Kawasaki ZX-10R Forum banner

1 - 20 of 39 Posts

·
Registered
Joined
·
424 Posts
Discussion Starter #1
Hi guys, i've previously owned a 2008 zx10 so know how the bike rides, but can't get my new one to feel stable at low speeds. Feels like the front wants to fold in/ is oversteering in a big way on slow turns and roundabouts etc. I'm having to really countersteer to keep it on line. I've had a good 'play around' with the front susp settings (i'm not pro but have a good understanding) but nothing seems to cure this feeling. Anyone else had what i've described, and if so what did you do?? My first 08 zx10 never felt like this!!
 

·
Registered
Joined
·
45 Posts
Hi guys, i've previously owned a 2008 zx10 so know how the bike rides, but can't get my new one to feel stable at low speeds. Feels like the front wants to fold in/ is oversteering in a big way on slow turns and roundabouts etc. I'm having to really countersteer to keep it on line. I've had a good 'play around' with the front susp settings (i'm not pro but have a good understanding) but nothing seems to cure this feeling. Anyone else had what i've described, and if so what did you do?? My first 08 zx10 never felt like this!!
Might be a dumb question..but did you buy the bike new? If not, were there any geometrical changes made by the previous owner?
 

·
Registered
Joined
·
424 Posts
Discussion Starter #5
Might be a dumb question..but did you buy the bike new? If not, were there any geometrical changes made by the previous owner?
Not a dumb question at all. I'm the 2nd owner and checked every single thing was stock the day i had it delivered. Previous guy didn't touch a thing.
 

·
Registered
Joined
·
424 Posts
Discussion Starter #6
Might be a dumb question..but did you buy the bike new? If not, were there any geometrical changes made by the previous owner?
Am the 2nd owner but checked the bike the day i had it delivered to make sure it was 100% stock.
 

·
Banned
Joined
·
2,838 Posts
As per the handbook. 42/36. And i've checked them. Always run at the reccomended pressures on Corsa 3's and 2CT's with no probs
PSI is too high no matter what tire your running! lower it 5 PSI less depending on the tire brand, I run 2CT's on the street and run 31PSI front for hard riding.
Next how raised are your forks in the triples from the bottom of the cap {just the gold}i.e, how lowered is the front}} next what do you have your rebound set at? if it's too stiff you could be getting what is called "packing" that will make your font end tuck!
 

·
Registered
Joined
·
3,318 Posts
PSI is too high no matter what tire your running! lower it 5 PSI less depending on the tire brand, I run 2CT's on the street and run 31PSI front for hard riding.
Next how raised are your forks in the triples from the bottom of the cap {just the gold}i.e, how lowered is the front}} next what do you have your rebound set at? if it's too stiff you could be getting what is called "packing" that will make your font end tuck!
That's where I was going with air pressure. I run even lower than that 29F 27R.

I thik before anything can be recommended please post up your current settings as well as weight and you can probably get some better feedback.
 

·
Registered
Joined
·
95 Posts
I had the same problem on Corsa 3's and it was an air pressure issue as other mentioned might be the case.
I set the front to 31 and it felt much better.

How many miles are on the tires?
 

·
Registered
Joined
·
424 Posts
Discussion Starter #10
PSI is too high no matter what tire your running! lower it 5 PSI less depending on the tire brand, I run 2CT's on the street and run 31PSI front for hard riding.
Next how raised are your forks in the triples from the bottom of the cap {just the gold}i.e, how lowered is the front}} next what do you have your rebound set at? if it's too stiff you could be getting what is called "packing" that will make your font end tuck!
Forks are set at standard height. I've not touched them (few mm showing) My rebound is 8 clicks out from fully seated and my compression is also standard. When you say too stiff, i assume you mean lack of damping so the forks are coming up too quick?
 

·
Registered
Joined
·
424 Posts
Discussion Starter #11
That's where I was going with air pressure. I run even lower than that 29F 27R.

I thik before anything can be recommended please post up your current settings as well as weight and you can probably get some better feedback.
Best thing for me to do by the sounds of it is drop my tyre pressure a few psi. Been riding for some years now and have never done that but nice one. I'll give it a go. Fingers crossed it's this simple!! Thanks man.
 

