PNW Riders

TheFactor · 07-16-2009, 10:19 PM

Well my rear tire has some strange wear its rolling over the back edge and just has strange wear patterns as i've noticed and been told . So is my suspension to soft , to hard ? My tire pressure was at 32psi which is what parelli recommended. I plan on taking it in to have the suspension setup again but wanted some different oppinions on whats going and maybe if I can just tweak it a little my self. I just dont want to make it worse, the bike did feel good to me and felt planted but the rear tire just looked strange. I know I didnt get it down to the edge yet but I'll work on it my next track day

heres a few pics

Nicegy525 · 07-16-2009, 10:27 PM

more rebound! (assuming youve already done the baseline set-up sag, compression etc)

little bit more pressure in the rear (like 1-2 psi) might help the tread cupping.

but not bad for track tire wear. Ive definitely seen worse.

rolandk · 07-16-2009, 10:36 PM

Have your bike set up by a suspension professional. Its really worth the $40-ish they charge. Barry Wressel is a genious (he was at the track yesterday) and does setups at EDR several times a year.

mjn · 07-16-2009, 10:37 PM

Please take this opinion with a grain of salt, as I'm no racer, and have done a whoppin ONE track day... '

BUT;
For one track day....that tire looks DAMN good to me!

Armand · 07-16-2009, 11:17 PM

Clay pointed out to me that I had the same sort of issue so I took it to barry w and he said I had tooo much rebound and was making my tire skip. Quick adjustment and it felt as good as new

Mjn look at the 2nd pic and you'll notice its split into sections that look sort of like // all down the side of the tire. Constant smooth and rough sections. My tire had the same but my rough spots were longer than his, so I'm assuming mine slipped for longer periods of time ? Dunno

FZ6Rider · 07-16-2009, 11:19 PM

fail! double post.

btw, mine doesnt have chicken strip

I'm a bit surprised how well street deablos did at the track. I will run them again

than look at something else. I just hope my tire will have enough life in it for one more track day.

Armand · 07-16-2009, 11:24 PM

Originally Posted by FZ6Rider

fail! double post.

btw, mine doesnt have chicken strip

I'm a bit surprised how well street deablos did at the track. I will run them again

than look at something else. I just hope my tire will have enough life in it for one more track day.

double post ? where ?

blame it on the cell phone since I posted from there lol

Soil · 07-16-2009, 11:29 PM

Depending on who you bought the tires from -

But - Tom Young (the Pirelli guy on site almost all the time) tweaked my pressure and suspension throughout the day... and made my ride PERFECT!

the bad news I've been letting people know when they ask - there is no magic setting for your bike. EVERYTHING can affect how your bike rides... which in turn affects how your suspension needs to be tweaked. Those tires don't look 'bad' - and most of us (including me) wouldn't even notice a difference in what Tom did to my bike to get rid of those slight tears. I DIDN'T notice any difference in what I felt, but the tires 'cleaned up' after two adjustments.

BUT - you put on 5 pounds (or loose it), you buy new tires, or -heaven forbid here in Oregon, the temperature is 10-15 degrees different between track days; all those things can affect how your tires wear, and that suspension setting 'tweak' that a PRO can do can make it perfect for you in that situation.

Don't 'stress' those tire marks Ed man! Just ride MORE!!! and MORE and MORE!

so -ORP, Aug 1,2?

Armand · 07-16-2009, 11:43 PM

Originally Posted by Soil

Depending on who you bought the tires from -

But - Tom Young (the Pirelli guy on site almost all the time) tweaked my pressure and suspension throughout the day... and made my ride PERFECT!

the bad news I've been letting people know when they ask - there is no magic setting for your bike. EVERYTHING can affect how your bike rides... which in turn affects how your suspension needs to be tweaked. Those tires don't look 'bad' - and most of us (including me) wouldn't even notice a difference in what Tom did to my bike to get rid of those slight tears. I DIDN'T notice any difference in what I felt, but the tires 'cleaned up' after two adjustments.

BUT - you put on 5 pounds (or loose it), you buy new tires, or -heaven forbid here in Oregon, the temperature is 10-15 degrees different between track days; all those things can affect how your tires wear, and that suspension setting 'tweak' that a PRO can do can make it perfect for you in that situation.

Don't 'stress' those tire marks Ed man! Just ride MORE!!! and MORE and MORE!

so -ORP, Aug 1,2?

you covering me ?

Squiddly Van Dickweed · 07-17-2009, 12:45 AM

For a liter bike (I'm assuming...according to your sig) after a track day on basically a street tire, it looks great. PIR kills the right side of your tires, especially the rear.

