1975 KZ 900 , ZRX Swingarm, 89 GSXR front end

Great looking bike you have there...

Couple questions

what's length on the rear shocks?
are those 17" wheels?

Rear shocks:

fully extended 13.5" center to center eye to eye.

Yes they are 17 inch wheels, Front from an early 90's GSXR, rear from a 99 ZRX 1100.

Thank you for the compliment, you appear to be from Seattle, I was living in Wenatchee until 2007.

Yeah, I'm in Seattle. Thanks for the info. I'm thinking of putting a ZRX swing arm on my kz900 but can't afford to do the whole thing right now so I'm gathering info and looking for parts. I haven't found anybody local that's done this yet. Pretty clean upgrade that shares the lineage of the Z bikes.

tk11b40 wrote: This is a great idea, except for the copywrite problem.

The points cover, would be easy to make, 1 lathe Op, 1 mill op. I just need a different Logo.

I will look into this, the part is possible.

y

The KZR logo would me a bitch'n points cover. I have also considered cutting out the center and putting plexiglass in the center with some LED back lighting.

tk11b40 wrote: Rear shocks:

fully extended 13.5" center to center eye to eye.

Yes they are 17 inch wheels, Front from an early 90's GSXR, rear from a 99 ZRX 1100.

Thank you for the compliment, you appear to be from Seattle, I was living in Wenatchee until 2007.

When you are ready just hit me up. I can walk you through the swingarm switch. The 99 ZRX fits right in. Then there is the chain alignment, and the front and rear wheel alignment.

Its all do-able.

Cool thanks man. Unread skittle but of this thread and saw that aligning all that stuff can be a challenge but it's good for me somebody already did it.

might be just rehashing this, But i have a 96 GSXR 750 F.I. Srad sitting in the garage now that has no spark and because it was a totaled bike but is rebuilt almost. makes me wonder how tough it would be to put it on the frame of my KZ750 that is a 79. the gsxr is pretty much complete other then the head light and the right side clutch controls .
but i have seen several on here that have changed the rear swing arms from the early gsxrs to the KZ.

can you let me know if you have build thread on your bike? ya have me thinking of doing something like this instead of the fight for a title etc... on a totaled bike. besides i got the whole thing for 300.00 because of the no spark issue so tearing it apart might be even more fun then trying to rebuild it

Its always easier if you have both the GSXR and the KZ in the garage side by side.

I did not have that luxury so that you can compare measurements easily. I do have a good friend with a ZRX so we did a great deal of measuring before we started the swing arm swap.

I have seen a few KZ's with the Gixxer motor installed, it seems to look reasonable. Winter is coming it is time to start on the KZ project again. Ten years now I have been working on this thing.

Current state.

SeattleKZ wrote: Cool thanks man. Unread skittle but of this thread and saw that aligning all that stuff can be a challenge but it's good for me somebody already did it.

If you ping Leon (531BlackSheep) I think he is making a shaft I designed to slide the ZRX swinger in place in the KZ chassis. Just need to slice about 1/8" off the right hand side of the swinger pivot tube and push the seal in until it is flush. Slide this shaft in place and run two grade eight 5/8" bolts in from either side and your done. Then comes chain alignment....

Cory

Well my good buddy Dunnell has talked me into putting exhaust on my Ducati, this will EAT the flatslide carb money for the KZ. Ducati does not make it easy, you have to re-flash ECU, add a power commander, and Dyno the bike to get the most out of a header.



This should kill track days on the R6 and the KZ project for a few months.

I am betting this is the longest running KZ project in history. I have refurbished at least three other bikes while the KZ project has been going on. Not to mention basically resto-modding the S2 Gixxer.

Looks like I will be pulling the stock KZ carbs and taking a second look at why the number 4 carb is jacked up.

Here is an interesting site if you love the KZ:



sbkfactory.com/

While I am waiting for parts and cash..
Here is a little video my buddy Dave made of a ride we did last spring on the Playa in Nevada...