Ktm/trx250r 431 led puma build

[ktm250r]

Well after my ktm/cr500 build turned out to be a big mistake I sold the engine and started a ktm/trx250r build, after fitting the engine swingarm mount and bottom mounts I had my local mod shop fab the front engine mounts and a fatty pipe made to fit the chassis, after putting 10 hours on it and not being able to take the smile off my face when riding it I decided its time for some more horsepower I contacted arlan at led preformance about building a 431 puma engine and custom exhaust and intake and he was excited to take on the build I found a good engine that has only been opened up once and a low hour 525xc rolling chassis to start this build fresh, arlan should be starting to work on the engine this month and then I have to ship him the chassis.


Plans for build
Engine:
-431cc CPI puma big bore kit
-led custom porting
-welded and balanced crank with ktm rod
-sling shot clutch
-cyroed and back cut tranny
-Ricky stator ignition to run lights/fan
-led exhaust and intake
-40mm billit smart carb


Chassis:
-plus 4 swing arm
-shocks ?
-all black plastics
-custom rad decals
-carbon fiber steering stem/bars/tie rods
-sx a-arms/seat/fuel tank
-presision steering damper/antivibe bar clamp


Here's some pics of the swingarm mount and front mount, I'm gonna let arlan do the bottom mounts, more pics to come

[Hawaiiysr]

Neto! I like !

[jcs003]

sounds cool!  tell us more about the carbon fiber stem, bars and tie rods.

john

[Tbone07]

Holy crap this is going to be sweet. I've seen a few two-stroke KTM motors being put in their quad frames but never a 250R motor.

Don't you be giving Arlan too much work...he is supposed to be working on my Sphynx lol

[Pumashine]

The 431cc with the +4 swinger will still be a hand full to ride. Pretty much a dream bike for anyone. Keep us posted!!!

[ktm250r]

sounds cool!  tell us more about the carbon fiber stem, bars and tie rods.

john

I don't know much about the stem but here the site I found it, gonna see if he can make front engine mounts too
http://www.xstreamcomposites.com/www.xstreamcomposites.com/Home.html

[ktm250r]

The 431cc with the +4 swinger will still be a hand full to ride. Pretty much a dream bike for anyone. Keep us posted!!!

What size swinger do you guys run on duner pumas?

[05450r]

Very cool, always like the look of the Ktm's, and a Led Puma should make it that much better!!

[troybilt]

Is this a duner bike or play/mx bike?  Sick build...  I was running a stock length swinger with my Saber, but its not the typical build.  I was going for an MX bike with a detuned Saber.

[jcs003]

I don't know much about the stem but here the site I found it, gonna see if he can make front engine mounts too
http://www.xstreamcomposites.com/www.xstreamcomposites.com/Home.html

they definitely have some cool stuff.

john

[Pumashine]

What size swinger do you guys run on duner pumas?

A +4 on a puma duner feels just right. No matter what the length you will still pull wheelies in all gears. I'm runnin stock, +2 and +4 on the 400's

[ktm250r]

Is this a duner bike or play/mx bike?  Sick build...  I was running a stock length swinger with my Saber, but its not the typical build.  I was going for an MX bike with a detuned Saber.

Thanks I'm gonna try to keep it for just dunes

[christph]

I'm thinking the pipe is going to be the biggest challenge, i.e., routing it through a frame built for a 4 stroke.

[ktm250r]

I'm thinking the pipe is going to be the biggest challenge, i.e., routing it through a frame built for a 4 stroke.

I've had it done twice already in ktm chassis, the biggest challenge with the exhaust is coming off the cylinder their is limited space, through the frame there's lots of room

[ktm250r]

Some how someone else's pics ended up in my first post ^^^^^^^^^^^^ :s

I got some updates and pics from arlan at led, the frame is gonna have to be modified to fit the smart carb