Halpin Customs · 07-17-2009, 01:07 AM

Are you setting your tire pressures hot or cold? You should be coming off the tire warmers at 32 psi...

ddonacazx12 · 07-17-2009, 04:04 AM

Originally Posted by Squiddly Van Dickweed

PIR kills the right side of your tires, especially the rear.

Well for you fast guys it does... for us slow pokes it's not that bad.

I put all my wear on the front slowing down, cuz I havent got the brass to hold the corner speed yet...

FACTOR: It doesn't look that bad, but I can kinda see what the others are talking about with the zones / / ...

Hit up Barry or the guys from GP at a track day, or just run by their shop with a pair of 20s and they will get ya dialed in... if they see the tire right away (before ya wear all the snotballs and stuff off of it) it will probably help em diagnose whats up.

Halpin also makes a great point, my track pressure (per Troy) is not only 2-3 lbs lower than street but is set hot instead of cold... (cold to cold its 6-7 psi lower)

TheFactor · 07-17-2009, 05:58 AM

Thanks for the input everyone !!!! and my tire pressure was 35 hot and then I think they dropped it 2 more pounds . Pirelli did adjust my suspension slightly 2 times after 2 sessions but only small minor adjustments and adjust my tire pressure .

lena · 07-17-2009, 07:39 AM

Moved from PDX section.

mjn · 07-17-2009, 08:26 AM

Originally Posted by Armand

Mjn look at the 2nd pic and you'll notice its split into sections that look sort of like // all down the side of the tire. Constant smooth and rough sections. My tire had the same but my rough spots were longer than his, so I'm assuming mine slipped for longer periods of time ? Dunno

Ok... I see what you are looking at now.. didn't even notice it at first.

See? I don't have a frikkin clue WTF I'm talkin about!

TheFactor · 07-17-2009, 05:05 PM

Originally Posted by mjn

Ok... I see what you are looking at now.. didn't even notice it at first.

See? I don't have a frikkin clue WTF I'm talkin about!

lol me either I thought they looked ok until everyone was pointing it out to me .

TheFactor · 07-17-2009, 05:06 PM

Originally Posted by lena

Moved from PDX section.

Im crushed : ( sorry should of realized it was in the wrong section ..oops

motostunter · 07-17-2009, 08:22 PM

Myself and Brian (Polvo2) had the same sort of thing happening on our DOT race tires on Tuesday, only the tears were very drastic and happening all the way around the right side of the tire. When I talked to the pirelli guys, and everyone else who saw the tires said immediately that I needed to adjust my rebound. I would recommend taking it to GP and have them set you up for aggressive street / track and you should be good. Until you start running 1:20s, then you have to get tire warmers and set up your suspension for track (also per the pirelli guys).

I was told that the Pirelli Diablo Supercorsas (DOT race tires) will handle great all day long with any suspension set up at 1:30 lap times, but when I start getting down into the 1:20s, the tire is being forced to over work itself, and cause tearing. I was told that since I am turning 1:20s, I need to have my suspension adjusted. So, 4 bills for warmers, and 40 for suspension setup.

This after spending $900 on a suspension rebuild at the beginning of the season.

here is what my rear and Brian's rear looked like (this was taken from google images, not our actual tire). This wear is on the left, ours was on the right. Consider yourself lucky, this indicates it is time for new tires:

TheFactor · 07-17-2009, 08:47 PM

Originally Posted by Soil

Depending on who you bought the tires from -

But - Tom Young (the Pirelli guy on site almost all the time) tweaked my pressure and suspension throughout the day... and made my ride PERFECT!

the bad news I've been letting people know when they ask - there is no magic setting for your bike. EVERYTHING can affect how your bike rides... which in turn affects how your suspension needs to be tweaked. Those tires don't look 'bad' - and most of us (including me) wouldn't even notice a difference in what Tom did to my bike to get rid of those slight tears. I DIDN'T notice any difference in what I felt, but the tires 'cleaned up' after two adjustments.

BUT - you put on 5 pounds (or loose it), you buy new tires, or -heaven forbid here in Oregon, the temperature is 10-15 degrees different between track days; all those things can affect how your tires wear, and that suspension setting 'tweak' that a PRO can do can make it perfect for you in that situation.

Don't 'stress' those tire marks Ed man! Just ride MORE!!! and MORE and MORE!

so -ORP, Aug 1,2?

