Front end wobble : Honda CBR 600RR Sportbike Forum : 600RR.Net

» Insurance
» Sponsors
» Honda 600RR Prices
Go Back   600RR.net > Technical Talk > Tires, Suspension & Handling

Tires, Suspension & Handling Sticky to slippery tire talk

Reply
 
Thread Tools
Old 11-19-2012, 03:11 PM   #1
JaJaWarrior
Training Wheel Hero
 
Join Date: Dec 2011
Location: Southern California
Posts: 87
Thanks: 1
Thanked 3 Times in 3 Posts
Feedback Score: 1 reviews
Front end wobble

What could cause the front wobble in a straight line? New tires, brake rotors, brake system just bleed.

Sent from my HTC Glacier using Motorcycle.com Free App
JaJaWarrior is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 11-19-2012, 03:32 PM   #2
wrathsrr
Lifetime Premium
 
wrathsrr's Avatar
 
Join Date: Feb 2011
Location: Saline, Mi....
Posts: 1,704
Thanks: 76
Thanked 162 Times in 148 Posts
Feedback Score: 4 reviews
Tire not balanced? Had a buddy that had a high speed wobble at 120+. Ended up being last place that balanced, used the little ball bearings inside the tire (dont know correct term), instead of the wheel weight method. This was also multiplied by having a heavier compound tire (Shinko I believe).
He replaced front and rear with PP2ct's, balanced and problem solved.
Check balance..
What kind of tires?
__________________


Quote:
Originally Posted by -Rizzo- View Post
hey pound town is going to take over as a saying
Keeper of the Bucket-2W1R
wrathsrr is offline   Reply With Quote
Old 11-19-2012, 05:40 PM   #3
JaJaWarrior
Training Wheel Hero
 
Join Date: Dec 2011
Location: Southern California
Posts: 87
Thanks: 1
Thanked 3 Times in 3 Posts
Feedback Score: 1 reviews
BT 0016R. they are new but not sparking fresh. About 100 miles on them. What about bad bearing?

Sent from my HTC Glacier using Motorcycle.com Free App
JaJaWarrior is offline   Reply With Quote
Old 11-19-2012, 10:31 PM   #4
bejbis
Knee Dragger
 
Join Date: Jul 2010
Location: Mobile, AL
Posts: 118
Thanks: 0
Thanked 8 Times in 8 Posts
Feedback Score: 3 reviews
A bearing wouldn't make a wobble just noise. Did the problem start with the new tires?

Try getting the wheel on a stand and spinning it to see if there is any runout. You also may not have seated the bead completely. You should be able to visually notice that as well.
bejbis is offline   Reply With Quote
Old 11-22-2012, 02:03 PM   #5
JaJaWarrior
Training Wheel Hero
 
Join Date: Dec 2011
Location: Southern California
Posts: 87
Thanks: 1
Thanked 3 Times in 3 Posts
Feedback Score: 1 reviews
What about steering head? What is a bead?

Sent from my HTC Glacier using Motorcycle.com Free App
JaJaWarrior is offline   Reply With Quote
Old 11-22-2012, 02:09 PM   #6
swan-rr5
AMA Supersport Racer
 
swan-rr5's Avatar
 
Join Date: Jan 2011
Location: yorkshire
Posts: 1,111
Thanks: 116
Thanked 251 Times in 208 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by bejbis View Post
A bearing wouldn't make a wobble just noise.
I disagree, when my rear bearing went, it felt like the wheel was moving around/wobbling. at first I thought the wheel was loose but it wasn't, got the wheel off & the bearing was destroyed
swan-rr5 is offline   Reply With Quote
The Following User Says Thank You to swan-rr5 For This Useful Post:
brmoore (11-30-2012)
Old 11-30-2012, 02:18 PM   #7
brmoore
Dealer
 
brmoore's Avatar
 
Join Date: Jul 2011
Location: North West, UK
Posts: 2,068
Thanks: 522
Thanked 132 Times in 116 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by wrathsrr View Post
used the little ball bearings inside the tire (dont know correct term)
what the frack...
brmoore is offline   Reply With Quote
Old 11-30-2012, 02:27 PM   #8
SmuRRf
Knee Dragger
 
