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1980 z1r front end conversion 01 Mar 2017 07:24 #755507

  • KZ802
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Scirocco that is a really nice set of triples. I'm sure the price reflects it though. I bought a triple tree from Hohey customs for 03-06 zx6. They are a stunt company that makes I think a 1'' drop triple so that you can run your clipons on top of your triples. I think it was lik $250 and they have drilled holes for risers and slugs in them in case you want to run clip ons. I still have a lot of work to get them all sorted out but it looks like it will be a cheap alternative
1980 KZ750 LTDx2
1978 KZ1000 LTD
1976 KZ900 A
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1980 z1r front end conversion 01 Mar 2017 11:09 #755521

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KZ802 wrote:

zed1015 wrote: Nice work.
RE- fork extensions.
You could gain extra fork length by simply fitting a 32mm male/female threaded slug to the bottom of the damper rod.
A simple job for the lathe and metric tap and die. ( don't even mention all the work I did to the Z cafe's forks for the same result :-( think I was having a brain fart on that day :-))
Depending on model the thread for the allen screw is M10 or M12 by either 1mm or 1.25mm.
This would enable a bit more leg length between the yokes by allowing the spacer block height to be reduced if required.


So basically you are making spacers that make the lower fork legs longer so the top stays the same?


thats the gist of it B)
leon
skiatook,oklahoma 1980 z1r,1978 kz 1000 z1r x 3,
1976 kz 900 x 3
i make what i can,and save the rest!

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www.kzrider.com/forum/5-chassis/325862-triple-tree-custom-work

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1980 z1r front end conversion 01 Mar 2017 11:11 #755522

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so awesome. I think this may be my favorite Z1R on this site. the combo of the swingarm and front end is killer! plus those brake tech rotors are just icing on the cake.
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1980 z1r front end conversion 01 Mar 2017 11:13 #755524

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DoctoRot wrote: so awesome. I think this may be my favorite Z1R on this site. the combo of the swingarm and front end is killer! plus those brake tech rotors are just icing on the cake.


wow!
thanks for the kind words sir!

leon
skiatook,oklahoma 1980 z1r,1978 kz 1000 z1r x 3,
1976 kz 900 x 3
i make what i can,and save the rest!

billybiltit.blogspot.com/

www.kzrider.com/forum/5-chassis/325862-triple-tree-custom-work

kzrider.com/forum/5-chassis/294594-frame-bracing?limitstart=0
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1980 z1r front end conversion 01 Mar 2017 11:37 #755530

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KZ802 wrote:

zed1015 wrote: Nice work.
RE- fork extensions.
You could gain extra fork length by simply fitting a 32mm male/female threaded slug to the bottom of the damper rod.
A simple job for the lathe and metric tap and die. ( don't even mention all the work I did to the Z cafe's forks for the same result :-( think I was having a brain fart on that day :-))
Depending on model the thread for the allen screw is M10 or M12 by either 1mm or 1.25mm.
This would enable a bit more leg length between the yokes by allowing the spacer block height to be reduced if required.


So basically you are making spacers that make the lower fork legs longer so the top stays the same?


Yes! on all forks there's an unused portion of stanchion that extends above the top fork bush or below the bottom bush depending on type.
On all usd fork I have worked on so far there is 37mm above the bush, so the damper assembly which controls travel can be extended (lifted up) to allow this portion to be used and therefore safely internally extend the forks by the same amount.
There is a rebound spring in the damper assembly to cushion any impact on the damper when the forks fully extend suddenly ( when doing a wheelie etc ) and when unloaded and in a free state it is possible to pull on the fork lower and extend it by a further 5mm so I deduct this from the 37mm to give a safe 32mm of extension.
On some of the newer forks the top bush is only 5 to 10 mm wide so don't want to risk the top of the stanchion momentarily dropping out of the bush under extreme conditions.
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Last edit: by zed1015.