Thanks Clay I appreciate the help : ) Aug 1 and 2 Hmmm sounds like fun

TheFactor · 07-17-2009, 08:49 PM

[QUOTE=motostunter;1785883]Myself and Brian (Polvo2) had the same sort of thing happening on our DOT race tires on Tuesday, only the tears were very drastic and happening all the way around the right side of the tire. When I talked to the pirelli guys, and everyone else who saw the tires said immediately that I needed to adjust my rebound. I would recommend taking it to GP and have them set you up for aggressive street / track and you should be good. Until you start running 1:20s, then you have to get tire warmers and set up your suspension for track (also per the pirelli guys).

I was told that the Pirelli Diablo Supercorsas (DOT race tires) will handle great all day long with any suspension set up at 1:30 lap times, but when I start getting down into the 1:20s, the tire is being forced to over work itself, and cause tearing. I was told that since I am turning 1:20s, I need to have my suspension adjusted. So, 4 bills for warmers, and 40 for suspension setup.

This after spending $900 on a suspension rebuild at the beginning of the season.

here is what my rear and Brian's rear looked like (this was taken from google images, not our actual tire). This wear is on the left, ours was on the right. Consider yourself lucky, this indicates it is time for new tires:

Dam Nate those tires look worked

Thanks for the input bro !!!

motostunter · 07-17-2009, 09:44 PM

Originally Posted by TheFactor

Dam Nate those tires look worked

Thanks for the input bro !!!

That is what happens when you follow Brian around and keep pace with him on cold tires your first lap of the day.

TheFactor · 07-17-2009, 09:59 PM

Originally Posted by motostunter

That is what happens when you follow Brian around and keep pace with him on cold tires your first lap of the day.

Well on a brighter note at least they kept you shiny side up

gixer_racer · 07-17-2009, 11:06 PM

Originally Posted by motostunter

That is what happens when you follow Brian around and keep pace with him on cold tires your first lap of the day.

The pic you posted above isn't *too* very bad, *IF* the rider corrects their tire pressure and rebound as well as let the tire get some heat in it before thrashing it. That tire would clean up pretty nice after a couple of proper laps.

At 20's, you'll definitely notice differences in suspension and the tire will show some wear, but if you're only doing track days, you don't *need* to spend all that cash on warmers.... Just it easy the first lap or two until you get some heat in the tires then rip into it. If you're racing and on a tight budget, be aggressive (but not stupid) on the warm up lap, then take it easy in T1 and T2, then you'll be just fine.

Also, EDR has a set of tire warmers that I think ran about $250? Can't remember what he charged me when I grabbed a set. They seemed to work fairly well too.

the chemist · 07-18-2009, 02:17 AM

Originally Posted by motostunter

I was told that since I am turning 1:20s, I need to have my suspension adjusted. So, 4 bills for warmers, and 40 for suspension setup.

This after spending $900 on a suspension rebuild at the beginning of the season.
=Consider yourself lucky, this indicates it is time for new tires:

Ok, Im gonna call you out on a few things...

1. Post pictures of your lap timer, because I dont believe you're doing 1:20's. When we talked you tried telling me I was dumb because I said nobody uses their rear brake except for a few occasions (running off track, backing it in or mid corner adjustments etc). You said you wanted to get used to using it so you had the extra stopping power on the track

. I just dont believe you're doing 1:20's.

2. You can pick up tyre socks for a lot cheaper than 400 bucks. Yea, they don't work quite as good...but for someone on a budget a few extra minutes is worth it.

3. That picture you showed does not indicated the need for new tires. If you believe that you have NO idea wtf you're talking about.

Originally Posted by gixer_racer

The pic you posted above isn't *too* very bad, *IF* the rider corrects their tire pressure and rebound as well as let the tire get some heat in it before thrashing it. That tire would clean up pretty nice after a couple of proper laps.

Compound also has an effect. If it is a soft compound (SC0 or SC1) the tire will more than likely have this 'shredding' look. Talk to Barry sometime, and take a look at his tires. He had an AMA spec that was shredded like crazy because it was a soft compound. My AMA spec is starting to shred like the pictures the faster i get.

Jet City Racer · 07-18-2009, 04:53 AM

Originally Posted by FZ6Rider

fail! double post.

btw, mine doesnt have chicken strip

I'm a bit surprised how well street deablos did at the track.

Never point your finger at someone else if you can't even spell.

manicmike · 07-18-2009, 09:33 AM

Deerhunter · 07-20-2009, 04:57 AM

Originally Posted by Nicegy525

more rebound! (assuming youve already done the baseline set-up sag, compression etc)

little bit more pressure in the rear (like 1-2 psi) might help the tread cupping.

but not bad for track tire wear. Ive definitely seen worse.

I hate giving advice here, but this is how I would proceed. The telling spot on your tire wear is the small, clear field directly in front of your tread and the beginning of cupping in that same location. Leave a screwdriver on the pit wall. Slow the rebound, 1/8 to 1/4 turn at a time, go out for three laps and check it. Continue this and see if it goes away.

