Gen 4 handling issue - Kawasaki ZX-10R.net
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post #1 of 22 Old 05-21-2016, 02:07 AM Thread Starter
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Gen 4 handling issue

Got my bike last november with bridgestone tyres and when cranked right over i kept getting the back tyre slipping out so i fitted sc2 tyres.
But still had few slips and on the gas little slides coming out of corners.
So checked the setup and found the rear end too soft compared to the front.
Made some adjustments so bike goes up and down evely plus i fitted a sc1 rear tyre.
Went out yesterday to try build up my confidence coz i wanted to do trackday tuesday but its still twitching every now and again.
Especially on slower corners.
The front end is great and i can push it quite hard but ive got no confidence with the rear end.
In fact i cant think of a rear end thats given me so little confidence on all the bikes ive owned.
Im 14.5 stone uk. The spring is not fully wound up but its towards that way to get the bike to compress evenly but is there anyone simular build who can offer set up advice for full lean angle grip please?
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post #2 of 22 Old 05-21-2016, 10:31 AM
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What is your comp and reb in the rear set at? Also have you changed geometry at all? You mention it's "twitchy", can you elaborate more? And when the bike slides out are you real heavy on the throttle or are you just cracking open the throttle or maintenance?

Also when you added preload to the spring did it make it better or worse?
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post #3 of 22 Old 05-21-2016, 03:42 PM Thread Starter
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Originally Posted by evallarta1 View Post
What is your comp and reb in the rear set at? Also have you changed geometry at all? You mention it's "twitchy", can you elaborate more? And when the bike slides out are you real heavy on the throttle or are you just cracking open the throttle or maintenance?

Also when you added preload to the spring did it make it better or worse?
Well basically theres a set of bends near me where i take all my bikes to get a general feel of their handling.
Straight away as soon as i was leaning the bike over it skipped out at the back a couple of times which i thought was odd on both nutral and full throttle.
Put it down to cool weather and standard tyres.
Then i went round a roundabout with my sc2 tyre on and with nutraul throttle on and it slid out again.
I ignored it and kept it cranked over and it didnt do it again.
Then a slip on the power out of a corner.
Also with the sc1 tyre on even when warmed up the rear still breaks traction momentarily which all in all means i am now nurvous on it and cant get my confidence anywhere near where it was with the gen 1 i just sold.
Im not sure on comp settings as im just playing around with it trying to make it feel better.
Its feels better in other areas since ive stiffened up the rear spring but the edge grip seems to still be and issue
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post #4 of 22 Old 05-21-2016, 04:06 PM
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I find the front of the g4 doesn't want to turn, I've never had the rear really step out on me.ive never messed with the settings.whats your tire pressure?
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post #5 of 22 Old 05-22-2016, 01:57 PM Thread Starter
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I find the front of the g4 doesn't want to turn, I've never had the rear really step out on me.ive never messed with the settings.whats your tire pressure?
How odd coz i really like the front end feel. I do think its very importand to be hanging off lorenzo style to make it work well. Ive noticed if i sit normally upright and cruise about it doesnt turn as well.
Ive tried 35 psi and under for road. Yesterday i lowered it to high 20s but didnt feel much better.
But i thought my bike was standard and untouched but i noticed today my high speed compression was almost on full so someones played with it. To be honest im not sure the shock is any good. From all settings wound full off it doesnt seem any different to full on when im bouncing it by hand

Last edited by ukzx10r; 05-22-2016 at 02:00 PM.
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post #6 of 22 Old 05-22-2016, 02:46 PM
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Originally Posted by ukzx10r View Post
How odd coz i really like the front end feel. I do think its very importand to be hanging off lorenzo style to make it work well. Ive noticed if i sit normally upright and cruise about it doesnt turn as well.
Ive tried 35 psi and under for road. Yesterday i lowered it to high 20s but didnt feel much better.
But i thought my bike was standard and untouched but i noticed today my high speed compression was almost on full so someones played with it. To be honest im not sure the shock is any good. From all settings wound full off it doesnt seem any different to full on when im bouncing it by hand

You need face time with a pro....
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post #7 of 22 Old 05-22-2016, 02:55 PM
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I find the front of the g4 doesn't want to turn, I've never had the rear really step out on me.ive never messed with the settings.whats your tire pressure?
Not correct perception and I know your point. Can't remember which tire on the front but I DO remember exactly what I had to change: I went to a concentrated BOTH grips used to flick. So for a right I'd snap both grips, left grip in and right grip out. That bike flicks. After a couple of turns I never noticed the problem again. I adjusted, or brain adjusted, whatever.
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post #8 of 22 Old 05-22-2016, 02:57 PM
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You need face time with a pro....
Just superbike classes is all. Not complicated. I encountered riders that are old and gray and been on bikes since a child yet never had a clue until they finally read Code's work or learned to stop the pride bullshit and take a superbike class.
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post #9 of 22 Old 05-22-2016, 03:11 PM
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Originally Posted by ukzx10r View Post
How odd coz i really like the front end feel. I do think its very importand to be hanging off lorenzo style to make it work well. Ive noticed if i sit normally upright and cruise about it doesnt turn as well.
Ive tried 35 psi and under for road. Yesterday i lowered it to high 20s but didnt feel much better.
But i thought my bike was standard and untouched but i noticed today my high speed compression was almost on full so someones played with it. To be honest im not sure the shock is any good. From all settings wound full off it doesnt seem any different to full on when im bouncing it by hand
g4 is out of the box hot bike. 203 pounds in American speak is heavy. Research your Newton for the math.
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post #10 of 22 Old 05-26-2016, 12:47 AM Thread Starter
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Well i did a track day and had suspension specialist look at it.
He said front is good enough to race on but back is very poor and with damping fully on it barely works. He said its quite common on gen4 to barely damp as standard.
But i pushed the front very hard and i was pretty quick on it straight away. Still looking for shock upgrade...
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