Anyone know the parts Steve used to make the 7th gear bevel drive?

[Chrome Megaphone]

ZG1200 gears and a new pinion seal are on the way, will end posting in this thread and start a diy how-to if I'm successful.

[connie_rider]

The seller reported that compared to a C10 unit the Venture final drive is identical in every way EXCEPT the Connie is 3mm longer 

3 mm longer on a Connie might mean that all you have to do is build a 3 mm shim?
The splines on the driveshaft would still be the right length.

I tried to get my head around the ratio. Out of practice.
(Using 5000 RPM/80 mph) What would the RPM's be at 80 mph with the 1200 differential?

Ride safe, Ted

[Chrome Megaphone]

I thought about a shim but there's the coupling sleeve and wasn't sure if the pinion-driveshaft gap would be too much.  I found the ZG1200 gears and ordered a 160/80/16 to knock off a hundred RPM or two if I don't get the bevel swap done in time for the trip in May to Indy.

[Chrome Megaphone]

3 mm longer on a Connie might mean that all you have to do is build a 3 mm shim?
The splines on the driveshaft would still be the right length.

I tried to get my head around the ratio. Out of practice.
(Using 5000 RPM/80 mph) What would the RPM's be at 80 mph with the 1200 differential?

Ride safe, Ted

Out of curiosity sake I may get a 1200 diff in the future and investigate this approach.  I replaced the final drive on my bike with a later model because of pinion seal leakage and flaking paint.  Maybe I could have tried swapping gears but I gave the old one to the junk man auughh

[mercer]

#3 Reply. Has anyone here mounted a 160/80/16?

Yes, absolutely no problem on my 87!

[Furbo]

I'll simply say that I bought my Connie to use in Europe, put 70K miles on it over the Alps & on Autostrada's and Autobahns. Bought the 7th gear mod when it was available and it is THE BEST mod I ever made to my Connie. 100mph at about 5500 - 6000 rpm depending on wind & grade.

[bowtie39]

I'll simply say that I bought my Connie to use in Europe, put 70K miles on it over the Alps & on Autostrada's and Autobahns. Bought the 7th gear mod when it was available and it is THE BEST mod I ever made to my Connie. 100mph at about 5500 - 6000 rpm depending on wind & grade.

  It very well may be! 

[Steve in Sunny Fla]

Maybe I'm going to find out charging $500 for this was a bit much and hence the flaming thread derailment.

    HA! not even close... now you're going to find out the meaning of "be careful what you wish for". Setting up the gears is about the easiest part of this modification. Be prepared for a lot of precision measuring and machining.

  Steve

[Big Red]

HA! not even close... now you're going to find out the meaning of "be careful what you wish for".

If it was easy, everyone would do it.

[connie_rider]

Has anyone here mounted a 160/80/16?  Does it rub? A taller rear might do it, I have a spare rear wheel and could make a travelling tire/rim set.

Just to be different: I installed a 180/60-16 on mine.

[Boomer]

Just to be different: I installed a 180/60-16 on mine.

That's a smaller diameter (180/60-16 = 24.5" vs 25.4" for the 150/80-16) so will give higher rpm at a given speed.
You'll get a mild improvement in the 0-60 and 1/4 mile but not much.

A 160/80-16 takes that diameter up to 26.1" so will give slightly lower rpm at a given speed.
It should fit inside the rear fenders and may be enough for ya.

[connie_rider]

Hi Boomer. Good to see yer ugly face. <grin>

My 180/60 - 16 is "squeezed" onto the stock Connie rim (which is narrower than a 180 requires) so it is about 26" tall and about the same width as a 160/80 - 16.

NOTE: I did the install to see if it would prevent the wiggle that some of the Radial tires are doing because the 180/60 has lower/stronger side walls. (You know how I like to experiment)

The result was less wiggle but a tire profile that is similar to the roundness of a front tire.
ie; It turns in QUICKLY!  I love it..

