August 20th 2007
Location: Johnstown, NY, USA
Current Sled: 97 indy 500/95 zr 580 cat
2008-2009 Miles: 75?
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id do alot of technical riding like logs, hill climbs, rocks, and alot of trail riding. i think that the 450 would work better for this, but i dont know yet. i figure that when whatever bike i get breaks, it will cost less to get a 2-stroke fixed, but the smooth power of a 4-stroke might be worth the trade off. if i need to, i could always gear down the 250. it will have to be a used bike, because i can only spend around $2000 on one. what does everyone think about this? what would you do, and what bike would you get?
1997 Indy 500 L/C, motor just rebuilt: runs good. lost the engine mount while riding and its not in the sled!
1995 ZR 580EFI: just needs the speedometer cable
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Site Supporter
Group: Site Supporters
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July 30th 2009 at 11:32 AM
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Bckmstr
"One Sting Is All It Takes"
Bckmstr Looking for an mx style snowmobile helmet with no luck...
Updated Thursday at 11:06 AM
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118 Posts
Group: Members
Member Since: March 30th 2009
Location: MN, USA
Current Sled: 2001 ZR440 Sno Pro
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Quote originally posted by TNT123
id do alot of technical riding like logs, hill climbs, rocks, and alot of trail riding. i think that the 450 would work better for this, but i dont know yet. i figure that when whatever bike i get breaks, it will cost less to get a 2-stroke fixed, but the smooth power of a 4-stroke might be worth the trade off. if i need to, i could always gear down the 250. it will have to be a used bike, because i can only spend around $2000 on one. what does everyone think about this? what would you do, and what bike would you get?
buddy of mine just got a '03 YZ 250F (4 stroke) and it is wicked fast. He said he's going to get rid of it cuz it is just too much power for him. he's just not used too that much power...too funny...if you lived closer you could pick this one up under 2k and it's beef up.. good luck
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July 30th 2009 at 12:21 PM
[ Modified July 30th 2009 at 12:22 PM
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TNT123
Junior Member
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440 Posts
Group: Members
Member Since: August 20th 2007
Location: Johnstown, NY, USA
Current Sled: 97 indy 500/95 zr 580 cat
2008-2009 Miles: 75?
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too much power from a 250f? i already have an 84 xt 250 4-stroke. i know its not as powerful as that yz, but i want more power than it has. thats why im looking at the 250 2-strokes and the 450 4-strokes.
1997 Indy 500 L/C, motor just rebuilt: runs good. lost the engine mount while riding and its not in the sled!
1995 ZR 580EFI: just needs the speedometer cable
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July 30th 2009 at 12:32 PM
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MNSLEDNECK56308
Senior Member
MNSLEDNECK56308 done working on trailer for the night!
Updated Thursday at 10:44 PM
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2710 Posts 
Group: Moderators
Member Since: January 12th 2004
Location: ALEXANDRIA, MN, USA
2008-2009 Miles: 1043
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250 for me, You have to be a pretty darn good rider to be able to ride the 450 to there full potential. ie the lights 250 class.
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July 30th 2009 at 1:14 PM
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MX86
Powder Rider
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1640 Posts 
Group: Members
Member Since: March 1st 2007
Location: Nashwauk, Minnesota, USA
Current Sled: 1999 polaris 700 SKS mod
2008-2009 Miles: not enough
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Here's the way i look at it.
I have a 2006 yamaha Yz250 (VF3 reeds, Race-Tech Suspension Tag Clamps and Pro Taper Bars)
My buddy has a 2006 Yz450F (Two Brothers Exhaust and Now a Race-Tech suspension)
closest thing your are going to get to a straight comparison (models have almost identical setups)
Hill climbing:
450 will beat me by a half bike length up the hill << watch the end
that and if you don't make it the 250 is so much easier to turn around (being in at 211 lbs)
Maintenance:
Both bike require their respective maintenance. 250 requires the tranny fluid to be drained regularly cause there is no filter on it, 450 requires the engine oil to be changed a lot, especially if you do hard riding. 250 requires you to pre-mix the gas, 450 requires constant attention on the valves as a precaution. a complete topend rebuild on the 250 (Piston, rings, and gaskets) will cost just about if not less then a 450 piston AND you can do it in your garage with simple tools.
