Sean Colliers KX500 build

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Sandblaster
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Sean Colliers KX500 build

Post by Sandblaster » Tue Aug 09, 2016 1:33 am

KXGURURACING.jpg
KXGURURACING.jpg (257.85 KiB) Viewed 6208 times
So the cat's out of the bag... KX Guru Racing is building Sean's next bike.
There is so much to be decided... So much to be looked at... So many people to talk to.... It's simply amazing...
So let's get this rolling.

KX Guru Racing
Oscar Cota Project Manager
Jason Tanner (JT Engine Works) Engine and Chassis build Specialist.
Alex Ward (Crazy Al's Racing) Engine and Chassis build Specialist.
Mike Collier Team Liaison
Sean Collier Test Pilot
David Olsen Research & Development Engineer
Adam Millar (Millar Racing Engines) Technical Advisor
Mike Weir General Manager


As some of you know Sean wanted a better back brake.
For those that question why, it's simple..
Sean rides at a level that few of us will ever see.
His brakes fade about half way through a moto.
Ever try racing with a bad rear brake? :o
So I put a little thought and R&D into it and finally decided on using a complete KX450F rear brake set up.
Even the rear tire will be from a KX450F.

First things first... I used a KX250F rear brake lever.
It was simple and effective.
But why not use the KX500 lever?
Leverage... The KX250F rear brake lever is about 1/2" longer then the stock KX500 lever.
Here is a stock KX250F rear brake lever and a couple of 12mm ID x 16mm OD x 10mm long Oil Impregnated Bronze bushings

Image
If bikes are for kids I'll never grow up.

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Re: Sean Colliers KX500 build

Post by Sandblaster » Tue Aug 09, 2016 1:34 am

Here is what you will get after you press the bushings in

Image
If bikes are for kids I'll never grow up.

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Re: Sean Colliers KX500 build

Post by Sandblaster » Tue Aug 09, 2016 1:36 am

This guy will be removed..

Image

All mounted up and there is plenty of clearance.

Image

You can watch the smooth action here :lol:

https://www.youtube.com/watch?v=YBoLtIa ... e=youtu.be
If bikes are for kids I'll never grow up.

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Re: Sean Colliers KX500 build

Post by Sandblaster » Tue Aug 09, 2016 1:38 am

Here is a pic with the Hammerhead Spring and Clevis kit installed.

Image

Here is a pic with another after market lever mounted and ready to try

Image

We are most likely going to use a Hammerhead lever so this will probably be updatedd..
If bikes are for kids I'll never grow up.

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Re: Sean Colliers KX500 build

Post by Sandblaster » Tue Aug 09, 2016 1:41 am

Because we are using the KX450F rear wheel with axle, blocks, and adjusters, we will need to machine these slots to 25mm

Image

I will need to make a new hanger on the inside of the swing arm to fit the KX450F rear brake caliper mount.

Image

So this guy has gotta go..

Image
If bikes are for kids I'll never grow up.

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Re: Sean Colliers KX500 build

Post by Sandblaster » Tue Aug 09, 2016 1:48 am

A friend of mine donated a KX500 swingarm for me to ruin...eeeerrrrrr... modify :shock:
KX GURU RACING SEAN COLLIER KX500 101.JPG
KX GURU RACING SEAN COLLIER KX500 101.JPG (212.76 KiB) Viewed 6415 times
Again, this mount for the KX500 rear brake mount has got to go..
KX GURU RACING SEAN COLLIER KX500 102.JPG
KX GURU RACING SEAN COLLIER KX500 102.JPG (148.21 KiB) Viewed 6415 times
KX GURU RACING SEAN COLLIER KX500 103.JPG
KX GURU RACING SEAN COLLIER KX500 103.JPG (88.99 KiB) Viewed 6415 times
If bikes are for kids I'll never grow up.

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Re: Sean Colliers KX500 build

Post by Sandblaster » Tue Aug 09, 2016 1:49 am

All gone...
KX GURU RACING SEAN COLLIER KX500 104.JPG
KX GURU RACING SEAN COLLIER KX500 104.JPG (176.86 KiB) Viewed 6414 times
KX GURU RACING SEAN COLLIER KX500 105.JPG
KX GURU RACING SEAN COLLIER KX500 105.JPG (204.87 KiB) Viewed 6414 times
KX GURU RACING SEAN COLLIER KX500 106.JPG
KX GURU RACING SEAN COLLIER KX500 106.JPG (188.88 KiB) Viewed 6414 times
Tomorrow I will get it sand blasted and start working on the new caliper mount.
If bikes are for kids I'll never grow up.

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Re: Sean Colliers KX500 build

Post by Sandblaster » Wed Aug 10, 2016 3:28 am

Oh... Something showed up this afternoon :o
KX GURU RACING SEAN COLLIER KX500 107.JPG
KX GURU RACING SEAN COLLIER KX500 107.JPG (153.25 KiB) Viewed 6407 times
KX GURU RACING SEAN COLLIER KX500 108.JPG
KX GURU RACING SEAN COLLIER KX500 108.JPG (164.32 KiB) Viewed 6407 times
If bikes are for kids I'll never grow up.

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Re: Sean Colliers KX500 build

Post by Sandblaster » Wed Aug 10, 2016 3:32 am

Let's see what we have to work with...

Dirty carb... Check!
KX GURU RACING SEAN COLLIER KX500 109.JPG
KX GURU RACING SEAN COLLIER KX500 109.JPG (193.36 KiB) Viewed 6406 times
Dirty head... Check!
KX GURU RACING SEAN COLLIER KX500 110.JPG
KX GURU RACING SEAN COLLIER KX500 110.JPG (331.91 KiB) Viewed 6406 times
If bikes are for kids I'll never grow up.

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Re: Sean Colliers KX500 build

Post by Sandblaster » Wed Aug 10, 2016 3:34 am

Dirty stock cylinder.... Check!
KX GURU RACING SEAN COLLIER KX500 111.JPG
KX GURU RACING SEAN COLLIER KX500 111.JPG (180.96 KiB) Viewed 6405 times
KX GURU RACING SEAN COLLIER KX500 113.JPG
KX GURU RACING SEAN COLLIER KX500 113.JPG (106.82 KiB) Viewed 6405 times
If bikes are for kids I'll never grow up.

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