TheFactor · 07-20-2009, 05:59 AM

Originally Posted by Deerhunter

I hate giving advice here, but this is how I would proceed. The telling spot on your tire wear is the small, clear field directly in front of your tread and the beginning of cupping in that same location. Leave a screwdriver on the pit wall. Slow the rebound, 1/8 to 1/4 turn at a time, go out for three laps and check it. Continue this and see if it goes away.

Thanks i'll try that this weekend


07-16-2009, 10:19 PM	#1
TheFactor Superbiker Joined: Jul 2008 From: Hilllsboro,Or Blog Entries: 1 I Ride: 2006 CBR 1000 rr	Track day tire wear ? Well my rear tire has some strange wear its rolling over the back edge and just has strange wear patterns as i've noticed and been told . So is my suspension to soft , to hard ? My tire pressure was at 32psi which is what parelli recommended. I plan on taking it in to have the suspension setup again but wanted some different oppinions on whats going and maybe if I can just tweak it a little my self. I just dont want to make it worse, the bike did feel good to me and felt planted but the rear tire just looked strange. I know I didnt get it down to the edge yet but I'll work on it my next track day heres a few pics __________________ Follow PNW Riders on Facebook and Twitter


07-16-2009, 10:27 PM	#2
Nicegy525 Zone Head Joined: Feb 2008 From: Portland, Oregon I Ride: '07 GSXR-750	more rebound! (assuming youve already done the baseline set-up sag, compression etc) little bit more pressure in the rear (like 1-2 psi) might help the tread cupping. but not bad for track tire wear. Ive definitely seen worse. __________________ Follow PNW Riders on Facebook and Twitter


07-16-2009, 10:36 PM	#3
rolandk Pit Crew Joined: Feb 2008 From: Portland, Oregon USA	Have your bike set up by a suspension professional. Its really worth the $40-ish they charge. Barry Wressel is a genious (he was at the track yesterday) and does setups at EDR several times a year. __________________ Follow PNW Riders on Facebook and Twitter


07-16-2009, 10:37 PM	#4
mjn Moderator Joined: Jul 2005 From: Tri-Cities Blog Entries: 1 I Ride: In search of the next 35mph corner......	Please take this opinion with a grain of salt, as I'm no racer, and have done a whoppin ONE track day... ' BUT; For one track day....that tire looks DAMN good to me! __________________ Follow PNW Riders on Facebook and Twitter


07-16-2009, 11:17 PM	#5
Armand WMRRA Qualifier Joined: Apr 2008 From: Oregon I Ride: If I only had a bike	Clay pointed out to me that I had the same sort of issue so I took it to barry w and he said I had tooo much rebound and was making my tire skip. Quick adjustment and it felt as good as new Mjn look at the 2nd pic and you'll notice its split into sections that look sort of like // all down the side of the tire. Constant smooth and rough sections. My tire had the same but my rough spots were longer than his, so I'm assuming mine slipped for longer periods of time ? Dunno __________________ Follow PNW Riders on Facebook and Twitter

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07-16-2009, 11:19 PM	#6
FZ6Rider Streetfighter Joined: Aug 2008 From: Woodburn, OR I Ride: wrecked bikes!	fail! double post. btw, mine doesnt have chicken strip I'm a bit surprised how well street deablos did at the track. I will run them again than look at something else. I just hope my tire will have enough life in it for one more track day. __________________ Follow PNW Riders on Facebook and Twitter Last edited by FZ6Rider; 07-16-2009 at 11:22 PM..


07-16-2009, 11:29 PM	#8
Soil Zone Head Joined: Mar 2008 From: Beaverton, OR - CLAY I Ride: K6 GSXR 1K	Depending on who you bought the tires from - But - Tom Young (the Pirelli guy on site almost all the time) tweaked my pressure and suspension throughout the day... and made my ride PERFECT! the bad news I've been letting people know when they ask - there is no magic setting for your bike. EVERYTHING can affect how your bike rides... which in turn affects how your suspension needs to be tweaked. Those tires don't look 'bad' - and most of us (including me) wouldn't even notice a difference in what Tom did to my bike to get rid of those slight tears. I DIDN'T notice any difference in what I felt, but the tires 'cleaned up' after two adjustments. BUT - you put on 5 pounds (or loose it), you buy new tires, or -heaven forbid here in Oregon, the temperature is 10-15 degrees different between track days; all those things can affect how your tires wear, and that suspension setting 'tweak' that a PRO can do can make it perfect for you in that situation. Don't 'stress' those tire marks Ed man! Just ride MORE!!! and MORE and MORE! so -ORP, Aug 1,2? __________________ Follow PNW Riders on Facebook and Twitter