Track:
No question about it the 250 is so much more fun to ride at the track, demands you to be on your game to ride it fast and it is ADDICTING. the 250 is very light (211 lbs compared to the 450 at like 237?) ya know that doesn't seem that much, but the 250 has such a low center of gravity cause the motor has no cams or gyro effects from the valve train and it sits lower in the frame that it just is so easy to move around and it doesn't have that arm ripping torque right off the get go, so it's easy to track how the bike is going to handle.
woods:
250 hands down, it's so easy to move around in tight spots, just need a spark arestor. 450 is good, but the weight and higher center of gravity and massive torque
2006 Yamaha YZ250
KYB SSS Suspension w/ Race Tech G2 gold Valve, ASV F3 levers, Tag Metals Triple clamp w/Pro Taper Bars, IMS Pro Series Pegs, Motion Pro Twist Throttle Assembly, VF3 Reeds
Thanks to my newest 09 Sponsors:
Gravity Worx Racing
Duner Central
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July 30th 2009 at 2:04 PM
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motodeficient
Waiting for more snow
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1358 Posts
Group: Members
Member Since: July 21st 2007
Location: MAINE
Current Sled: 04 XC 660 SP
2008-2009 Miles: 800
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250 2-STROKE W/ FLYWHEEL WEIGHT
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July 30th 2009 at 2:07 PM
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Dekk85
Advanced Member
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1245 Posts
Group: Members
Member Since: February 28th 2008
Location: Hawarden, Iowa, USA
Current Sled: 2003 Polaris RMK 600
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MX covered it all. Although I don't think that you will get a nice 250 or 450 for 2 grand. Is this your first bike?
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July 30th 2009 at 2:25 PM
[ Modified July 30th 2009 at 2:26 PM
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TNT123
Junior Member
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440 Posts
Group: Members
Member Since: August 20th 2007
Location: Johnstown, NY, USA
Current Sled: 97 indy 500/95 zr 580 cat
2008-2009 Miles: 75?
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i have an 84 yamaha xt 250 that the lights were removed on, and the engine is on the bench in need of $300 in parts. i will have $2000 to spendin october, but my dad said he might give me 3-500 to get a good bike. i am planning on getting a bike as soon as i get the money.
1997 Indy 500 L/C, motor just rebuilt: runs good. lost the engine mount while riding and its not in the sled!
1995 ZR 580EFI: just needs the speedometer cable
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July 30th 2009 at 3:41 PM
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MX86
Powder Rider
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1640 Posts
Group: Members
Member Since: March 1st 2007
Location: Nashwauk, Minnesota, USA
Current Sled: 1999 polaris 700 SKS mod
2008-2009 Miles: not enough
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i bought my 06 for 2500.... deals are there to be had
2006 Yamaha YZ250
KYB SSS Suspension w/ Race Tech G2 gold Valve, ASV F3 levers, Tag Metals Triple clamp w/Pro Taper Bars, IMS Pro Series Pegs, Motion Pro Twist Throttle Assembly, VF3 Reeds
Thanks to my newest 09 Sponsors:
Gravity Worx Racing
Duner Central
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July 30th 2009 at 3:48 PM
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TNT123
Junior Member
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440 Posts
Group: Members
Member Since: August 20th 2007
Location: Johnstown, NY, USA
Current Sled: 97 indy 500/95 zr 580 cat
2008-2009 Miles: 75?
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i hope i can find a deal like that when i got to buy a bike!
1997 Indy 500 L/C, motor just rebuilt: runs good. lost the engine mount while riding and its not in the sled!
1995 ZR 580EFI: just needs the speedometer cable
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July 30th 2009 at 4:07 PM
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motodeficient
Waiting for more snow
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1358 Posts
Group: Members
Member Since: July 21st 2007
Location: MAINE
Current Sled: 04 XC 660 SP
2008-2009 Miles: 800
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You should be able to get a nice 2 stroke for under 2000. A 450 4-stroke would be very hard to get for that price.