Ride safe, Ted

[Boomer]

Hi Boomer. Good to see yer ugly face. <grin>

Hi Ted, at least I don't hide mine behind hair. <LOL>

My 180/60 - 16 is "squeezed" onto the stock Connie rim (which is narrower than a 180 requires) so it is about 26" tall and about the same width as a 160/80 - 16.

NOTE: I did the install to see if it would prevent the wiggle that some of the Radial tires are doing because the 180/60 has lower/stronger side walls. (You know how I like to experiment)

The result was less wiggle but a tire profile that is similar to the roundness of a front tire.
ie; It turns in QUICKLY!  I love it..

The 180/60-16 normally needs a 4.5" to 5.5" wide rim and the C10 rear rim is 3.5" wide so "squeezed" is right.
I've never felt rear tyre movement on my C10 on any of the radials. What tyre pressures were you running when you felt the wiggle?
That said, I would like a smoother response to turn-in on my C10, more like my C14 with the 190/55-17 rear fitted.
At the moment it requires a bit of effort on initial turn in and then it drops fast, but freeway stability is excellent.

[Stasch]

Maybe just swapping the final drive for a Zg1200 will accomplish the same?

The Rear Drive Gear PN: 42034-0002 is the same for ZG1000, ZG1200, ZG1400, and even some KZ shafty models back into the 80's, so I would think the answer to your question is no.

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See: https://forum.concours.org/index.php?threads/zg1000-and-zg1400-share-same-rear-wheel-coupling.53241/

Part No's:

42034-1011
42034-0002 superceded 42034-1011
42034-0754 2020-2021 ZG1400 (same part? I did not find any reference to this superceding a prior part no. but have been told by a C14 owner who owns C10 and C14 that they are the same)

List by Models:

1979-1980 KZ1000 Shaft
1983-1985 KZ1100 LTD, ZN1100 LTD, KZ1100 Spectre
1983-1986 Voyager ZG1300
1985 KN1100
1985-1986 Eliminator
1986-2003 Voyager ZG1200
1986-2006 Concours 10 - ZG1000
1987-2008 Kawasaki Vulcan VN1500 - 88 - Classic - Mean Streak - Nomad - Drifter
2008-2019 Concours 14 - ZG1400
2020-2021 Concours 14 - ZG1400 (as part no: 42034-0754)
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[Steve in Sunny Fla]

critical thinking... if I could have accomplished the desired gearing change by just bolting on a different final drive, do you think I'd have gone through all the effort to develop the 7th gear unit?

    Steve

[m in sc]

or maybe he'll figure out how to do it a different way that you didn't. why the negative tone?

[Steve in Sunny Fla]

or maybe he'll figure out how to do it a different way that you didn't. why the negative tone?

 

     How can something written have a "tone"? You hear the tone in your  head, it doesn't mean I heard it when I wrote it.

    Steve

[m in sc]

"how can something written have a tone."

Because of the context.

"HA! not even close... now you're going to find out the meaning of "be careful what you wish for"."

I'm sure the tone may have been different to you.... But its def not how it reads to the non-author. 

[Steve in Sunny Fla]

"how can something written have a tone."

Because of the context.

"HA! not even close... now you're going to find out the meaning of "be careful what you wish for"."

I'm sure the tone may have been different to you.... But its def not how it reads to the non-author.

   thanks Mark, I'll be sure to send my posts to you for your approval before they are made public. You know, I have nuked threads worth of my comments because you have chosen to chase me around, and hound me. Let it go, ok?

    Steve

   
                 
           

[Steve in Sunny Fla]

or maybe he'll figure out how to do it a different way that you didn't.

     Mark, you are right that there may be / is more than one way to skin the cat. I know of several approaches to fitting the zg12 gears to the zg1000 housing. I settled on the method I used successfully for apx 150 units based on 1) maintaining overall strength and longevity of the parts; 2) efficiency of using said parts so that a minimum of collars / shims / machining was necessary.
   
So yes, are there other methods? Sure. But also don't forget the OP did make a statement that maybe the 500.00 I charged was high     (actually 450.00)  . I'm quite sure if he can successfully sort this out, he won't think I was overcharging by any measure.

   Steve