I am planning on running a 06-09 GSXR 600/750 rear swinger/wheel combo on my 1980 KZ1000 sometime down the road. I am buying all of the parts so I have them here. I just purchased the rear wheel and it comes with the rotor/sprocket. I noticed that these are running 525 pitch sprocket and I just converted my KZ to the 530 chain and sprockets. I really don't want to have to convert to the 525 (if even possible) to run this set up. Does anyone know if you can get 530 pirch rear sprockets for the newer (06-09) Gsxr 600/750's??? :pinch:

This might be a good one to keep in the archives if there is enough response but what I would like to know is how long different swingarms being used are and how wide that swingarms front pivot tube is. Been looking at Busa and GSXR-1000 arms...stock and extended that will work on our KZ frames and it makes it difficult not knowing how long different arms are in stock form. I know a stock KZ arm is 19 1/2" long from center of front pivot bolt to center of axle slot. How long and how wide is the front pivot tube on a hayabusa? GSXR-1000? GSXR-600/750? ZX12R? or any other bike. If anyone who has replaced their swingarm with one off another bike would list these specs for the front pivot tube and stock length, maybe we can get some kind of file going so anyone can just look and see which one will fit their build ideas. I know I'm looking for a l-o-n-g version. I've tried asking sellers and most times just get...3" longer then stock! Don't really help. Most aftermarket builders who still build for our KZ's won't build a street arm longer then 6". They tell you to buy a clubfoot which won't work with shocks unless you heavily modify them which defeats the purpose. Anyone have these measurements they can post?

you might check the swing arm bearings. even when my axle lines up on the notches it still doesn't seem straight. and I have a wobble also.

Looks cool. 6" is a lot to add to a swingarm that wasn't all that stout to begin with. Have you considered adding some bracing? How about extending the inner flange of the extension further into the original legs? Doesn't look like a lot of engagement in the pic.

So I shouldn't worry by putting an '04 GSXR rear swingarm/wheel and using it as a commuter bike should I? Now you guys have me paranoid about bearing failure LOL

LeePalmer79 wrote:

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this is my starting point picked it up fot $400.. i have the 01-03 GSXR swing arm and shock ready to go in and am looking for the best way to do the upper shock mount..

once you figure it out, post up some good pics & a thread on it. this was what i was thinking for mine as well but without being able to see my bike in person right now, i kinda stumped on how to fab up the shock mount.

this is my starting point picked it up fot $400.. i have the 01-03 GSXR swing arm and shock ready to go in and am looking for the best way to do the upper shock mount..

Hi!
I'm working on similar bike 650 with GSXR front and ZR-6 wheels and swing arm. Wot you thinking to weld for rear shocks? I going to have two and riserching wot would be the best!
www.kzrider.com/forum/11-projects/571936...1-kz-650-ltd-project
Thank you

Hey Duck,

Where you at in CO? I'm in Fort Collins and ride a '76 KZ900 Ltd. From my research the '76 frame was beefed up from the earlier models to help with this. I havent' had this problem, but I replaced all my wheel bearings 2 years ago during the rebuild. Also replaced the swing arm bushings with needle bearings. I had over a 1/4 inch play in the swingarm before I did that. Another culprit might be the neck bearings if they are original.

To be honest, I've been too chicken to go all out since the rebuild. Had it up to 125 on 34 east of Greeley and it was really smooth, but it felt like I was starting to lift off on the rollees so I backed down.

Let me know if you're interested in the kzride to carry the flag across CO. I'm not sure If I'm going to have to ride up to Montana or N. Dakota to get it, but once it starts moving again, I'm hoping to figure it out.

Good Luck!

Link

Thank you very much. Looks like I am moving a few upgrades to the do ASAP list.
I guess I need to find some good rear shocks. Mine don't have that many miles on them but I didn't really like them anyway.

Rear swing arm and brake upgrade is coming very soon. Have everything but a master cylinder and sprocket. Stupid bushings are starting to show signs of wear with not that many miles. Swing arm might be bent too.