1980 z1r front end conversion 02 Mar 2017 07:03 #755593

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thanks for the awesome information zed1015!:evil:

and thanks for your willingness to share information,greatly appreciated!

so with some fork mods to extend them internally and a upper triple with a 38 mm drop i would be at the ride height i want to be.

got me thinkin :)

leon
skiatook,oklahoma 1980 z1r,1978 kz 1000 z1r x 3,
1976 kz 900 x 3
i make what i can,and save the rest!

billybiltit.blogspot.com/

www.kzrider.com/forum/5-chassis/325862-triple-tree-custom-work

kzrider.com/forum/5-chassis/294594-frame-bracing?limitstart=0
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1980 z1r front end conversion 02 Mar 2017 17:42 #755624

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Looking great Leon. I am still in the process of finishing my triples, I opted for a one piece drop triple. Originally I had about the same amount of drop in mine to try and gain the loss of height due to

Question, how much offset did you put in? Did you go with the same amount of offset as the stock triple?
Jon
1977 KZ1000a1
Mesa, AZ
Phoenix Fighter Project

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1980 z1r front end conversion 06 Mar 2017 05:45 #755899

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thanks kaw-a-holic.

offset is the same as stock 00-04 r1 -r6 i used a r6 lower.
which with a little whittlin and welding could render a cheap upper drop triple clamp. :whistle:
just sayin.



leon
skiatook,oklahoma 1980 z1r,1978 kz 1000 z1r x 3,
1976 kz 900 x 3
i make what i can,and save the rest!

billybiltit.blogspot.com/

www.kzrider.com/forum/5-chassis/325862-triple-tree-custom-work

kzrider.com/forum/5-chassis/294594-frame-bracing?limitstart=0
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1980 z1r front end conversion 06 Mar 2017 06:15 #755902

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531blackbanshee wrote: offset is the same as stock 00-04 r1 -r6 i used a r6 lower.
which with a little whittlin and welding could render a cheap upper drop triple clamp. :whistle:
just sayin.
leon[/quote

Exactly what I've just done on my Z1R turbo project although the main reason was for a chunkier top yoke.
Ignore the bar clamp it wasn't finished in this pic.

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1980 z1r front end conversion 06 Mar 2017 06:51 #755905

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i should have known zed!
your work is always inspiring.
in all the front end conversions i've done,i've seen some lower triples with quite a bit of drop and thought hey.
a lil imagination this might work. :evil:

nice to see your proof of concept

thanks for posting zed.

leon
skiatook,oklahoma 1980 z1r,1978 kz 1000 z1r x 3,
1976 kz 900 x 3
i make what i can,and save the rest!

billybiltit.blogspot.com/

www.kzrider.com/forum/5-chassis/325862-triple-tree-custom-work

kzrider.com/forum/5-chassis/294594-frame-bracing?limitstart=0
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1980 z1r front end conversion 22 May 2017 07:33 #762458

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in the last three months i have been riding this bike as much as possible.
thrashing back roads and catching air off bumps etc. "TESTING" lol.
although the highway patrol that caught me on one run(tipping up exiting a corner at 98mph) wasn't sure my "TESTING" should be conducted on public roads :whistle: still got away with only a warning :evil:
i hauled the bike to austin so me and my wife could ride it to the handbuilt show.riding it around downtown atx was fun but the highways were intense.loud pipes really do save lives!
i love the weight loss and the corner stability is amazing.it's rock solid.whoever knew one finger brakes existed ! wow,i love the front brakes on this thing,
the upper triple shifted a lil negligibly.
by shifting i mean,rubbing your hand across the bolted together surfaces you could feel a few thousandths .
nuthin i was really concerned about.
but to allay any future concerns, i dis-assembled them and installed 3/8's stainless dowels.
all in all i am pleased with the conversion.
my wife on the other hand was not to proud of the diminished turning radius.:pinch:
that is taking some getting used to.parking lot maneuvers need to be a lot more deliberate.

leon
skiatook,oklahoma 1980 z1r,1978 kz 1000 z1r x 3,
1976 kz 900 x 3
i make what i can,and save the rest!

billybiltit.blogspot.com/

www.kzrider.com/forum/5-chassis/325862-triple-tree-custom-work

kzrider.com/forum/5-chassis/294594-frame-bracing?limitstart=0
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1980 z1r front end conversion 22 May 2017 07:44 #762462

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BIke looks sinister as hell! I like it, a lot! Totally agree, those brakes are wonderful, and a much needed upgrade for spirited riding. Tell me, did you notice a much more stable feel at the higher speeds, possibly attributed to the lower offset trees adding to the trail of the bike?

Nice Job!

Les

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