300ex has reverse.
Power User
Roostin Away
300ex has reverse.
I'm the one with all the 2 stroke around here!
The day begins with 3WW
i would go with the 250x over the 300. the stroke was shorter in the 250x and the compression is higher. this made the 250x rev a little better than the 300.plus the reverse is way easier to use on the 250x.and the 250x is lighter than the 300.speed wise,the 250 will keep up with a 300ex thru 3rd gear.the 300 was not much faster.plus i like the kickstart over a battery deal. all parts will change over but the front wheels on the 87and 88 250x had a larger bolt pattern than the 91and 92 250x and 300exs.so the 87 -88 front rims only fit the 87-88 250x front hubs.91and92 250x switched over to the 300ex front hubs.allthat was different was the bolt spacing.the hubs however will fit all years.so dont think you will put 300ex front wheels on 87-88 250x front hubs unless you switch the hubs too.
Here is where my long useless list of stuff nobody cares about should go...
Proudly NOT a member of
"Team on the Teat"
Registered User
New to the board
Originally Posted by Wickedfinger
Gonna have to put up the BS flag on that oneNo turbo or nitrus is going to almost triple horsepower. The 250X was rated at just under 16 HP from the factory, the 300EX 17. The differences between the two are minimal but If you were to race them side by side, it usually comes down to rider skill and traction as to who wins the race. Mechanically, the one big advantage the 250X had over the 300EX is the 36mm carb vs the 32mm. The weight difference is minimal.
Im sorry i didnt mean just a turbo would boost the HP to like 50 it takes porting & plolishing and much more extensive work to get it to 50Hp but it does.
Within Arms Reach Of The Master
Arm chair racerLord of the trike
I've been a woods rider for life and I'd take the non-reverse 400ex over a 250x/300ex anyday!
'02 Honda 416ex - A seasoned blend of 11 herbs and spices
'04 Honda Recon - The yard machine and snow plow
'88 Honda CR250R - Another chapter in my torrid all terrain affair
First Time Rider
Arm chair racerNew to the board
opening new thread, got a different 4-wheeler
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83 atc 110
85 big red 250es
95 Kawasaki Mojave
71 SL70 - basket case - picked up 9/9/08
as soon as you're born you start dying so you might as well have a good time - John McCrea
Just Too Addicted
Arm chair racerJust too addicted
No, the 250x can't make 50hp...no matter what. My dr650 makes a mild 37hp from the factory. The honda xr650r (the one they race in baja) makes about 50hp. The crf450 makes about the same I believe?
First Time Rider
Arm chair racerNew to the board
I dont know if I would say can't, I've never done it, but im sure it can be done. It may not be worth spending the money, and i certainly wouldn't, but i bet it could be done.
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83 atc 110
85 big red 250es
95 Kawasaki Mojave
71 SL70 - basket case - picked up 9/9/08
as soon as you're born you start dying so you might as well have a good time - John McCrea
Just Too Addicted
Arm chair racerJust too addicted
The 250x bottom end wouldn't handle 50hp even if you could squeeze it out of that jug. You're talking about a 150+% hp increase
Power User
Roostin Away
TC racing build a 250x engine thats bored and stroked out to a 368cc that puts out around 45 horsepower. my friend raced one in the mid 90's. he never had tranny problems
TC's 475cc 350x motor puts out 55 to 60 horsepower.
my friend now has a yz 426 in a 250r quad thats built and put out around 60 horses. Tc makes a 520cc 350x motor that a guy he raced flat track agianst had and he could not hang with him. the guy wooped him every time.
JASON LISKEY
1985 atc 250r ---- finsh line axle,.fmf exhaust and rictor privateer silencer, prm grab bar.
2008 KTM 525xc quad ----- HMF exhaust, HRE chromoly stem,
86 trx 250r --- with after market chromoly frame and everything else done to it
01 400ex --- with 86 trx 250r motor
87 250x + 93 300ex both 350x powered
2 = 86 atc 350x's
86 atc 250r
83 atc 185s --- from retired guy not ridden since 87
Bandito framed 110 with 85 motor and yellow us90 fenders + tank
Registered User
Just too addicted
id go with the 300ex. my friend has an 03 300ex, and its pretty torqey for its size.
we drag race all of the time, he has a 300$ pro circuit exhaust on it, which made a HUGE! difference. before the slip on, he was way behind, now if i let up he can keep up.
but if i ride the 250r like i should, hes no where in sight.
the ex is a fun bike though. the suspention is crap, and its a little too narrow for my liking. other than that its fun.
First Time Rider
Arm chair racerNew to the board
i ended up getting an 89 Mojave, it was free, and it is a decent setup, strong engine reverse nice suspension. I'm fairly happy with it, but the shift rod has broke and i was quoted about $800 for repair, and the front end bushing are all shot. so it will be a while.
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83 atc 110
85 big red 250es
95 Kawasaki Mojave
71 SL70 - basket case - picked up 9/9/08
as soon as you're born you start dying so you might as well have a good time - John McCrea
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