Kawasaki Ninja ZX Forum banner

Project: Suspension Upgrade

75K views 199 replies 28 participants last post by  Pyke13  
#1 · (Edited)
ZX10R suspension upgrade, to be precise.

So I’ve been considering a suspension upgrade for some time. The 7r suspension seems to pale in comparison to the performance of the newer bikes, if not in performance, then at least in adjustability.

Two winters ago I completely rebuilt both of my front forks only to find that one now has a slow leak (probably due to me attempt to install the seal without the proper tools. Lesson learned.) I also need new tires.
Rather than purchase the parts to replace that same seal again, and spoon new Q2s onto my 7r wheels, I’ve decided that if an upgrade is to take place, it may as well happen now.

I’ve decided to go with a full gen 3 (2008 – 2010) zx10r suspension front and rear. This will include forks, wheels, swing arm, shock, brakes and rotors (along with the peripherals). My bike will essentially be a 7r from the frame in, and a 10r from the front triple forward, and the swing arm pivot bolt back.

I’ve been collecting the components necessary for the swap (minus any custom spacers/ fab stuff) since early May and have tried to be patient. I got really lucky on a couple finds, and not so lucky on others (had to pay $$$). It all came down to availability and time frame.
Let the fun begin:


Image


Image


Image


Image


Image


Image


Image


Image


Image



The real kicker: Gen 3 forks with Race Tech G2r cartridge kits already installed. Fresh from Race Tech with zero miles on them. I am unworthy.

Image


Image
 
#2 · (Edited)
This is for the 02?(Just kidding, I see the sold part in the "I ride:") I'm like you where I've been interested in doing this, and I'll be at that point some day. So... I might as well learn about it now. I know the zx7's and zx9's are enough alike that I could probably follow your lead.


No zx10 tail? :angry :lol just kidding
 
#3 ·
Had my gf shoot some “pre” pics the other day so I’ll have some basis for comparison. She’s got the camera for it.

I’m going to try to be as thorough as possible while documenting this whole thing. Hopefully it will make it easier for someone else if/when they decide to take the plunge. If nothing else they’ll know what they’re getting into.

I’ve already weighed all of the 10r parts and will be weighing all of the 7r parts as they’re removed. I’ll be getting overall before/after weight measurements as well. I’m not too concerned but some people really get into the whole weight reduction thing.

I’ll post as many measurements as I can as well as record specs/measurements of any parts that need machined or fabbed up.

If you have any questions or need any measurements, now’s the time to ask since everything will be apart.



Image


Image


Image


Image


Image


Image


Image


Image


Image



Figured I’d squeeze a few “for fun” shots in there as well. :smile




Image


Image


Image
 
#7 ·
No, everything will be swapped over to Gen 3 zx10r parts: forks, wheels, swing arm, shock, brakes, etc.

The pics I posted are my "before" pics. Nothing has been done yet (other than buying the parts). Sorry for any confusion.
 
#8 ·
I was hoping to get a start on it today but that may not happen now. Had a bunch of yard work to do.

I don't like the idea of taking a bike down mid-season but if I do it now it would give me some time to fine tune any suspension issues toward the end of the summer and fall.

It should come together pretty quickly but I've worked through too many projects to realistically expect that.
 
#11 ·
Well, He has RaceTech Mod Gen 3 forks.....just they are nice and an upgrade from not only ZX7, but from stock 10r, plus allow radial brakes.
But a stock gen 3 may or may not be an upgrade, depending on what you have, and it only affects suspension, not braking too (not that rear matters).
plus you throw in the variables that the swingarm affects: suspension geometries, linkage ratios (on this bike alone there were several that were considered the best, and the teams were secretive about the ratios that worked best and photos were prohibited), chainline, etc. Not to mention weight.
I don't know, I guess it depends on usage, etc and what you are trying to achieve. For a visual and street perspective this may be a move upward. I assume that even for that directive, a modified Gen 3 shock would fit the objective well......
 
#12 ·
well, mine is for a street/track bike, and considering my original is a 15 year old, 60K miles shock with an absolutely positively completely stuck preload adjuster, I guess it's a step up :)
for a moment I was worried I missed something..

Joe, now I am back to reading your stuff :):thumbup
 
#14 ·
A few dimensions of the zx10 swingarm would be interesting.

1. Width of the arm at the pivot.
2. Inner width of the arm at the wheel
3. length of the arm from front pivot (on center) to the edge of the opening at the rear where the bolt goes through the wheel, sprocket and arm. Or in other words, difference in length compared to the zx7r arm.
4. Weight of the arm.
 
#15 ·
I have 3 and 4 already:

3. The 10r swing arm is almost exactly 1" longer that the 7r swing arm. I can probably get a more exact/confirmation measurement for you next time I'm at the garage.

4. The zx10r swing arm (with pivot axle) weighs 12.5 lbs. according to my scale.


I'll get 1 and 2 for you next time I get to log some garage time.
 
#16 ·
Looks like you and I may have been doing some bidding against each other on this stuff. LOL
I have an 97 Zx7, and both 04 and 08 Zx10 Swing Arms. The measurements from Pivot to the beginning of the rear wheel bolt slot are as follows...

96 Zx7----- 20.5 Inches
04 Zx10----21.5 Inches
08 ZX10-----21.0 Inches

I have everything for the rear working on the front now.

I have heard that the 08 Swingarm will hit the rear subframe......Your experience will be helpful. The 08 is about 1 inch taller then the 04 Swingarm.
 
#17 ·
You have the same measurements on the 08 swingarm that I do, .5" longer. I am putting one on my 01 ZX9R right now. I am also putting on 2011 ZX6R big piston forks on the 9R as well.

Yes, 08 swingarm will hit the subframe (I had another 08 on a 96 ZX7R). Time to get out that aluminum welder and lighten that subframe up while you make it clear the swingarm!
 
#18 ·
I'm just looking for any measurements of spacers and whatever else needs to be done as far as machining wise outside of the zx10 parts that need to be bought for both front and rear. If I decide to go this route in the next few months, I'd like all the relevant info somewhere so I don't have to try and figure it all out on my own since I don't have really accurate measuring tools to try and figure out how big or small things need to be like spacers and what not. I don't mind wrenching at all as long as there's a "how to" on tap ya know.
 
#26 ·
Nothing wrong with a little project. Even if it's a big project.

Like only Joe can do.

Looking forward to how this turns out. So far, so good. :clap
 
#30 ·
I have some yard work to do tomorrow and then I hope to be tearing the front triple apart for the swap.

How hard are those bearing races to press off? Thinking I may need to take them to work with me to use the hydraulic press but I'd like to avoid that if possible.
 
#31 ·
Shoe-horned a bit of garage time into today's schedule. Here's what I got done in > 1hr:







Here are the the two triples side by side: The zx10r and the zx7r

I really don't feel like dragging this shit with me to work so I'm pretty sure I'll be picking up a 20 ton shop press tomorrow... I could borrow tools but why if I'll probably need them later anyway

Sure as hell haven't gotten a lot of feed back as far as process on this whole deal, so I guess I'm on my own. I'll make it happen like I usually do.

On the plus side, I have a god weld/fab guy on stand-by in case I need some work done. I don't own a TIG welder (wish I did). Next best thing is knowing a guy who used to own his own fab shop and now happens to work in the same company as you and on the same shift. ;-)



 
#34 ·
If you use the zx7 tapered roller bearing and races in your swap, its damn near a direct swap. The zx6 (636), you'll need a .335" spacer with a step on it for for preload, and another .100" shim on top directly below the upper clamp.

The two bikes ive done these swaps on, the 10 triple tree is a basically a straight swap if the tapered bearings are used.

Just my two cents.. :)

Sent from Motorcycle.com Free App
 
#38 ·
You're very welcome.

Thanks a ton for the link. I hadn't seen that one. It is now bookmarked.

I did as much research as I could before buying parts. Prior to starting the biggest question marks were doing up the front triple correctly so that things mount up right, and figuring out what kind of (if any) spacers I'll need for the 10r swing arm pivot.

Now apparently I may have a swing arm clearance issue according to what I've read. Got my TIG welder on stand-by. It's going in come hell or high water.:evil
 
#39 ·
I'll do the best I can and take as many pics as I can. Just picked up a 20 ton press to remove the tapered roller bearing races properly. Should be able to move forward once that assembled and so on.

Hit me up if you need any additional specs or measurements (or more precise measurements). I'm planning on measuring, weighing, and documenting everything that I can for the record and the future use of others.
 
#40 ·
Just received my Gear Wrench tap and die kit (74 pc set) and my Driven chain tool kit in the mail.

Still need to assemble my shop press before things can move forward. Hoping to get some garage time in very soon. My damn grass won't stop growing though. And my job seems to want me to be there on a regular basis, something about 40 hours, I tried to negotiate but they won't budge.
 
#41 · (Edited)
Joe, How did you connect (plan to connect?) the 10r linkage to the frame?

I am doing only a shock and link swap, but today went to 2 different workshops and neither one were willing to drill the hardened steel bearing sleeve on the link to frame side. on the 10r it's 10mm and on the 7r it's 12 mm bolt..

is there something I am missing here?
 
#42 ·
Wish I could help you out. I'll be completing the front end before I begin work on the swing arm. Guess I'll cross that bridge when I get there. I'm sure there are quite a few options in terms of routes to go.

Perhaps 57x could chime in on this one? I believe he's done it before.
 
#43 ·
Finally got into the garage on Thursday. I just stayed up from my Wednesday night shift (3rd shift), came home, mowed the yard, and hauled a$$ to the garage.

Got my 20 ton shop press assembled.

Image


Also received my GearWrench tap and die kit as well as my Driven chain break tool.

Image


Pressed the 7r and 10r triples apart. Here they are side by side...


Image



...However, I managed to eff up the lower tapered roller bearing and seal for the 7r triple. So I ordered some new ones (All Balls Racing makes a kit).

Image


Just a note. The top and bottom tapered roller bearings for the 7r triple are not exactly the same thing, there is a small difference.

Image



With the bearing swap now, apparently, at a stand still, I'm moving on with trying to get me selected upper triple (2008 zx6r) to be compatible with my ignition switch which requires some cutting, drilling, tapping, etc. Here's about the angle I was looking to cut at. It ended up needing approx. 15mm shaved off if you want the top of the ignition to be anywhere near flush.

Image


Broke one of my taps in the process (already), but I continued by doing some careful filing and adjusting. Here's where I'm at so far.

Image



I used some grommets and a piece of tubing to mock up about how I'd like to see the ignition to sit in the triple.... Pretty close.

Image



Here's the zx7r triple and the '08 zx6r triple together. The 6r triple is closer in diameter to work with the 10r steering stem but it will need opened up slightly to be compatible (don't have any measurements yet... Tomorrow.)

Image




Last but certainly not least the official "brew of the build" for the day at least. Dogfish Head's Midas Touch. GREAT summer beer!

Image
 
#44 ·
Worked on getting the posts for the ignition mount on the zx6r upper triple set up correctly. They will need redrilled and tapped. Wish I had an end mill. All hand filing, Dremeling, sanding, and careful measurement with a micrometer here.


Image


Image


Image


Image






I should be back in the garage again today for a bit. I'd like to start on the rear of the bike while I wait for my new bearings and seals but I'll have to get creative about how to support the bike.
 
#48 ·
Good stuff man!
Yes sir! Moving forward.



I'm curious to know the weight of the zx7r arm, if it's not too much trouble.
Absolutely. I was planning on getting a bunch of weights (swing arm, forks, shock and linkage, etc.) next time I get in to do some work. Possibly tomorrow, most likely Tuesday evening.