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Old 07-28-2011, 09:37 AM   #1
Fab418 OP
Pig ridin'
 
Joined: Jul 2010
Location: Saguenay, Quebec, Canada
Oddometer: 174
R1100GS fork swap & more or my HPF build

I know (and I'm glad) it's been done but here's my go at it.

The project:
Getting Miss Piggy here on a diet and improve her nimbleness so that this thing rides a little bit more like a proper dirt bike.

So far:
Twobrothers exhaust cat-elim: -18lbs,
ABS removal: -11lbs,
SS brake hoses: like I'm gonna tell if something add weigth!(although they probably don't)
Elkas front and back: same as above

In near future:
Front frame mods and fork swap
21inch ktm wheel
Front brake swap

Later:
Trimming the absurd Corbin sofa
Trimming the rear fender,ligths, etc.
Rear frame reinforcements
Headlights replacement

Beware as this may take a while. I view this bike as a work in progress. Basically, I looked all over for a perfect bike and could not find it. So instead of buying something else and modify it, I decided to keep what I had and pimp it until I am satisfied or fed up and take up knitting.

Mind you, I'm a fan of the shaft drive and boxer engine, both for feel and extended intervals of maintenance.

The bike is old and has some solid mileage so it's no garage queen. I also happen to ride it more than I wash it and it shows. Please forgive me or look in another direction.

Enjoy.
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Fabrice
TCAT traveler: If ever in need near Saguenay, Quebec; have tools, will help. PM me.
http://www.fabricetremblay.ca
My HPF: 21 inch-mx forks R11GS conversion

Fab418 screwed with this post 08-29-2011 at 07:16 PM
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Old 07-28-2011, 09:45 AM   #2
Fab418 OP
Pig ridin'
 
Joined: Jul 2010
Location: Saguenay, Quebec, Canada
Oddometer: 174
I was about to change a leaky head gasket when I saw that my right cam chain guide went south. Where I live, the summer is short so a trip to fleabay got me an 70K mile block for 200$.

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Fabrice
TCAT traveler: If ever in need near Saguenay, Quebec; have tools, will help. PM me.
http://www.fabricetremblay.ca
My HPF: 21 inch-mx forks R11GS conversion
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Old 07-28-2011, 09:56 AM   #3
Fab418 OP
Pig ridin'
 
Joined: Jul 2010
Location: Saguenay, Quebec, Canada
Oddometer: 174
The frame-fork swap

I locally found a 04 CR250 frame along with a 04 YZ250 set of forks and turned to fleabay for a front GS frame so I could still ride the pig while working on the project.

As of today, the frames are cut and ready to begin the welding phase.



Since the pegs where still on the CR frame, I had no reason not to upgrade the vintage items that came stock on the GS


My TIG welding friend will come pick the frame parts in a day or two and I'm looking around for a 21 from a 20mm axle KTM as the hub on theses can be fitted with big single rotors from the 640 adventure.

YZ fork awaiting their new life:
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Fabrice
TCAT traveler: If ever in need near Saguenay, Quebec; have tools, will help. PM me.
http://www.fabricetremblay.ca
My HPF: 21 inch-mx forks R11GS conversion
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Old 07-28-2011, 09:59 AM   #4
mouthfulloflake
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Joined: Aug 2008
Location: N.W. Arkansas
Oddometer: 15,319
cool projects!

Ive wondered if standard pegs would fit the GS mounts before.
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Old 07-28-2011, 10:06 AM   #5
Fab418 OP
Pig ridin'
 
Joined: Jul 2010
Location: Saguenay, Quebec, Canada
Oddometer: 174
Quote:
Originally Posted by mouthfulloflake View Post
cool projects!

Ive wondered if standard pegs would fit the GS mounts before.
The width is perfect, I had to drill the frame holes to accommodate the bigger CR pins, and drill a small hole on one side for the spring end to enter the peg mount as the CR springs mirror each other whereas the GS ones are identical. I also had to grind the bottom stopper on the CR pegs to have them at a right angle. took about 45 minutes. PBR kept it's cool.
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Fabrice
TCAT traveler: If ever in need near Saguenay, Quebec; have tools, will help. PM me.
http://www.fabricetremblay.ca
My HPF: 21 inch-mx forks R11GS conversion
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Old 07-28-2011, 10:18 AM   #6
mouthfulloflake
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Joined: Aug 2008
Location: N.W. Arkansas
Oddometer: 15,319
Good to know thanks!
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Old 08-04-2011, 07:37 AM   #7
Kawidad
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Joined: Jul 2005
Location: Central Coast, Cal
Oddometer: 4,482
I'm in.


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Old 08-04-2011, 01:45 PM   #8
Whale Rider
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Joined: May 2010
Location: DownUnderNZ
Oddometer: 120
Looking Good Fabrice, question why use a KTM front wheel. Why not use the YZ450 front wheel spacers and axel etc. What do you intend using the bike for? bush bashing or keeping it on the road. This is a discussion we had with Woody on which front rim width to use for different situations.
http://www.advrider.com/forums/showthread.php?t=604474
I have a 100GS front wheel fitted up to one of my 1100 with the standard telelever even that increases the off road performance by about 50%
WR
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Old 08-05-2011, 03:26 AM   #9
Dan Căta
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Location: Cluj, Romania
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Subscribed! Keep the pics commin'

Dan.
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Old 08-05-2011, 06:08 AM   #10
Fab418 OP
Pig ridin'
 
Joined: Jul 2010
Location: Saguenay, Quebec, Canada
Oddometer: 174
Quote:
Originally Posted by Whale Rider View Post
Looking Good Fabrice, question why use a KTM front wheel.
Hi WR, I choose the KTM wheel for multiple reasons:
1- Excel rim
2- 20mm axle, same as the YZ so I get to use the YZ axle and (hopefully) spacers. Everything will just bolt on to the forks.
3- I will be able to use a KTM rotor from a 640 (300mm)or 640adv(320mm) since KTM hubs are all the same. I could not find an easy match in Yamaha's line up.
4- KTM wheels abound on ebay and they are cheap too.


