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  # 1  
Old 06-03-13, 11:09
Petenz Petenz is offline
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CR250 USD forks on XTR

I doing the USD conversion..
I'm useing 2000 Honda CR250 USD Showa units..
It's turned out a lot easyer than I thought it would be.
The Honda forks are all but a drop in conversion...
CR & XTR use the same bottom bearing 30x55x17
just needed a 7mm thick spacer to put on the CR steering stem
before the Yamaha seal & bearing as the CR stem is a little longer..
CR yokes are half the weight of the XT unit as it has a
titanium stem...

Then the top Yamaha 25x47x15 bearing is replaced with a
"32906" 30x47x12 bearing..

Be a couple of weeks before I can test ride it... forks are away getting the
the MX valve stacks replaced with a more enduro set up & heavyer springs
to carry the XTs weight.. being twin chamber canister forks I figgered it better to let
someone that knows what they are doing play with them..

Ohlins shock next..........

sorry no pics ... I left the camrea on a picnic table at the beach..
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Last edited by Petenz; 06-03-13 at 11:23.
  # 2  
Old 06-03-13, 15:14
BikerSteve46 BikerSteve46 is offline
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Can't wait to see some pics if you manage to get some
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2012 XT660X - Red (not for long)
-Black Handguards
-Removed pillion pegs and grab rails
-LED tail Light
-Mini Arrow indicators
-Few stickers
-Co2 Mod done
-Custom plastics to come soon hopefully
-Carbon wrapped plastics sometime soon
-SP Engineering Carbon Stubby exhausts with Beowulf link pipes (in progress (short on funds to do it))
-Snorkel mod
-7x5" Plate
  # 3  
Old 12-03-13, 07:11
graks graks is offline
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Interesting, must be alot better for offroad. Also waiting for some pics.
  # 4  
Old 12-03-13, 08:07
Petenz Petenz is offline
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Quote:
Originally Posted by graks View Post
Interesting, must be alot better for offroad. Also waiting for some pics.
better be....
the forks are away getting worked over at the moment...
having the length shortened to the same as the XTR forks
890mm axle centre to top... the travel is also being reduced
to XT specs of 225mm the CR forks have 300mm travel & that
puts the skid plate under the terf.. Valve stacks are being
set up more for enduro than MX..So they handle sharp quick
bumps rocks/tree roots/ditchs etc.. which MX tracks don't have...
And of course re-sprung for the extra weight of the XT...
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  # 5  
Old 12-03-13, 08:21
BikerSteve46 BikerSteve46 is offline
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Is it a straightforward swap to actually get the forks in the clamps then? Before being re-sprung, shortened, etc.?
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2012 XT660X - Red (not for long)
-Black Handguards
-Removed pillion pegs and grab rails
-LED tail Light
-Mini Arrow indicators
-Few stickers
-Co2 Mod done
-Custom plastics to come soon hopefully
-Carbon wrapped plastics sometime soon
-SP Engineering Carbon Stubby exhausts with Beowulf link pipes (in progress (short on funds to do it))
-Snorkel mod
-7x5" Plate
  # 6  
Old 12-03-13, 08:51
DaleC DaleC is offline
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Pete - interesting on your decision to run with the same travel as standard.

Also, are you looking to run a CR wheel, with CR brakes? Or fabricating spacers, spindle and caliper adapter to run the XTR wheel/brakes?

And another request for pictures....

  # 7  
Old 12-03-13, 08:57
Petenz Petenz is offline
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Quote:
Originally Posted by BikerSteve46 View Post
Is it a straightforward swap to actually get the forks in the clamps then? Before being re-sprung, shortened, etc.?
yes as close to a bolt in oparation as it could be
all you need is a new top berring 30 x 47 x 12 - 32906
the bottom bearing is the same as the XT 30 x 55 x 17
that with 2000 CR250R forks..
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  # 8  
Old 14-03-13, 08:01
Landton Landton is offline
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Sv: CR250 USD forks on XTR

320mm is to big for offroad use, I bought 300mm from ktm690 to my WP fork.

Skickat fr�n min GT-I9100 via Tapatalk 2
  # 9  
Old 18-05-13, 05:52
hypoboang hypoboang is offline
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nice set up pete.
good work.

how did you go setting up the ignition assembly? did it fit into the wr top triple or did you have to make up a plate?

and how about the steering stoppers?
what did you do there?

also did it change the handling much? just wondering if the triples have the same offset as the XT?

I have a 07' xt660x with snapped forks so am looking for clues on replacing them. USD or conventional.

cheers mate...
  # 10  
Old 18-08-13, 02:53
Petenz Petenz is offline
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I have finaly managed to get back onto the XTR suspenion..
This is taking alot longer than I hoped... trying to do two meany
things at once...

the triple clamps are a drop in fit... yer just need a 32906 bearing
for the top & the XT bottom bearing & seal... steering stops need a bit of work
I'm going to make bolt on stops from 16x16 square bar.. is simple & saves welding...
The forks have been re-valved / sprung & had the travel shortened to 240mm
as the bike only has 250mm of ground clearance...




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The easyest way to turn gasoline into noise with out the side efect of horse power...
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