I did do a search thanks, and have seen the attached thread before, but thank you for your time, although a little sarcastic.

My main issue is how to fit the swing arm into the frame as it’s width is larger. It’s only a few mm, so was looking at the different options and what bushing/seals are actually required. The pivot pin/spindle and sleeve from the kz750 could be used with replacement bearings with the required 22mm ID

Cheers jim

Partzilla shows the same part number on the 1982 GS1000S, 1982-1983 GS1100E, GS1100ES, and the 1983 GS750S.

Make that 1980 - 1983 GS1100E.

82 Suzuki GS1100E swingarm, got one on all my KZ's. It's a nice and easy upgrade. The only issue using them is you need different shocks with a clevis on the bottom instead of eyelets.

Suzuki GS1000. It was a popular modification back in the day. I have one myself. It is lighter than the KZ swing arm. If you decide to use it, you will need to use shocks for the GS or have KZ style lower mounts installed. You will also likely need a thin shim on each side of the pivot.

All your input its been very valuable its not the same to build a stock engine as building a HP engine, its tricky enough doing it from scratch but taking over an engine that someone else did its a different matter.
I took everything apart and I am getting c=the cases welded, then I am going to source the parts for that engine the pistons are not longer made from MTC and the rings are worn so either I go 1427 or do have custom made a set of 4 pistons and rings so I do not bore again the cylinder that will cause more heath. or high drop it to 1325I have recently acquired a z1900 engine that was set for 1200 and it has 125 psi I all 4 cylinder I am going to take the chance to fit it in the chassis and do all the prep to fire it that was I can asses any repairs needed and then I am going to fit a 1978 kz 1000 engine completely stock that I have and already did everything oem for this bike.
I am going to use to 1400 engine for a pro street build I am doing with extended swing arm and modern front end,
I keep you guys posted.

I'm looking for ideas on a wheel upgrade for my 79 KZ1000 MKII. I currently have a 3.5" x 18 front and a 5.5" x 17 rear. Both are stock KZ wheels that were widened. The front was an 18" from a Z1-R and the rear was a 16" LTD wheel that was widened and the diameter increased to 17". I had these done about 10 years ago and went with the 17" for a better choice of tires. I've never truly been happy with the look of the 17" rear wheel. I think it looks too small. I'll attach a pic below.

Fast forward to today and I'm planning to change things up a bit with a new, stock length swingarm and more of a sportbike style rather than the dragbike style I have now. It would be so expensive to have another wheel widened and chrome plated to match the front, so what are some other options? Modern sportbike wheels look nice but I don't want to change the forks and I want to keep the stock speedo drive etc.... I want to continue to run a 180/55 on the rear.....any ideas? Thanks

After a bit of a delay, the powder coater came through and everything looks great.

Set off straight away after work yesterday and installed the new swing arm bearings from All Balls.



Packed the rollers full of grease and pushed the seals into place. Next to install the pivots. Had a bit of overspray in the holes which required some dremel work to remove but they went in easy enough.



Positioned the swing arm and installed the center stand. Then it was time to call it a night.



Popped the stearing bearing races into the freezer before dinner. Will get back to the build after MotoGP qualifying is done this morning.

Hello all. Been away for a while. Lately, I've been daydreaming about fitting a set of the Enkei style mags to a CB550 project I'm working on.

The front is probably the easy one. Maybe a bearing swap to match the axle to the CB forks, a caliper hanger, etc.

But the rear has me thinking...
Honda never made a CB500/550 with rear disc. Was there a KZ550 (or other suitable) rear mag wheel in 18"? If so, what model(s)?

I also considered swapping to rear disc. I've found a GPZ550 rear swing arm and caliper. What size pivot bolt and axle does the KZ/GPz series use? (And while we're at it, can I get the axle size for the front, too?)

Any information, measurements, etc, you can provide would be much appreciated.

WarrensKZ wrote:

old greek wrote: Just throwing this out there, but i've heard vibrating front ends caused by swing arm bearings starting to go bad...Pete

Bearings all the way round have been changed. It was the wind that day. I have been on the bike since and its fine.

That sounds reasonable. In 50k miles of tire changing I've never experienced the excessive headlight/panel thing yet. Glad to hear that it is up and running.