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Z750 L4 front and rear end upgrade

Posted: Thu Feb 20, 2014 12:18 pm
Author: GPRD
Sometime in the future I'm going to be looking to upgrade the front and rear end on a Z750L4 I have in the back garden, can anyone one suggest a complete set that would work? I have use of an engineer to do the pressing out of the steering stem and welding up etc, but wanted to know which would be a good fit, i.e. the forks would be long enough and the swinging arm would fit reasonably easy.
Any recommendations would be apreciated.
Cheers

Posted: Thu Feb 20, 2014 4:23 pm
Author: oldtimer
Keep it simple and fit Zephyr 750, complete front end will probably slot straight in and back end with alloy swingarm etc.

z750

Posted: Thu Feb 20, 2014 7:41 pm
Author: compo z1r
how far do u want to go :shock:

I picked up this lot for 100 squids but im after lower stance and handling yokes from a gs750 with zrx 400 running gear the job lot 4 pot brakes all drop's straight in and zrx1100 swing arm zrx 400 back wheel can mono shock or twin shock look around and see what u wanna dooooooo

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Posted: Sun Feb 23, 2014 11:48 am
Author: GPRD
Thanks for the replies.
I'll probably keep an eye open for a Zephyr front and back end, will be easier for me.
Cheers

Posted: Sun Feb 23, 2014 1:12 pm
Author: steve.w
also zephyr 550 :?: Image

Posted: Sun Feb 23, 2014 1:14 pm
Author: Pigford
Smart :twisted:

Posted: Sun Feb 23, 2014 4:01 pm
Author: GPRD
Steve, did the 550 front and back end drop straight in?

Posted: Sun Feb 23, 2014 6:42 pm
Author: steve.w
GPRD wrote:Steve, did the 550 front and back end drop straight in?
front straight in mate rear just needed a couple of spacers but original swingarm bolt fits ..

Posted: Sun Feb 23, 2014 9:27 pm
Author: GPRD
Great, thanks Steve.

Posted: Mon Feb 24, 2014 6:27 pm
Author: big green bus
you may need to sleeve the swingarm pivot down I think the zephyr's have 17mm swingarm bolt and the z's is 15, but not a 100% :roll:

Posted: Mon Feb 24, 2014 6:51 pm
Author: steve.w
big green bus wrote:you may need to sleeve the swingarm pivot down I think the zephyr's have 17mm swingarm bolt and the z's is 15, but not a 100% :roll:
this is 550 zephyr me old spud ..ya kna i fitted this to the bike pictured so i think id know ..well if im not on snakebite ...and yes we all know ure not 100% :twisted: :twisted: :twisted: :twisted:

Posted: Mon Feb 24, 2014 8:31 pm
Author: Crofty
Gary, on the 650 frames you would need to sleeve it down, not sure about 750 frames. Though you will need a spacer both sides to stop it moving side to side. Zephyr 750 arm very alike, but has no channel down outside edge of arm,but is just smooth. also 750 arm a bit more bracing behind pivot tube, but don't think it makes any difference.

Posted: Thu Mar 27, 2014 1:07 pm
Author: GPRD
Well, it turns out the swinging arm bolt is just too big for the frame, so, what is this sleeving down you speak of?
Cheers

Posted: Thu Mar 27, 2014 3:20 pm
Author: Crofty
Gary, Go see Barry, he did mine. What I did was use the original swingarm bolt for the frame which will be too small for the swingarm. He made press in sleeves for the swingarm taking the i/d down to the same as the bolt.

The other option is drill out the frame either side so the bigger bolt will fit, difficult to go back if you go that way.

Posted: Fri Mar 28, 2014 9:22 am
Author: GPRD
Cheers Jim, I thought I would be calling on Baz.
I thought of drilling the frame, but may want to swap the arm around in the future.
I don't suppose you remember the widths of the spacers you used do you?
Cheers