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July 30th 2009 at 7:31 PM
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TNT123
Junior Member
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440 Posts
Group: Members
Member Since: August 20th 2007
Location: Johnstown, NY, USA
Current Sled: 97 indy 500/95 zr 580 cat
2008-2009 Miles: 75?
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i have seen a few 450's around here for 2500.
1997 Indy 500 L/C, motor just rebuilt: runs good. lost the engine mount while riding and its not in the sled!
1995 ZR 580EFI: just needs the speedometer cable
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July 31st 2009 at 12:29 AM
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prank
Junior Member
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261 Posts
Group: Members
Member Since: April 29th 2006
Location: clarissa, minnesota, USA
Current Sled: 2002 440 pro-x
2008-2009 Miles: 600
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if you are doing that i doubt you would want a 450(my opinion balancing and so on. Try to test drive a 2 and 4 stroke to see difference in feeling to get better idea.
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July 31st 2009 at 5:42 AM
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PolarisPuglia
Junior Member
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313 Posts
Group: Members
Member Since: March 19th 2007
Location: Boston, MA
Current Sled: proxr 440/800 mod
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if you do a lot of techinical stuff in 1st-2nd gear a lot, you're going to want the 4 stroke. i have an xr400 and my buddy has a yz250, he hates his unless we find a straight away or some nice powerlines, in the tight woods there's no comparison between the two, sounds like you belong on a 4 stroke.
2004 PRO-Xr 440/800 mod, c&a's, vforce reeds, more coming soon...
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July 31st 2009 at 10:21 AM
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gopherguts
Junior Member
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433 Posts
Group: Members
Member Since: June 30th 2004
Location: Canada
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I would definitely say 4 stroke for your. "technical riding like logs, hill climbs, rocks, and alot of trail riding" those are all where a 4 stroke shines with its broad powerband and grunt. Don't go for an MX tuned 4-stroke though, you want an enduro type. I only know yamahas models really well but the WR450 would be a great choice. Power from the bottom up, is great when the trails get tight, and will just be easier to ride all around. The less work riding is the more fun it will be.
Kevin
350 85 Yamaha RZ
500 80 Ski-Doo Everest
1500 75 Triumph Spitfire
295 73 polaris colt/trike
640 72 Ski-Doo Nordic
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July 31st 2009 at 11:00 AM
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Polaris650rxl
Average Member
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641 Posts 
Group: Members
Member Since: February 16th 2009
Location: Little Lake, MI, USA
Current Sled: 02 XCSP 600
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I personally went with 4 stroke and got rid of my 2 strokes. Especially with my quad, SO much easier to pull up to the pump fill up and go no need to worry about mixing gas. I dont know about reliability but IMO 4 stroke is the way to go. And its all about the torque baby, cant beat em, power on demand!!
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July 31st 2009 at 11:10 AM
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TNT123
Junior Member
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440 Posts
Group: Members
Member Since: August 20th 2007
Location: Johnstown, NY, USA
Current Sled: 97 indy 500/95 zr 580 cat
2008-2009 Miles: 75?
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my friend had an rmx 250 2-stroke, so i know how they are. but what is wrong with getting something like a crf 450? i havent seen any 450s with headlights on them for the amount i can spend.
1997 Indy 500 L/C, motor just rebuilt: runs good. lost the engine mount while riding and its not in the sled!
1995 ZR 580EFI: just needs the speedometer cable
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July 31st 2009 at 11:30 AM
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Quote originally posted by PolarisPuglia
if you do a lot of techinical stuff in 1st-2nd gear a lot, you're going to want the 4 stroke. i have an xr400 and my buddy has a yz250, he hates his unless we find a straight away or some nice powerlines, in the tight woods there's no comparison between the two, sounds like you belong on a 4 stroke.
The YZ is not a woods bike.
Apples to apples.
Compare that XR out to a WR 2 stroke or to an MXC 300, something along those lines, and you will find a much closer comparrison.
