TOPIC:

A quick intro before I ask the question(s).

My name's mark and I'm from the UK - I recently bought an almost finished KZ750E project from a friend that was planning on building a cafe racer, he had already fitted a GPZ900 swingarm and was using CBR600 wheels. I took the project on and wanted to go another route and this brings me to the question, I have adapted the yokes (trees) to take ZX7R forks and wheels but I need to know if the rear of the ZX7R will fit? I have read on here that it is possible to get the rear in to a KZ1000 frame but I'm unsure if the frames are different between the 750 and the 1000?

Any help will be greatly appreciated as I'm purchasing a complete rear end later today or tomorrow and I don't want to buy if it will cost extra $ as I am already on a budget with this build.

Thanks again

I did a ZX9R front end swap on my project 1000 which worked out great but I really got stuck with the back end. I got this advice regarding swingarms,from Leon;

97-03 gsxr 600 (no upper brace)
92 gsxr 1100 (no upper or lower brace)
those should install much like the gs arm.

these will take some modification but have been used on kz's in the past (and present)
99-07 busa needs upper brace removed(possibly lower brace added)
03-04 zx6/636 needs the pivot machined narrower
01-05 fz1 needs the pivot machined narrower

these will all need shock brackets added for dual shocks if thats what you want.
i'm sure there are others but these have all been used on kz's in the past.
what you have to watch is that the pivot doesn't get to wide to where it can't be machined down to narrow it.
hth,
leon

This was a great help to me and I settled on a GSX600R swingarm with a Bandit 600 wheel with a 160 tyre. Worked out just peachy.
Welcome to the site and good luck with your build.

P.S. Pictures are always nice

many thanks for that Davido!! I have literally just got back from purchasing a complete rear end, swingarm with wheel which was still in situe and had the caliper which was still bled and the footrest with hanger all still attached. I also got the rear shock just incase I go mono and a set of 6 pot front calipers - very much a bargain.

Looks like I'm going to have to mill away around 14mm off the swingarm at the pivot and have some reducers made up to take the narrower KZ pivot bolt, bearings shouldn't be too much of an issue?

Pic attched of the 750 so far.

well I finally got some measurements from the ZX7R swingarm and it's 20mm wider than it needs to be to fit inbetween the standard 750E bosses in the frame.

It is possible to machine away some of the material from the swingarm but I fear it will be too much?

You might be able to take a bit off the swingarm and a bit off the inside of the frame. Dont know how safe that would be though.
Another thing to watch out for, is, even if you get it fitting ,look out for clearence between the swingarm(right behind the pivot tube) and the frame downtubes ( around where the passenger footrest brackets are). The arm needs room to move up and down with the travel of the shock.
I had to whack my footrest brackets off and things are still a bit tight. Im waiting for the shocks (ordered a few days ago) to measure the travel and see if I have to grind a bit off the sides of the swingarm. I hope not!
For the rest , your build is looking good. Nice clean welding.

P.S. Might be wrong but looking at the measurement on the second photo,You should be measuring twixt the inside of the round sticky out bits. Not the frame tube. You could be looking at more than 20mm difference.
An,uther thought. I remember a thread recently when someone cut the cross brace (under the swingarm pivot),forced the frame open with a car jack and rewelded it.

cheers Davido just sent you a pm...I posted the wrong pic with regards to the measurements of the frame...hold brb

ahhh that's better

Hey Monkey Doodle, I'm doing a front and rear swap too. I found this web site very helpful with my swingarm selection. I have a 1993 KZ1000P. I used a swing arm from a 2005 GSXR 600/750.








www.xjrider.com/viewtopic.php?t=3136

Various Motorcycle Swingarm Pivot Widths
I found this list of swingarms dimension.
Here's a list, sorted by swing arm pivot widths (width where the swingarm pivots in the frame).
Honda VTR SUPERHAWK (all years) - 165mm
Honda VFR 800 (1998-2001) - 165mm
Honda CBR 929 (2000-2001) - 180mm
Honda CBR 954RR (2002-2003) - 180mm
Honda RC51 SP2 (2002-?) - 180mm
1976 Suzuki GT500 - 185mm
Yamaha XS650 - 190mm
Honda VFR400 - 192mm
Honda MC18 NSR250 - 197mm
Yamaha FZR250 - 200mm
Honda XL600R - 200mm
Yamaha LC RD350 - 200mm
Honda RVF400 - 202mm
Honda NS400R - 205mm
Honda MC21 NSR250 - 205mm
Honda CB400F - 205mm
Suzuki RGV250 - 205mm
Yamaha RZ350 - 205mm
Yamaha YPVS RD350 - 205mm
1986 FZ600 - 215mm (without spacers/covers), - 220mm with spacers/covers
Suzuki Bandit GSF600 - 220mm
1992-1998 Yamaha Seca II - 220mm
1990-1996 Yamaha FZR600 - 220mm
2005 Suzuki GSXR 1000 - 225mm
1976-1982 Kawasaki KZ600 - 225mm
1994-1997 Honda VFR750 - 227mm
2001-2002 Suzuki GSXR1000 - 228mm
Kawasaki Z650/Z750 - 230mm (frame width at pivot)
2004-2005 Suzuki GSXR750 - 230mm (without washers on ends)
Suzuki TL1000S - 232mm
Honda Hawk GT650 - 235mm
Honda RC30 - 235mm
2008 Kawasaki Ninja ZX6R - 235mm
Kawasaki Z900/Z1000 - 235mm (frame width at pivot)
Honda RC30 - 235mm
1999-2002 Suzuki SV650 - 235mm
2006 Suzuki GSR500 - 238mm (w/o spacers)
2003-2009 Suzuki SV650 - 240mm
1998-2007 Yamaha YZF600R - 240mm
1990-1993 Honda VFR750 - 242mm
2005-2006 Kawasaki Ninja ZX6R (636) - 242mm
1987 Kawasaki Ninja ZX750R - 244mm
1987 Yamaha FZ750 - 245mm
2006-2011 Kawasaki Ninja 650R - 245mm
1998-2003 Suzuki Katana GSX600/750F - 245mm
2007 Yamaha YZF-R6 - 248mm
Honda RC45 - 250mm
Ducati SR4S - 255mm
2003 Kawasaki Z1000 - 255mm
MV Agusta F4 - 255mm
Kawasaki ZX10R (Gen 1-3) - 257mm
2002-2005 Yamaha FZ1 - 257mm (20mm pivot bolt)
2001 Yamaha YZF-R1 - 250mm
2003-2006 Yamaha YZF-R1 - 260mm (without caps) - 264mm (with caps)
Triumph 955i - 285mm
BMW K100 - 310mm

cheers Ronz, I'm just waiting on a friend that has his own machine shop to recover from surgery before I get my ZX6R swingarm milled a couple of mill to fit. NO doubt it will look pretty similar to yours? I really want to use the 6R pivot bolt which will mean reaming out the bosses in the 750 frame but we'll see how things go....only 4 weeks to wait

Pic of the swingarm in the frame at present.

That frame will turn into a pretzel before that swing arm bends. I was thinking jack up the swing arm and put a 1100 on it.
Steve

Steve if it turns into a pretzel I'm eating it .... I love a good pretzel

Yeah, me too.
Steve

some more progress made - excuse this build thread I'm pretty crap at keeping these updated and I forgot to take pics along the way also ..

opted for the 95 GSXR750 rearsets

a couple of more bits to sort out on the frame then powdercoat