OZ ATV :: The Australian ATV Forum

[t&l performance]

anybody heard anything ive been hearing its out in 2011 and it uses the kx250f 2 wheeler motor and looks much the same as the 450 ment to be competition for the rappy 250 anyone else hear this?

[scottydig]

Hi,
The details are in april 2011 dirt wheels edition.
Googled it and came up with a 2012 release .
40 hp kx motor.
Guaranted to be quick.
thanks scotty.
_________________
06 700 raptor 50th anniversary

[Roycroft]

Sounds like an april fools dirt wheels special
_________________
2012 sponsors, Working on it.

[Todd 127]

i was with kawasaki yesterday with my kids rappy 250 ??

[4stroker]

Roycroft wrote:

Sounds like an april fools dirt wheels special

but its early march?
_________________
2002 SE Banshee

[t&l performance]

Roycroft wrote:

Sounds like an april fools dirt wheels special

there known for that

[Todd 127]

Raptor/kfx 250 hybrid

You'll have to make your own, they ain't building one.

[scottydig]

As long as don't change the rule back to what they were ;
we could build /race one.
_________________
06 700 raptor 50th anniversary

[Rotax46]

FYI..............

RULE CHANGE
Information Bulletin
11 March 2011


Affected Discipline:

Quads

Rule Clarification:

22.3 Frames and Parts - Quads.

Current rules in 2011 Manual of Motorcycle Sport:

From
22.3.0.3 All Junior quads must retain OEM engine cases and frames,
22.3.0.4 Reducing the capacity of larger machines to suit the class capacity is not permitted:

To
22.3.0.3 All Junior quads must retain OEM engine cases and frames, see 22.4.1.4 for exceptions.
22.3.0.4 Reducing the capacity of larger machines or changing engines to suit the class capacity is not permitted:


Rule changes suggested by:

Quad sub committee


Date rule change takes affect from:

11 March 2011 to 31 December 2011

Feedback contact:

Barry French – MA, Operations Manager
(03) 9684 0503 or operations@ma.org.au
_________________
Rotax46
Proud member of SA Quad Club.
www.saquadclub.com.au

[bullet]

You're on to it Ron, thanks.
_________________
Can-Am X Team
Bullet #Y12. MrsB #Y18.

[ddingo]

so what does this mean??????????


22.3.0.3 All Junior quads must retain OEM engine
cases and frames, see 22.4.1.4 for
exceptions.

22.3.0.4 Reducing the capacity of larger machines
or changing engines to suit the class
capacity is not permitted

22.4.1.4 Where in Junior competition, the words
OEM standard or Limited are used,
all quads must be OEM machines with
no modifications. OEM type engine
replacement is accepted (or other
standard parts). Any engine or part
must be a direct bolt in replacement
with identical engine mounting points
and using standard OEM frame engine
mounts.


so a ktm 250f bolted into a ktm 450 frame
the 450 is a OME frame they use the same engine mounts???????
_________________
LIFE SHORT PLAY HARD!!!!!!!!!!!!

Suzuki 450 LTR
Ktm 505
Thanks to
East Coast Power Sport
Piston Energy Drinks
Queensland Quad Riders Association

[Roycroft]

Early march but april edition of dirt wheels, april fools definetly[/code]
_________________
2012 sponsors, Working on it.

[bullet]

ddingo wrote:

so what does this mean?????????? 22.3.0.3 All Junior quads must retain OEM engine cases and frames, see 22.4.1.4 for exceptions. 22.3.0.4 Reducing the capacity of larger machines or changing engines to suit the class capacity is not permitted 22.4.1.4 Where in Junior competition, the words OEM standard or Limited are used, all quads must be OEM machines with no modifications. OEM type engine replacement is accepted (or other standard parts). Any engine or part must be a direct bolt in replacement with identical engine mounting points and using standard OEM frame engine mounts. so a ktm 250f bolted into a ktm 450 frame the 450 is a OME frame they use the same engine mounts???????

It is pretty hard to write rules so that someone who goes to great lengths to find or create an example of an exception is covered.
When rules do need to be written this way, they become unreadable and contain piles of attachments, appendixes and clauses.
MA don't work this way, essentially they own the rules and they offer any final interpretation of the rules.
Our racing should not be about finding the smallest little loop hole to get around the obvious intention of any rule, and i think the intention in this example is quite clear.
If you are thinking of creating such an example (none exist at present), perhaps it is good advice to first 'ask' MA.

Great idea though, but 22.3.0.4 covers this.
You would be reducing the capacity of a larger 'machine' AND "changing engines to suit the class capacity"... so a definite No (my interpretation anyway).
_________________
Can-Am X Team
Bullet #Y12. MrsB #Y18.