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July 31st 2009 at 4:11 PM
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PolarisPuglia
Junior Member
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313 Posts
Group: Members
Member Since: March 19th 2007
Location: Boston, MA
Current Sled: proxr 440/800 mod
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Yeah you're right, just trying to give a little advice, I'd still go with a 4 stroke with your terrain description
2004 PRO-Xr 440/800 mod, c&a's, vforce reeds, more coming soon...
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July 31st 2009 at 10:24 PM
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250 2 STROKE. 4 STROKES ARE TO HEAVY AS SLOW AND THERE HARD TO WORK ON WITH TO MANY PROBLEMS. 2 STROKE ALL THE WAY
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July 31st 2009 at 11:16 PM
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2001xcsp500
Shake'n'Bake
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299 Posts
Group: Members
Member Since: September 15th 2008
Location: Elora, ontario, Canada
Current Sled: 2001 polaris 500xcsp
2008-2009 Miles: 1456
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umm if you know what your doing there not that hard to work on?i have a wr450f that i got cheap and did the grey wire mod that turns the bike into a yz and it is just stupid fast lol
2001 xcsp500
3" powermadd riser
Powermadd hand gaurds
RSR Skid plate
Yellow light sheild
Aftermarket clutch kit
V-force reeds
You can't have two number 1's that makes 11!
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August 2nd 2009 at 11:29 AM
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MX86
Powder Rider
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1640 Posts
Group: Members
Member Since: March 1st 2007
Location: Nashwauk, Minnesota, USA
Current Sled: 1999 polaris 700 SKS mod
2008-2009 Miles: not enough
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How many of you have ridden the same year same model line dirtbike in both 2 and 4 stroke versions with suspensions setup for you.....
unless you have you can not compare the two.
2006 Yamaha YZ250
KYB SSS Suspension w/ Race Tech G2 gold Valve, ASV F3 levers, Tag Metals Triple clamp w/Pro Taper Bars, IMS Pro Series Pegs, Motion Pro Twist Throttle Assembly, VF3 Reeds
Thanks to my newest 09 Sponsors:
Gravity Worx Racing
Duner Central
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August 2nd 2009 at 5:46 PM
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Mad-Boondocker
Only way to take on FEAR is to take it head on
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751 Posts
Group: Members
Member Since: February 19th 2009
Location: East Otto, NY, USA
Current Sled: 98 Polaris Indy 500 Mod
2008-2009 Miles: 185
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I would buy a 2 stroke just because it is easier to move around, I would gear it down because you can not compete with the traction that a 4 stroke can produce on any surface.
1998 Polaris Indy 500 chassis with 98 Xc 600 motor
SLP ceramic coated pipe with SLP can
V-force reeds
4 inch pivot riser
Gutted Air Box
EPI clutch kit soon to be installed
Maybe some pro tapers
1998 XC 700 water-cross sled
SLP twin pipes
Some light weight parts
Water-cross mods include taking the parts u do not need
This includes removing the seat replacing gas tank and IFS bars.
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August 3rd 2009 at 9:19 AM
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Quote originally posted by 2001xcsp500
umm if you know what your doing there not that hard to work on?i have a wr450f that i got cheap and did the grey wire mod that turns the bike into a yz and it is just stupid fast lol
Grey wire does not make it into a YZ.
There are some definate differences, WR has a wide ratio tranny where the YZ has a close ratio, WR has a heavier flywheel making it product better torque, WR has a lighting stator, suspension is set up differently.
They really are 2 different bikes.
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August 3rd 2009 at 9:58 PM
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BV_Boondocker
Holy s***! Thats a tree...
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196 Posts
Group: Members
Member Since: March 8th 2009
Location: Bear Valley, CA, USA
Current Sled: '99 Polaris RMK 700
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Ive ridden my friends 450 4 stroke, i cant remember what brand it was, but ive also ridden a bunch on my cousins ktm 250 exc 2 stroke and as far as a woods bike a 250 is way better, i can say that the fourstroke gets insane traction when compared to a 2, but when it comes to goin through the woods, goin over technical rock sections and such the lighter 250 is the way to go because of its agility, and especially if you tip it over on a really gnarly rock section.
Just my opinion though, im not a big dirt bike buff so take it for what its worth. 
"As I walk through the valley of death I fear no one, for I am the meanest motherf**ker in the valley!"
-General George Patton
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