Quote:
Originally Posted by Whale Rider View Post
Why not use the YZ450 front wheel spacers and axel etc.
Motocross brakes will not slow the pig down! I'll use the axle and spacers (/2 above)

Quote:
Originally Posted by Whale Rider View Post
What do you intend using the bike for?
Trail, road and travel.

Quote:
Originally Posted by Whale Rider View Post
This is a discussion we had with Woody on which front rim width to use for different situations.
http://www.advrider.com/forums/showthread.php?t=604474
I have a 100GS front wheel fitted up to one of my 1100 with the standard telelever even that increases the off road performance by about 50%
WR
Nice discussion but, like on your project, they kept the telelever. I want MX forks for a couple of reasons mainly:
-the reduced weight,
-the increase in travel
-strength: I think it will hold better in hard off-road and that the on road compromise will be ok for me. My friend has a 800GS and let me ride it for 2 weeks both to commute and off-road riding. After 1000km of mixed riding, I decided that I could live with a 21" on road no problem.

I hope I answered all your questions!
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TCAT traveler: If ever in need near Saguenay, Quebec; have tools, will help. PM me.
http://www.fabricetremblay.ca
My HPF: 21 inch-mx forks R11GS conversion
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Old 08-05-2011, 06:21 AM   #11
Fab418 OP
Pig ridin'
 
Joined: Jul 2010
Location: Saguenay, Quebec, Canada
Oddometer: 174
Quote:
Originally Posted by Dan Căta View Post
Subscribed! Keep the pics commin'

Dan.
I ordered a KTM 21 on ebay that I'm still waiting for so no pics.

I got this tho:


This will take care of the welding.

Sorry for the shitty iphone pics, I'm a photographer after all High res pictures for the next updates I promise.

So for now, I'm waiting for the ktm rim and I need to visit my friend who owns a 690 to see if it's trick rotor fits an older ktm hub or if I'll have to go with a 640 rotor.
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Fabrice
TCAT traveler: If ever in need near Saguenay, Quebec; have tools, will help. PM me.
http://www.fabricetremblay.ca
My HPF: 21 inch-mx forks R11GS conversion
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Old 08-05-2011, 06:56 PM   #12
Whale Rider
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Fabrice thanks for the reply the reason I asked about the wheel is because the 450 I wrecked had an excel rim on it 1.67" which is best protected by the tire for hard off road. As for the Brakes and telelever I agree there is no way the std yz brakes will stop the GS but there are 320mm Discs available and a descent calliper is going to have to be fabricted up to suit. The telelever definetiley has its limits off road on rough surfaces you can go up to a certain speed but is to unstable above that. I had a we crash a couple of years ago and ended with one of these Name:  Broken.jpg
Views: 3538
Size:  96.7 KB and a pile of spare parts as I repaired it myself. I am currently working on my project starting with a frame.
WR
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Old 08-05-2011, 07:12 PM   #13
Whale Rider
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Joined: May 2010
Location: DownUnderNZ
Oddometer: 120
Frame to look a bit like this an hopefully the bike should look a bit like the R900 RR
Bring on your build everyone I study I get fresh ideas. I wont hijack your thread.
WR
Name:  hex3.jpg
Views: 3541
Size:  49.7 KB

Whale Rider screwed with this post 08-05-2011 at 09:23 PM
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Old 08-06-2011, 04:58 AM   #14
Fab418 OP
Pig ridin'
 
Joined: Jul 2010
Location: Saguenay, Quebec, Canada
Oddometer: 174
Thanks for the input WR. I wasn't sure on which rim to use actually and mine is from a 2004 YZ250. Don't know if any big rotor options are available tho. Anyway, I got a ktm wheel for 150$ so I'll probably try that first.

Nice project btw and don't worry about the highjack (if any), I'm here to collect info/input from others first and then to show my project and encourage people to start their own. So keep the ideas coming!
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Fabrice
TCAT traveler: If ever in need near Saguenay, Quebec; have tools, will help. PM me.
http://www.fabricetremblay.ca
My HPF: 21 inch-mx forks R11GS conversion
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Old 08-06-2011, 05:01 AM   #15
Fab418 OP
Pig ridin'
 
Joined: Jul 2010
Location: Saguenay, Quebec, Canada
Oddometer: 174
Talking about sharing thoughts, I was about to order a wider excel rim before reading WR's take on off-road and 1.67" rim being more protected by the tire so I have something new to try and will save a few $ in the process. Thanks.
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Fabrice
TCAT traveler: If ever in need near Saguenay, Quebec; have tools, will help. PM me.
http://www.fabricetremblay.ca
My HPF: 21 inch-mx forks R11GS conversion
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