Gen 4: Picked up a shock - Kawasaki ZX-10R.net
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post #1 of 18 Old 02-23-2017, 11:40 AM Thread Starter
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Thumbs up Gen 4: Picked up a shock

I believe it was previously used by a team in British Superbikes (maybe Buildbase) and has recently been refreshed.

Has some wear marks, but I'm just happy that it cost me less than half the RRP (RRP is around £1085 - $1360).

I also bought it as I hate the difficulty in adjusting the preload on horizontally mounted shocks.

Hoping to fit this weekend.

Some pics





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post #2 of 18 Old 02-23-2017, 01:25 PM
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BSB Buildbase shock raced with aftermarket swingarm and linkage.
Do you have info what linkage should be used with it?

Gen4 race: high spec.
Suzuki GSX1300R Hayabusa 2013: stock.
Kawasaki KX450F 2016: love it.
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post #3 of 18 Old 02-23-2017, 02:09 PM
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the chance that that shock is setup to a normal link and normal arm is 0.0001%...

you should send it to a good tuner to get it dial to your bike...
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post #4 of 18 Old 02-23-2017, 05:49 PM Thread Starter
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Oh well. Know a good suspension shop that can sort it out.
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post #5 of 18 Old 02-23-2017, 05:59 PM
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What rate spring you have?
What is the shock length, distance between bolt centers?

Gen4 race: high spec.
Suzuki GSX1300R Hayabusa 2013: stock.
Kawasaki KX450F 2016: love it.
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post #6 of 18 Old 02-23-2017, 09:57 PM
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First off congrats on a good find!

And don't let these guys scare you, this is getting way over thought. Put the shock on, take your time to feel/sort the shock out and go from there.

I'm one of the technical service centers/distributors for Bitubo in the US, so if you have any questions let me know and I'll see what I can do.

Good luck!

Stupidity and Motivation are a dangerous combination

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post #7 of 18 Old 02-24-2017, 01:47 AM Thread Starter
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Quote:
Originally Posted by evallarta1 View Post
First off congrats on a good find!

And don't let these guys scare you, this is getting way over thought. Put the shock on, take your time to feel/sort the shock out and go from there.

I'm one of the technical service centers/distributors for Bitubo in the US, so if you have any questions let me know and I'll see what I can do.

Good luck!
Thanks evallarta1.

Yes that was my plan...Fit it, set rear sag and then set damping to Bitubo base recommendations, then see what happens.

I will download the manual for the shock, but would you have any base damping settings you would recommend?

Thanks.
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post #8 of 18 Old 02-24-2017, 08:46 AM
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That is not a good plan.
You save much time, wrenching and frustration if you simply set shock length and preload before installing, while on table.
Belive me there is reason to doubt that numbers on this BSB shock may not be in ballpark for stock bike.

If shock length is way off then you crank some unreasonable preload numbers just to get the bike steering (rear heigth).
Simply set length to 314mm (adjuster near top joint) and check that preload is not far away from 14mm (less for 120 spring, more for 95 spring). To have preload number you find out what is "free length spec" for this spring type and substract spring length "as is" on unloaded shock. Race shocks have stronger topout springs affecting sag much. You get preload number right and then there is no need to measure sag.

Stock link may work ok unless spring (and high speed valving) are light or/and you weight is high, since shock may be at hard side.

Gen4 race: high spec.
Suzuki GSX1300R Hayabusa 2013: stock.
Kawasaki KX450F 2016: love it.
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post #9 of 18 Old 02-24-2017, 10:00 AM Thread Starter
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Quote:
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Belive me there is reason to doubt that numbers on this BSB shock...
Ok you seem to be a dog with a bone on this one...so I confirmed :D

The previous owner raced in BSB Superstock, but the shock was also swapped between a full BSB Superbike.

There were 4 bikes in total (2 of each), and the Superstocks ran Kawasaki stock linkages, whilst the full fat BSB bikes ran linkages supplied by tuning shop and team MSS Colchester Kawasaki.

The shocks were completely compatible between the two. Set up was limited to the controls on the shock. Nobody died :)

You may find something that says you must use this linkage or whatever, but if a guy in BSB superstock has no problems setting laptimes I can only dream about, I should have no problem.

Cheers for your input anyway...Always best to know such information especially as I plan to race the bike.
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post #10 of 18 Old 02-24-2017, 11:07 AM
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Quote:
Originally Posted by 10Arghh View Post
Thanks evallarta1.

Yes that was my plan...Fit it, set rear sag and then set damping to Bitubo base recommendations, then see what happens.

I will download the manual for the shock, but would you have any base damping settings you would recommend?

Thanks.
Without really knowing too much about your bike, geometry numbers, pace, tracks etc I can only tell you that Bitubo shocks out of the box work pretty damn well. Short of messing with preload to get the bike balanced I really don't have to touch damping settings. In case you're lazy here are the stock specs.

Reb - 18 clicks out
Comp - 10 clicks out
HS Comp - 10 clicks out
Length - 310 mm
10kg spring at 14mm of preload.
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Last edited by evallarta1; 02-24-2017 at 11:11 AM.
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