[phrozin]

scottydig wrote:

Hi, The details are in april 2011 dirt wheels edition. Googled it and came up with a 2012 release . 40 hp kx motor. Guaranted to be quick. thanks scotty.

sound like frog crap 40hp from a 250 4 stroke cricky the kfx450r doesn't make that stock some one got there hand on it

[scottydig]

Hard to believe but in 2 wheel form with a pipe and jetting that's the horse power that they are getting.
The new apex250f which uses a yz 250f motor has 37 hp at the back wheels.
Big bore kit ,cams etc and they are into the high 40's and 20kg lighter than a 450 motor.
I think that it has to do with the fact that they rev well past 12000 rpm.
_________________
06 700 raptor 50th anniversary

[muzzgit]

9 days to April ??
_________________
Cheers,
MUZZ
06 YFM 700R mine
03 KFX 400 hers

[cowchaser]

Dirt Wheels have been doing April Fools articles for years!!!!! And you guys fell for it ha ha ha ha. Even Roycroft picked it up and he is as dumb as goat sh!t
_________________
Smitty

[phrozin]

scottydig wrote:

Hard to believe but in 2 wheel form with a pipe and jetting that's the horse power that they are getting. The new apex250f which uses a yz 250f motor has 37 hp at the back wheels. Big bore kit ,cams etc and they are into the high 40's and 20kg lighter than a 450 motor. I think that it has to do with the fact that they rev well past 12000 rpm.

yeh but never happens like that though the 2011 kx450f makes 54hp 38flbs stock but by the time it found it self in a quad frame it lost 15hp with there sh!tty cams and crap intake, the 2011 kx250f makes 36 hp @19 ftlbs of torque hardly a match for it big brother so 40hp stock is hard to swallow by the time it will find its self in a quad frame which I doubt will happen, even if it did most kawasaki quad owners first swap out are the crap cams in the kfx be hard to think kawasaki will still have it turning 12k in a quad form as for big bore kits the kfx450 make high 60's and mid 40ftbls with a kit so 20 kgs mean sweet FA

as for the 2011 yzf 250 makes 35hp and 19 foot pounds and the yfm250r is rated in the mid 20's I wonder what yamaha would do if kawasaki did put the kx250 engine in a quad would probably smoke the 250 yam quad

[scottydig]

Hi,

yfm250 stock are lucky to make 20hp.

Apex 250f is quoted at 35-37hp at the rear wheels.So they keep the same hp in quad form.[The big 4 de-tune to suit a variety of riding situations]

Big bore kit I was refering to a 290cc kit with cams etc.

The comparisons that I was making with regards a 450 was that at 20kg lighter and similar hp the 250 would be reasonably quick.

This is to do with junior classes.

I agree that its very doubtful that a major manufacturer would build a true performance 250cc quad.
_________________
06 700 raptor 50th anniversary

[phrozin]

scottydig wrote:

Hi, yfm250 stock are lucky to make 20hp. Apex 250f is quoted at 35-37hp at the rear wheels.So they keep the same hp in quad form.[The big 4 de-tune to suit a variety of riding situations] Big bore kit I was refering to a 290cc kit with cams etc. The comparisons that I was making with regards a 450 was that at 20kg lighter and similar hp the 250 would be reasonably quick. This is to do with junior classes. I agree that its very doubtful that a major manufacturer would build a true performance 250cc quad.

Thats pretty much imposable there is no way a quad will make the same rear wheel hp as just for starters its got to turn 3 times more weight with the rear axle and tyres its just isn't as efficient as a 80kg mx bike. when you throw in the weight of the quads 19flbs isnt going anywhere near the 38flbs a 450 makes the more weight the more that effects things. 20kgs is pretty much the difference if I dropped a turd the night before so I wouldn't get to excited about a kfx250 taking on a 450 race quad any time soon and we dont see to many stock 250 mx bikes out performing there 450 mx bike big brothers

[phil58]

Quote:

we dont see to many stock 250 mx bikes out performing there 450 mx bike big brothers

All depends on the track??
_________________
Phil.....

[scottydig]

At the 2010 Qld state titles Daniel Middleton ,who won the 12-16 yr junior class would have placed 3rd in the intermediate class based on his best time. He was riding a trx300ex.
Alot depends on the rider not just the bike.
_________________
06 700 raptor 50th anniversary

[Todd 127]

scottydig wrote:

At the 2010 Qld state titles Daniel Middleton ,who won the 12-16 yr junior class would have placed 3rd in the intermediate class based on his best time. He was riding a trx300ex. Alot depends on the rider not just the bike.

I remember going to Black duck when Luke Nixon pick up his raptor 250, i couldnt match his pace.....
250 rider with skill.
450 rider with very little skill.

Give me a turbocherged hyabusa in a ltr frame, i still would catch him......