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Author Topic: Freeing up fork stanchions  (Read 989 times)

Offline peteremc

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Freeing up fork stanchions
« on: March 29, 2020, 03:07:43 AM »
A while back I customised an R65LS and fitted a set of Tarozzi clip ons by mounting them just below the top yoke/triple clamp. My ageing back and shoulders tell me that's no longer appropriate as they're too low and too far forward.

With the set up I have, my best solution is to change them to above the top yoke/triple clamp, which means bringing the fork stanchions up through the  clamp by about 30mm or so. I have the top clamp off and the bolts out of the bottom clamp, but the stanchions will not budge.

Does anyone have any advice on freeing up the stanchions from the bottom clamp so that I can slide them up? I've tried a bit of leverage to spread the clamp in a very gentle way as it doesn't look like it will tolerate a lot of persuasion. 

Any advice would be very much appreciated.
peteremc

1982 R65LS (Custom restoration complete)
2000 FLHRCI Harley Davidson Road King Classic (Hotrod)
2015 FLHTK Harley Davidson Ultra Classic Limited (The Tourer)

Offline Barry

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Re: Freeing up fork stanchions
« Reply #1 on: March 29, 2020, 06:31:12 AM »
It's often necessary to gently drive wooden wedges into the gap in the clamps and leave the wedge in place before the stanchions will move easily.
Barry Cheshire, England 79 R45

Online georgesgiralt

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Re: Freeing up fork stanchions
« Reply #2 on: March 29, 2020, 09:28:45 AM »
Hello peteremc
Before you commit to the moving of the stanchions, have you considered the change in front geometry 30 mm less fork will make ?
I, for one will try to find an OEM handlebar and restore the bike to it's original look. "But it's just me" ™

Offline peteremc

  • Lives in Foothills of Mt. Olympus
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  • Posts: 186
Re: Freeing up fork stanchions
« Reply #3 on: April 02, 2020, 06:43:36 PM »
Thanks Barry. That worked (after splitting a number of pieces of lesser quality timber).

Anyway, I pushed the stanchions up through the top clamp by 25mm and fitted the Tarozzi clip-ons above the top clamp and this solved all my issues with riding stance, but preserved the look of the bike.

Georgesgiralt, this is a custom bike, but a set of original LS bars would have suited the look. There are 2 types of bars for the LS and 2 part numbers on the parts microfiche that I've seen. One is described as "handlebar" and the other is described as "handlebar broad high". Unfortunately, my bike had fitted the "handlebar broad high", but I need the 'handlebars" which are lower and narrower and would've suited my bike. I couldn't find them anywhere in Australia. Pretty sure they are available in the US and saw a price of $160 US. Considering the exchange rate for the Australian $, I would've been paying about $300 for the bars - and then add freight (in US$ also). I decided to stick with my Tarozzi's thanks.

As for the effects of changes in the fork dynamics, what I noticed is that it probably tips into corners a bit more easily then previously and the steering feels just a little bit more positive/direct/stable through the bars in corners at higher speeds. That's a plus, I figure.

There was, however, another trade off. The pivot point of the centre stand is positioned perfectly so that the balance of the bike, as you would know, makes it really easy to pop it up onto the stand. When you drop the front a little way further down the forks (even as little as 25mm), it changes the balance and now it's a real chore to get it up onto the centre stand. A very small price to pay.

If anyone is looking for a set of "handlebar broad high" part # 32 71 1242959 I don't think I'll be using mine again any time soon.

Cheers
peteremc

1982 R65LS (Custom restoration complete)
2000 FLHRCI Harley Davidson Road King Classic (Hotrod)
2015 FLHTK Harley Davidson Ultra Classic Limited (The Tourer)