Page 1 of 1

1983 GS550 Forks

Posted: Fri Aug 11, 2017 5:08 pm
by Skaal-tel
So I came into the possession of a set of 83 gs550e Forks. I'm in no rush, but I think they might work well on a T500. Bikes are about the same weight, wheels were similar (ish) sizes.

the forks are 37mm vs 34, have about twice the travel, 10 years newer, but are not upside down.
came with alloy 16" wheels (very very ugly) and disc front.

I have to measure the length but I'm under the impression it's fairly easy to shorten these forks if I have to.

It even has a mech. speedo drive on the front hub.

Anybody tried this before?

Re: 1983 GS550 Forks

Posted: Sun Aug 13, 2017 4:58 am
by dollydog
should be a straight swap, including the yokes [or triple trees as you lot call them :D ]
i've used gs750 and gs1000 forks including yokes on alsorts from gt250 upwards with no problems.
cheers, dd.

Re: 1983 GS550 Forks

Posted: Sun Aug 13, 2017 6:19 am
by jabcb
I have two GT750s. One with stock forks & the other with 81/82 GS1100 forks + triple tree.
Used a Progressive Suspension lowering kit on the GS1100 forks to get the correct ride height.
The GS1100 forks ride much better — they respond to little bumps better & don’t bottom out on the big ones.

If you get them to work, the more modern forks can be a good upgrade.
All Balls Racing website has a tool for figuring out which triple trees will work on your bike. It matches them up based on bearing dimensions -- they even tell you what bearings to use.
But the website tool doesn’t consider stem length which could be a problem. So it can be useful to ask the seller what the stem length is before buying the triple tree.

The tool loads slowly, so just be patient.
https://www.allballsracing.com/index.php/forkconversion