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Old 07-16-2013, 06:08 AM   #1
LasseNC OP
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Joined: Jan 2008
Location: Denmark, Danimarka, Danmark, Dänemark
Oddometer: 1,077
USD conversion, choosing the right fork donor?

How would you go about it? I'm building an aircooled RD350 and the weight is about 140kg I reckon, but most forks are from much heavier bikes.

Originally I was going for something from a 250, Aprilia or something. Can I go with a fork from a heaver bike and adjust my way out of it?
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Old 07-16-2013, 07:02 AM   #2
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Joined: Nov 2012
Location: Minneapolis
Oddometer: 678
My buddy is building an RD350... We are putting RS250 forks on it. Main reason is easy to get parts (Racetech) and appropriate weight, length and diameter for such a small bike.

Tz250 forks were a possibility but they are rare and more expensive. The RS250 guys seem to ditch the stockeds for Ohlins and the like.
2000 Xr650r!
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Old 07-16-2013, 07:57 AM   #3
Solo Lobo
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Joined: Mar 2004
Location: Shoreline, WA
Oddometer: 9,121
I'd say to pick forks that are externally adjustable for comp and rebound.... easily
"punk rocks what it's all about" - J. Strummer

Originally Posted by Stagehand
your bike is suitably dirty. Well done.
So I sold my GS and went shopping for a G/S!

Solo Lobo screwed with this post 07-23-2013 at 09:35 AM
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Old 07-21-2013, 03:48 PM   #4
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Joined: Apr 2009
Location: Sydney, Australia
Oddometer: 159
Well you can fit all manner of forks from larger bikes, but the spring rates will be much closer for the bike weight+rider if they come from a smaller bike in the first place. On my RD350LC (421cc now) I have RGV USD forks and swingarm + wheels, they are pretty much bolt on and work very well. Details on my website in my sig etc.
Click here for my 2 smoke website with RD LC (421cc), RZ350 YPVS, XT500 Supermoto and others...

For Sale: XL500R in Sydney, Aus. PM me.
Thanks to all who have supported the Omega PloProf book at!
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