07-17-2009, 12:45 AM	#10
Squiddly Van Dickweed Training Wheels Joined: Aug 2008 From: Oregon I Ride: Zx10r	For a liter bike (I'm assuming...according to your sig) after a track day on basically a street tire, it looks great. PIR kills the right side of your tires, especially the rear. __________________ Follow PNW Riders on Facebook and Twitter


07-17-2009, 01:07 AM	#11
Halpin Customs Training Wheels Joined: Dec 2007 From: Shoreline, WA I Ride: The kind with 2 wheels	Are you setting your tire pressures hot or cold? You should be coming off the tire warmers at 32 psi... __________________ Follow PNW Riders on Facebook and Twitter


07-17-2009, 05:58 AM	#13
TheFactor Superbiker Joined: Jul 2008 From: Hilllsboro,Or Blog Entries: 1 I Ride: 2006 CBR 1000 rr	Thanks for the input everyone !!!! and my tire pressure was 35 hot and then I think they dropped it 2 more pounds . Pirelli did adjust my suspension slightly 2 times after 2 sessions but only small minor adjustments and adjust my tire pressure . __________________ Follow PNW Riders on Facebook and Twitter Last edited by TheFactor; 07-17-2009 at 06:00 AM..


07-17-2009, 07:39 AM	#14
lena Moderator Joined: Aug 2007 From: Portland, OR I Ride: Monster 750	Moved from PDX section. __________________ Follow PNW Riders on Facebook and Twitter


07-17-2009, 08:22 PM	#18
motostunter Zone Head Joined: Aug 2006 From: Portland, Or (Bethany) I Ride: 03 636	Myself and Brian (Polvo2) had the same sort of thing happening on our DOT race tires on Tuesday, only the tears were very drastic and happening all the way around the right side of the tire. When I talked to the pirelli guys, and everyone else who saw the tires said immediately that I needed to adjust my rebound. I would recommend taking it to GP and have them set you up for aggressive street / track and you should be good. Until you start running 1:20s, then you have to get tire warmers and set up your suspension for track (also per the pirelli guys). I was told that the Pirelli Diablo Supercorsas (DOT race tires) will handle great all day long with any suspension set up at 1:30 lap times, but when I start getting down into the 1:20s, the tire is being forced to over work itself, and cause tearing. I was told that since I am turning 1:20s, I need to have my suspension adjusted. So, 4 bills for warmers, and 40 for suspension setup. This after spending $900 on a suspension rebuild at the beginning of the season. here is what my rear and Brian's rear looked like (this was taken from google images, not our actual tire). This wear is on the left, ours was on the right. Consider yourself lucky, this indicates it is time for new tires: __________________ Follow PNW Riders on Facebook and Twitter Last edited by motostunter; 07-17-2009 at 08:30 PM..


07-17-2009, 08:49 PM	#20
TheFactor Superbiker Joined: Jul 2008 From: Hilllsboro,Or Blog Entries: 1 I Ride: 2006 CBR 1000 rr	[QUOTE=motostunter;1785883]Myself and Brian (Polvo2) had the same sort of thing happening on our DOT race tires on Tuesday, only the tears were very drastic and happening all the way around the right side of the tire. When I talked to the pirelli guys, and everyone else who saw the tires said immediately that I needed to adjust my rebound. I would recommend taking it to GP and have them set you up for aggressive street / track and you should be good. Until you start running 1:20s, then you have to get tire warmers and set up your suspension for track (also per the pirelli guys). I was told that the Pirelli Diablo Supercorsas (DOT race tires) will handle great all day long with any suspension set up at 1:30 lap times, but when I start getting down into the 1:20s, the tire is being forced to over work itself, and cause tearing. I was told that since I am turning 1:20s, I need to have my suspension adjusted. So, 4 bills for warmers, and 40 for suspension setup. This after spending $900 on a suspension rebuild at the beginning of the season. here is what my rear and Brian's rear looked like (this was taken from google images, not our actual tire). This wear is on the left, ours was on the right. Consider yourself lucky, this indicates it is time for new tires: Dam Nate those tires look worked Thanks for the input bro !!! __________________ Follow PNW Riders on Facebook and Twitter


07-18-2009, 09:33 AM	#26
manicmike Zone Head Joined: Aug 2007 From: Ellensburg,WA I Ride: street:2007 gixxer 6 track:2006 gsxr 600	. __________________ Follow PNW Riders on Facebook and Twitter Last edited by manicmike; 07-18-2009 at 06:23 PM..

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