rebound tear - Chicagoland Sportbikes
Chicagoland Sportbikes
 
Track Talk This forum is all about discussing riding and setup tips for different types of racetracks. As well as discussion about the local racing scene.

 
LinkBack Thread Tools Display Modes
post #1 of 12 (permalink) Old 08-01-2007, 11:33 AM Thread Starter
Registered User
 
DieselBoy's Avatar
 
Join Date: Aug 2004
Location: Naperville IL
Posts: 701
Location: Naperville IL
Sportbike: 08 R6 , CRF250R
Years Riding: 1
How you found us: chicagorussionriders
           
rebound tear

My PP have the same rebound tear pattern as http://www.feelthetrack.com/tire-wear.html
However, I'm confused which direction my rebound should be changed. I'm assuming it should rebound faster.

Just doublechecking.

CCS 787(ex). 08r6
DieselBoy is offline  
Sponsored Links
Advertisement
 
post #2 of 12 (permalink) Old 08-02-2007, 10:21 AM

 
gkotlin's Avatar
 
Join Date: Jul 2006
Location: NW Burbs
Posts: 4,565
Location: NW Burbs
Sportbike: SV 650, FZR 400, RM 125
Years Riding: Since 1990
How you found us: Nesba!
           
Quote:
Originally Posted by DieselBoy View Post
My PP have the same rebound tear pattern as http://www.feelthetrack.com/tire-wear.html
However, I'm confused which direction my rebound should be changed. I'm assuming it should rebound faster.

Just doublechecking.
I'm no expert, but I did stay in a Holiday Inn Express last night.

If I understand correct. If you do truly have rebound tear, then I believe you are correct. Your bike should rebound faster. Or.... You should decrease the amount of rebound damping. The same thing stated two different ways.

Greg K.
STT Staff Member
CCS Expert #12
MSF Instructor

VinylSaurusRex.com - Cyclepath Racing - Safety First Racing - SMR Components - Apexjunkie.com - Yamaha Champions Riding School
"If you're headed toward trees, I'm guessing your on the wrong line." - S. Russell
gkotlin is offline  
post #3 of 12 (permalink) Old 08-02-2007, 10:35 AM
We ride tomorrow?
 
jkrueger's Avatar
 
Join Date: Aug 2006
Location: Appleton WI
Posts: 1,121
Location: Appleton WI
Sportbike: i like 04's
Years Riding: not enough
How you found us: NESBA.com
           
go 6 clicks out, ride it if it cleans it up problem solved if not go back to the original setting and then 6 in the other direction
it might not clean up perfectly right away but you should notice it starting to smooth itself out
jkrueger is offline  
Sponsored Links
Advertisement
 
post #4 of 12 (permalink) Old 08-02-2007, 10:43 AM
DONATING MEMBER
 
Chicago Performance's Avatar
 
Join Date: Jun 2007
Location: Northlake, IL 60164
Posts: 25,074
Location: Northlake, IL 60164
Sportbike: Trackdayz "I" bike!
Years Riding: since last year
How you found us: In a fortune cookie
           
Decrease damping/faster/unscrew is correct. Try different settings and keep track of how the bike felt and how the tire wears each time. Good luck.

------->> Best motorcycle shop ever!

http://www.chicagoperformance.com/
Chicago Performance is offline  
post #5 of 12 (permalink) Old 08-02-2007, 01:35 PM

 
gkotlin's Avatar
 
Join Date: Jul 2006
Location: NW Burbs
Posts: 4,565
Location: NW Burbs
Sportbike: SV 650, FZR 400, RM 125
Years Riding: Since 1990
How you found us: Nesba!
           
Quote:
Originally Posted by jkrueger View Post
go 6 clicks out, ride it if it cleans it up problem solved if not go back to the original setting and then 6 in the other direction
it might not clean up perfectly right away but you should notice it starting to smooth itself out
Ron? Ron Hix... Is that you?

Greg K.
STT Staff Member
CCS Expert #12
MSF Instructor

VinylSaurusRex.com - Cyclepath Racing - Safety First Racing - SMR Components - Apexjunkie.com - Yamaha Champions Riding School
"If you're headed toward trees, I'm guessing your on the wrong line." - S. Russell
gkotlin is offline  
post #6 of 12 (permalink) Old 08-02-2007, 01:46 PM
We ride tomorrow?
 
jkrueger's Avatar
 
Join Date: Aug 2006
Location: Appleton WI
Posts: 1,121
Location: Appleton WI
Sportbike: i like 04's
Years Riding: not enough
How you found us: NESBA.com
           
nope its me, i just spread the good word when i get the chance.
If Ron was posting under my name there would be another one of these starting up

http://www.nesba.com/TrackTalk/bb/Fo...ML/002415.html
jkrueger is offline  
post #7 of 12 (permalink) Old 08-02-2007, 01:52 PM Thread Starter
Registered User
 
DieselBoy's Avatar
 
Join Date: Aug 2004
Location: Naperville IL
Posts: 701
Location: Naperville IL
Sportbike: 08 R6 , CRF250R
Years Riding: 1
How you found us: chicagorussionriders
           
Thanks all

I've been "noticing" the rear sort of getting "loose" over bumps and elevations. Hopefully, the tweak will help that too.