·
Registered
Joined
·
424 Posts
Discussion Starter #12
I had the same problem on Corsa 3's and it was an air pressure issue as other mentioned might be the case.
I set the front to 31 and it felt much better.

How many miles are on the tires?
1300 miles, good condition. I'll set the front to 31 and see how it goes. Cheers
 

·
Banned
Joined
·
2,838 Posts
Forks are set at standard height. I've not touched them (few mm showing) My rebound is 8 clicks out from fully seated and my compression is also standard. When you say too stiff, i assume you mean lack of damping so the forks are coming up too quick?
no too much rebound damping is.. there going down to slow, so the tire is spending to much time in the air causing your front end to "pack" making the front end fall! but if your rebound is 8 clicks out from "full in" it may not be that! may just be psi
 

·
Registered
Joined
·
424 Posts
Discussion Starter #14
no too much rebound damping is.. there going down to slow, so the tire is spending to much time in the air causing your front end to "pack" making the front end fall! but if your rebound is 8 clicks out from "full in" it may not be that! may just be psi
Cool, thanks for your quick replys. I'll get onto the tyre pressures and hope for the best.
 

·
Registered
Joined
·
3,318 Posts
no too much rebound damping is.. there going down to slow, so the tire is spending to much time in the air causing your front end to "pack" making the front end fall! but if your rebound is 8 clicks out from "full in" it may not be that! may just be psi
I'm thinking the PSI will make a huge difference.
 

·
Registered
Joined
·
3,318 Posts
According to the official Kawasaki 08 Suspension Manual the following air pressures are recommended.

MANUFACTURER MODEL/SIZE/RECOMMENDED AIR PRESSURE
• DUNLOP
F: SPORTMAX GP-R4 120/70ZR17M/C (58W) TL 200kPa {2.0kgf/cm2}
R: SPORTMAX GP-R4 190/55ZR17M/C (75W) TL 200kPa {2.0kgf/cm2}
F: SPORTMAX Qualifier RR Front 120/70ZR17M/C (58W) TL 210kPa {2.1kgf/cm2}
R: SPORTMAX Qualifier RR 190/55ZR17M/C (75W) TL 200kPa {2.0kgf/cm2}
F: SPORTMAX GP Racer D209 M Front 120/70ZR17M/C (58W) TL 200kPa {2.0kgf/cm2}
R: SPORTMAX GP Racer D209 E 190/55ZR17M/C (75W) TL 160kPa {1.6kgf/cm2}

• BRIDGESTONE
F: BATTLAX BT-002 TYPE 3 120/70ZR17M/C (58V) TL 200kPa {2.0kgf/cm2}
R: BATTLAX BT-002 TYPE 3 190/55ZR17M/C (75V) TL 200kPa {2.0kgf/cm2}

• PIRELLI
F: DIABLO SUPERCORSA SC2 120/70ZR17M/C (58W) TL 200kPa {2.0kgf/cm2}
R: DIABLO SUPERCORSA SC2 190/55ZR17M/C (75W) TL 200kPa {2.0kgf/cm2}
F: DRAGON SUPERCORSA Pro Front SC2 120/70ZR17M/C (58W) TL 210kPa {2.1kgf/cm2}
R: DRAGON SUPERCORSA Pro SC2 190/55ZR17M/C (75W) TL 190kPa {1.9kgf/cm2}

• METZELER
F: RACE TEC K3 Front 120/70ZR17M/C (58W) TL 210kPa {2.1kgf/cm2}
R: RACE TEC K3 190/55ZR17M/C (75W) TL 190kPa {1.9kgf/cm2}
• CONTINENTAL

F: CONTI RACE ATTACK Comp. Soft 120/70ZR17M/C (58W) TL 200kPa {2.0kgf/cm2}
R: CONTI RACE ATTACK Comp. Medium 190/55ZR17M/C (75W) TL 170kPa {1.7kgf/cm2}
F: CONTI RACE ATTACK Comp. Soft 120/70ZR17M/C (58W) TL 200kPa {2.0kgf/cm2}
R: CONTI RACE ATTACK Comp. Soft 190/55ZR17M/C (75W) TL 160kPa {1.6kgf/cm2}


Use Google to convert kPa to PSI by typing in Google like this;

How much is 200kPa in PSI? (= 29PSI)

As you can see, those who are telling you to reduce your air pressure are correct.
You a smarty pants.
I would have gone to see our engineers downstairs but I am too lazy.
 

