RZ/RD 350 & Misc. 2-Stroke Tech BBS

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 Post subject: Re: RZ Fork Swap
PostPosted: Wed Apr 11, 2018 7:10 pm 
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Joined: Sun Jan 29, 2006 2:18 am
Posts: 1101
Location: vancouver
Here I thought that the Longer (non Waisted) RZ fork tubes were designed to protrude from the triples... to fit the "clip ons' .
No fixing that one.. without swapping for waisted Fork tubes which are shorter Or bodging up a spacer to bolt on regular handlebar clamps above those protruding tubes.
Suppose one could safe Eff it ...and fit the tube ends flush , at the price of messing the front geometry.


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 Post subject: Re: RZ Fork Swap
PostPosted: Wed Apr 11, 2018 7:35 pm 
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Joined: Sat Oct 10, 2009 4:33 am
Posts: 9641
Location: Sydney
Yes the later legs are longer for clip ons... thought that was understood. The OP posted that he was using 'early model RZ' forks.

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 Post subject: Re: RZ Fork Swap
PostPosted: Sat May 26, 2018 9:22 am 
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Joined: Mon Oct 31, 2016 9:02 pm
Posts: 21
I seem to recall someone posting a trick for shortening the later forks by adding a spacer to the stantion inside the fork slider. Saves hacking off the top and is reversible. Called it old school method.
I was thinking of trying this on my hybrid build..if I ever get started.
Would there be an issue with the reduced travel?


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 Post subject: Re: RZ Fork Swap
PostPosted: Sun May 27, 2018 3:06 am 
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Joined: Mon Mar 03, 2014 8:44 pm
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Location: Alberta, Canada
Just swap out tubes with the earlier model.

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 Post subject: Re: RZ Fork Swap
PostPosted: Thu Aug 09, 2018 2:43 am 
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Joined: Mon Aug 20, 2012 1:37 am
Posts: 1794
Location: Calgary, Alberta
JonW wrote:
Yes the later legs are longer for clip ons... thought that was understood. The OP posted that he was using 'early model RZ' forks.


There were two reasons I needed to use the early RZ forks.

1. The need to retain the LC style top of triple clamp bar mounts

2. I have a pair of very expensive NK racing brake caliper conversion plates that fit the narrow bolt spacing of the LC forks. Later model RZ forks use a much wider spacing for the caliper mount bolts.

While later model forks do accept modern Triumph 4-piston calipers, I already have a complete brake setup featuring the NK plates and lovely Yam blue-spot calipers that I wanted to retain and save the cost of going to an entirely different set of brakes.


One issue I did run into that I wasn't aware of is the RZ triple clamps are just slightly wider than the LC triple clamps. Where this becomes and issue is at the wheel and front axle. I had to make custom wheel spacers to fill the space left by the OEM spacers and LC wheels. I also had to slightly modify the LC axle to ensure the nut screwed all the way on to it. Sometimes its nice to have your own home machine shop. :smt003

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