CCS 787(ex). 08r6
DieselBoy is offline  
post #8 of 12 (permalink) Old 08-02-2007, 01:58 PM
Chief Apex Inspector
 
BLARNEY's Avatar
 
Join Date: Mar 2004
Location: Bartlett
Posts: 10,598
Location: Bartlett
Sportbike: The Bird is the *word* - XX
Years Riding: Lots
How you found us: Stuck on the bottom of my race boot.......
           
Diesel....


You can verify your rebound setting visually pretty accurately.

Stand next to the bike and bounce the back of it deeply.

It should move on a three count.

one-two-three say it as you do it.... one-two-three

down is 1
up is 2 - 3


If it is coming back too fast, the rear tire is unloading and losing grip.
You would need to add rebound ( clockwise ) to correct this.



I'll be the contrary opinion here and bet your rear is rebounding too fast.


Tom

Same in the front BTW.

T2
It's ALL between the ears.....
NESBA Midwest CR #82 ( Hey - T2! ) Retired ?
FJR and a Big Red Wing-Thing
BLARNEY's GARAGE
BLARNEY is offline  
post #9 of 12 (permalink) Old 08-02-2007, 03:58 PM
I'm a blessed man
 
ronhix's Avatar
 
Join Date: Sep 2004
Location: Aurora, IL
Posts: 3,707
Location: Aurora, IL
Sportbike: GSXR 1000
Years Riding: not long enough
How you found us: Sportbikes.net
           
Quote:
Originally Posted by gkotlin View Post
Ron? Ron Hix... Is that you?
Quote:
Originally Posted by jkrueger View Post
nope its me, i just spread the good word when i get the chance.
If Ron was posting under my name there would be another one of these starting up

http://www.nesba.com/TrackTalk/bb/Fo...ML/002415.html


It really is sweet when you can just kick back and watch your word spoken by others. Jesse, I love you man.

Ron Hix
MTD CR #975

Last edited by ronhix; 08-02-2007 at 04:00 PM.
ronhix is offline  
post #10 of 12 (permalink) Old 08-02-2007, 09:27 PM Thread Starter
Registered User
 
DieselBoy's Avatar
 
Join Date: Aug 2004
Location: Naperville IL
Posts: 701
Location: Naperville IL
Sportbike: 08 R6 , CRF250R
Years Riding: 1
How you found us: chicagorussionriders
           
Quote:
Originally Posted by BLARNEY View Post
one-two-three say it as you do it.... one-two-three

down is 1
up is 2 - 3


If it is coming back too fast, the rear tire is unloading and losing grip.
You would need to add rebound ( clockwise ) to correct this.
rear shoots up almost immediately.
front slower but noticably less than in 1 sec.

ok , now I feel like I have just opened pandora box...

CCS 787(ex). 08r6
DieselBoy is offline  
post #11 of 12 (permalink) Old 08-02-2007, 09:50 PM
Chief Apex Inspector
 
BLARNEY's Avatar
 
Join Date: Mar 2004
Location: Bartlett
Posts: 10,598
Location: Bartlett
Sportbike: The Bird is the *word* - XX
Years Riding: Lots
How you found us: Stuck on the bottom of my race boot.......
           
Quote:
Originally Posted by DieselBoy View Post
rear shoots up almost immediately.
front slower but noticably less than in 1 sec.

ok , now I feel like I have just opened pandora box...


Nope...

Suspension is complicated.... not impossible.



What you are looking for is BALANCE.

Stand next to the bike facing it.

Put one hand on the center of the steering stem.
Put the other hand in the center of the seat.


Stroke the suspension.


Both ends should fall and rise with the SAME CADENCE.


One.....two-three


If it is not balanced, this same action occurs while you are riding.
The imbalance shifts weight and therefore traction from one end to
the other over deformities in the track..... this is bad.


Balance is key to maintaining even traction or irregularities.


Add rebound to the rear to slow it down, your tearing will disappear.



Get the cadence right.... it's magic


Tom

T2
It's ALL between the ears.....
NESBA Midwest CR #82 ( Hey - T2! ) Retired ?
FJR and a Big Red Wing-Thing
BLARNEY's GARAGE
BLARNEY is offline  
post #12 of 12 (permalink) Old 08-02-2007, 09:52 PM
Chief Apex Inspector
 
BLARNEY's Avatar
 
Join Date: Mar 2004
Location: Bartlett
Posts: 10,598
Location: Bartlett
Sportbike: The Bird is the *word* - XX
Years Riding: Lots
How you found us: Stuck on the bottom of my race boot.......
           
Or alternately..... Stop by and see me in the pits and I'll help you set it up.


Tom

T2
It's ALL between the ears.....
NESBA Midwest CR #82 ( Hey - T2! ) Retired ?
FJR and a Big Red Wing-Thing
BLARNEY's GARAGE
BLARNEY is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Chicagoland Sportbikes forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome