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-   -   Gen 5: Gen5 rear suspention link info needed (http://www.zx-10r.net/forum/f23/gen5-rear-suspention-link-info-needed-303658.html)

Carlos76 03-13-2017 05:57 PM

Quote:

Originally Posted by 300ZX10R (Post 4319266)
My shock was revalved for drag use so the rebound is "slower" that stock and for road use is not what I want.
The good thing is that the revalved shock is my spare shock so I have one stock gen4 shock sitting.
It's not an easy job to change shock after every race.
So can I fix that with linkage plates?

I would quess that theoretically improvement with plates is possible in your case.
If you make custom plates where measurement B (see post #1) is 10-12mm longer then what happens is that whole linkage system will be "stronger".
This causes dampings and spring acting "weaker". Linkage will have more "power" to overcome slow rebound and at the same time weaken comression and spring.
All this is theory, in practical application the outcome may or may not be good, because superbikes are very sensitive to these kind of changes.
Linkage ratio in this case will be somewhere arround 2.6 while 2.1 is "sweet" design number for sportbikes.
Loads of work to try that out, hole pattern must set rear heigth exactly correct, if not then flat or steep swingarm angle makes rear ill.
Warning: use of wrong material or some adjustable dogbone may get you killed.

blitze 03-14-2017 07:58 AM

Query:
If swapping out Gen 4 links with Gen 5 OEM links, do you need to also swap out the dogbone from Gen 4 to Gen 5?

This for either keeping Gen 4 shock or moving to either OEM Gen 5 Shock or Gen 5 aftermarket shock?

Confusing but interesting to know for future upgrade purpose.

Thanks.

Carlos76 03-14-2017 09:35 AM

Quote:

Originally Posted by blitze (Post 4319506)
Query:
If swapping out Gen 4 links with Gen 5 OEM links, do you need to also swap out the dogbone from Gen 4 to Gen 5?

Yes. Gen5 link plates require Gen5 dogbone (longer).

Quote:

Originally Posted by blitze (Post 4319506)
Query:
This for either keeping Gen 4 shock or moving to either OEM Gen 5 Shock or Gen 5 aftermarket shock?
Confusing but interesting to know for future upgrade purpose.

Using Gen5 link with Gen4 shock makes system harder, now you have like 120 spring istead of 110, more compression and rebound damping. This could be bandaid fix for weak Gen4 stock shock rebound, but requires lighter spring for light rider.

Using Gen5 link and Gen5 shock you should get roughly same rear end as Gen5, minor bit harder, since swingarm is shorter.

Using Gen5 aftermarket shock you use Gen5 link too, with gen4 link system will be too soft.

Using Gen4 aftermarket shock you must find out if it is valved for gen4 stock shock or already revalved for aftermarket link (MSS, Kyle, Attack), in this case you use gen5 link because it is very similar to MSS links.

I use Gen4 aftermarket shock (what is revalved for aftermarket link) and Gen5 link. Never tried stock shock in any configuration.

blitze 03-15-2017 08:51 AM

Carlos, thanks for the extensive reply.

Gives me good info for future rear end upgrade path. ))

ukzx10r 03-20-2017 02:35 AM

Quote:

Originally Posted by 300ZX10R (Post 4319266)
My shock was revalved for drag use so the rebound is "slower" that stock and for road use is not what I want.
The good thing is that the revalved shock is my spare shock so I have one stock gen4 shock sitting.
It's not an easy job to change shock after every race.
So can I fix that with linkage plates?

So are you running stock gen4 plates?

300ZX10R 03-20-2017 04:48 PM

Thanks for the advice Carlos76 , you definitely know what you are talking about.
If I make plates it will only be from 7075 alluminium.

ukzx10r yes I use the gen4 plates with adjustable dog bone.

Lanister 04-27-2017 04:54 PM

Quote:

Originally Posted by BOP Leader (Post 4163362)
Gen5 Shock matches with gen5 links. Even though you have access to machines to make your own links and dog bone, why go through the design, programming and setups when you can buy everything for £150. And if you cut your own you still have to source inner parts for the dog bone.

Just seems like a lot of work unless you plan to make a batch.

Is it hard to transfer the inner parts from the stock over to the new link?

Porschenut 04-27-2017 07:23 PM

I just priced out a new Gen 5 dogbone along with the necessary bushings and seals. In Canada those parts total about $150 so probably around $110ish in the states?

So to reiterate Lanister's question...is there any possibility of gutting a Gen 4 dogbone without destroying the bushings and seals and transplanting them into a new Gen 5 dogbone? The Gen 5 dogbone was only $70 CAN so approx. $45-50 US$.

ukzx10r 04-29-2017 01:13 PM

I got a gen5 complete link and shock on my gen4 now with a 110 spring. Yet to track it but on the road it feels geat for my weight.
Got the link new off ebay but they are hard to find as most people wont need to change them.

Porschenut 05-02-2017 03:15 PM

I ordered a used Gen 4 dogbone off eBay ($12 USD)and will see if I can remove the guts without damaging them. I'm sure it's more hassle than it's worth, but if it works I'll have a complete Gen 5 dogbone for about $70 USD as opposed to about $120.


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