·
Registered
Joined
·
424 Posts
Discussion Starter #17
According to the official Kawasaki 08 Suspension Manual the following air pressures are recommended.

MANUFACTURER MODEL/SIZE/RECOMMENDED AIR PRESSURE
• DUNLOP
F: SPORTMAX GP-R4 120/70ZR17M/C (58W) TL 200kPa {2.0kgf/cm2}
R: SPORTMAX GP-R4 190/55ZR17M/C (75W) TL 200kPa {2.0kgf/cm2}
F: SPORTMAX Qualifier RR Front 120/70ZR17M/C (58W) TL 210kPa {2.1kgf/cm2}
R: SPORTMAX Qualifier RR 190/55ZR17M/C (75W) TL 200kPa {2.0kgf/cm2}
F: SPORTMAX GP Racer D209 M Front 120/70ZR17M/C (58W) TL 200kPa {2.0kgf/cm2}
R: SPORTMAX GP Racer D209 E 190/55ZR17M/C (75W) TL 160kPa {1.6kgf/cm2}

• BRIDGESTONE
F: BATTLAX BT-002 TYPE 3 120/70ZR17M/C (58V) TL 200kPa {2.0kgf/cm2}
R: BATTLAX BT-002 TYPE 3 190/55ZR17M/C (75V) TL 200kPa {2.0kgf/cm2}

• PIRELLI
F: DIABLO SUPERCORSA SC2 120/70ZR17M/C (58W) TL 200kPa {2.0kgf/cm2}
R: DIABLO SUPERCORSA SC2 190/55ZR17M/C (75W) TL 200kPa {2.0kgf/cm2}
F: DRAGON SUPERCORSA Pro Front SC2 120/70ZR17M/C (58W) TL 210kPa {2.1kgf/cm2}
R: DRAGON SUPERCORSA Pro SC2 190/55ZR17M/C (75W) TL 190kPa {1.9kgf/cm2}

• METZELER
F: RACE TEC K3 Front 120/70ZR17M/C (58W) TL 210kPa {2.1kgf/cm2}
R: RACE TEC K3 190/55ZR17M/C (75W) TL 190kPa {1.9kgf/cm2}
• CONTINENTAL

F: CONTI RACE ATTACK Comp. Soft 120/70ZR17M/C (58W) TL 200kPa {2.0kgf/cm2}
R: CONTI RACE ATTACK Comp. Medium 190/55ZR17M/C (75W) TL 170kPa {1.7kgf/cm2}
F: CONTI RACE ATTACK Comp. Soft 120/70ZR17M/C (58W) TL 200kPa {2.0kgf/cm2}
R: CONTI RACE ATTACK Comp. Soft 190/55ZR17M/C (75W) TL 160kPa {1.6kgf/cm2}


Use Google to convert kPa to PSI by typing in Google like this;

How much is 200kPa in PSI? (= 29PSI)

As you can see, those who are telling you to reduce your air pressure are correct.
Nice bit of info thanks very much. Couple of questions. Are the Diablo Supercorsa's pressures that are listed the same as Diablo Corsa III's that i'm running and are those pressures reccomended for track or fast road or all riding? Also without sounding funny, why is this the first time i'm having an issue with tyre pressures? I've ridden sports bikes for 10 years now on Dunlops, Bridgestone, Michelin, Avon and Pirelli. Always running at handbooks guideline pressures and with a little suspension fettling never had any handling problems.
 

·
Banned
Joined
·
2,838 Posts
Your putting to much into what PSI is , does….. PSI is NOT a hard fast rule rather it does one thing and one thing only, PSI SETS TIRE TEMP! That’s all it does! you are way better off having a “laser temp gage” over a PSI gage! If your tire is running too cold...drop PSI… too hot increase PSI.. toss what you think PSI does out the window and only think of PSI as a thermostat knob for the tires!
 

·
Registered
Joined
·
3,318 Posts
Tire pressure is so important - this one I ran a little under inflated @ 24 psi and you can see the discoloration in the shoulder after a couple of street rides.
 

Attachments

1 - 20 of 39 Posts
Top