250-500cc GK's WR300 SET-UP

You may have seen this, but I though I'd post it here. It's from GK's website.

GK's Husqvarna WR 300cc 2 stroke

-48mm KYB forks (with Ohlin's TTX inserts) KYB standard on 2010 Husqvarna
-Ohlin's TTX Shock
-Pro Circuit Works Exhaust & Shorty Silencer
- Pro Circuit cylinder and head mods
-Pro Circuit Ti foot pegs
-Steahly 10oz flywheel weight
-2000 Husqvarna CR 250 complete ignition
-Vertex domed piston
-G2 throttle with 200 cam
-G2 bark busters with G2 Delryn threaded bar inserts
-Kehin PWK 38 mm carburetor
-P3 custom carbon fiber oversize petrol tank 3.9 gallons
- P3 carbon fiber exhaust pipe guard
-P3 custom carbon fiber air box covers
-GPR steering stabilizer
-Factory Husqvarna 15mm offset triple clamp
-Magura hydraulic clutch
-Brembo rear brake master cylinder from 4 stroke Husqvarna
-5mm lower sub frame
-7mm longer clutch arm
-DP brake pads
-Renthal 14/49 gearing
-Renthal medium1/2 waffle grips, 999 bars
-RK chain
- Power Sport Graphics
-Dunlop tires and moose's
-ARC levers
-Acerbis plastics
-IMS quick fill
-Husqvarna oversize radiators
-Halls cycles radiator braces
-CV4 tumbled transmission
-Hyde Racing skid plate with mounts welded on
-Twin Air filter and dust cover
-TM Design Works chain guide
-Castrol A747 2 stroke oil

Our whole approach with the work done on the Husqvarna 300 was to increase torque and bottom end power to make a smoother and really strong bottom end power curve to suit the tight and technical demands of GNCC racing. The Pro Circuit engine mods and exhaust, combined with the ignition from the MX model and Kehin carb, create an engine with a smoother power delivery and more torque.
In the handling department the factory clamps provide better, tighter turning that is enhanced by the 2010 Husqvarna KYB forks. Ohlin's TTX shock and fork cartridge are used for more control and adjustment. The TTX shock relieved us of some fade issues we were experiencing in the 3 hour GNCC.
A big improvement was the Magura hydraulic clutch that makes for a lighter and more linear pull with a much more definite engagement point.
The rest of the modifications made to the bike are all aimed at increasing the durability of the machine for the rigors of GNCC racing along with personalizing the bike to my liking. All combined, this is one trick looking Italian stallion!

I want all that stuff, but I NEED the pipe/silencer and hydro clutch.

Obviously Pro Circuit has the pipe dimensions. Start building them !

Any idea what clutch model fits the WR250/300? I dont see anything on Magura's site.


Thanks for posting!

Anybody try the 14/49 gearing? How does it work? I run 13/48 for enduros and 14/48 for Hare Scrambles. I wonder if its a good inbetween gearing?

now thats a list!!! It give us all an idea just how modified those "production" bikes are, even in the off road world (MX is like WSBK as far as track mods go)

What is his website link?

GK's web page

Hall's has the pipe and silencer, now.

You might be able to get the Magura clutch from Wyatt Seals shop or contact Magura USA. MOTO-WORKS

I'm not sure why they switch to the 2000 CR ignition, but I think the WEC guys run it too. But, adding the FWW to the MX ignition probable just cancels out the weight loss from the WR unit.

...................

They micropolish imperfections from the gears. Cool and spendy!

tumbling the tranny results in much lower trans temps. karat guys have been doing it for years....

I emailed the guy from Magura a couple months back about a hydro clutch. He said they have a kit that bolts right up. Its new, so it has not made its way to the website yet. He told me the price was around $200.00 as a promo.

Now is your chance to buy one. #717 WR300
* I really don't know how close it is to GK's, but it has the CR ignition.

I like how the article says the bike is one of the few competitive 2-strokes. Makes me feel better about keeping my '06 WR250.

Is anyone running the Mooses or Tubliss? Do you like either one? The Mooses are more for the pro racer, right?

JS

If my poor memory serves me right,Fred Hoess had some workings with hydraulic clutches for Husky a few years ago.Might be worth a look see.
:ride: Guscycle

Hmmm,mind works in short burst sometimes......didn't I see OFG guards on his bike ?
:ride: Guscycle

He has them listed as Hall's braces, but they are the same.

I've been running the Tubliss in the rear with great results. Unlike a moose, it makes tire changes easy and appears it should last a very long time.

I'm going to get one for the front soon.

GK's bike is sweet. It also doesn't look toooooo far off from stock. All the pros have factory suspension and the motor mods aren't that different from what local racers might do [although the cr ignition + flywheel are interesting to me]. Good to hear. Now let the magazines ride it and offer their thoughts.

Finally got the ol' melon thinking and found this on Fred Hoess.May have to e-mail him to check on the hydraulic clutch for Husky. Website : pingear.com or e-mail at fhrengprod@hotmail.com .
HAVE A GOOD DAY
:ride:Guscycle