SmuRRf's Avatar
 
Join Date: Jan 2012
Location: Cape Town ZA
Posts: 162
Thanks: 21
Thanked 13 Times in 12 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by brmoore View Post
what the frack...
Google it. They inject some form of beads in the tire as a substitute for wheel weights. Duno if I'll trust it though.
SmuRRf is offline   Reply With Quote
Old 11-30-2012, 02:48 PM   #9
daisoman
Pocketbike Racer
 
daisoman's Avatar
 
Join Date: Jul 2012
Location: T dot O
Posts: 354
Thanks: 15
Thanked 37 Times in 32 Posts
Feedback Score: 0 reviews
They're called dynabeads


Sent from my iPhone using Motorcycle.com Free App
daisoman is offline   Reply With Quote
The Following User Says Thank You to daisoman For This Useful Post:
SmuRRf (11-30-2012)
Old 11-30-2012, 03:01 PM   #10
MikeyP
Moto GP Racer
 
MikeyP's Avatar
 
Join Date: May 2009
Location: Austin, TX
Posts: 2,826
Thanks: 208
Thanked 190 Times in 142 Posts
Feedback Score: 7 reviews
My first thought is your balance weight came off.

Have you removed the wheel recently? Maybe dropped a spacer?
__________________
2008 CBR 600RR #1 (Graffiti) street
2008 CBR 600RR #2 track
CMRA #599


Quote:
Originally Posted by MikeyP View Post
Unfortunately bikes fall over. It's in their nature.
It's our job to keep them upright, but we are only men.
MikeyP is offline   Reply With Quote
Old 11-30-2012, 04:31 PM   #11
oldschooldesigns
Pocketbike Racer
 
Join Date: Apr 2012
Posts: 336
Thanks: 47
Thanked 44 Times in 40 Posts
Feedback Score: 2 reviews
Over-filled brake reservoir can cause similar problems, especially if you just bled the brakes.

P.O of my bike did the same thing, pulled some fluid out and it went right away.

Dynabeads work well too, professional shops should be able to balance your tire appropriately too.
__________________
'06 in Silver: 29K on the clock (and counting)
PCIII w/custom tune (stock AF and shortie stacks)
320mm rotors with SBK5 pads, Galfer HH rear
Full f/r FenTubo Type 2 set black on black
Nissin Radial M/C (07+)
wrapped in Mich Power Pures (aka love)
oldschooldesigns is offline   Reply With Quote
Old 12-02-2012, 02:29 PM   #12
JaJaWarrior
Training Wheel Hero
 
Join Date: Dec 2011
Location: Southern California
Posts: 87
Thanks: 1
Thanked 3 Times in 3 Posts
Feedback Score: 1 reviews
There are a put of possible explainations. So bottom line is I will have to take the bike apart?

Sent from my HTC Glacier using Motorcycle.com Free App
JaJaWarrior is offline   Reply With Quote
Old 12-04-2012, 02:57 AM   #13
Ry6rr
BOTM Winner 4/13
 
Ry6rr's Avatar
 
Join Date: Jan 2012
Location: UK
Posts: 1,301
Thanks: 98
Thanked 290 Times in 243 Posts
Feedback Score: 2 reviews
Wheel Balancing

My first thought would be that the front wheel is balanced incorrectly. It's most likely down to loosing a balance weight as already mentioned or the correct weights were not applied when the tyre was changed. At the very least you might want to remove the front wheel and check that it is balanced.
Ry6rr is offline   Reply With Quote
Old 12-05-2012, 02:09 PM   #14
crashkhanman
World Superbike Racer
 
crashkhanman's Avatar
 
Join Date: Mar 2008
Location: 9 miles away from Summit Point, WV Racetrack!
Posts: 2,485
Thanks: 231
Thanked 199 Times in 175 Posts
Feedback Score: 8 reviews
Could be a lot of things. Break the bike down and check the front end. Steering head bearing, Front wheel bearings, Front wheel spacer missing, bolts/nuts not torque'd correctly, front wheel not balanced properly to name a few, bad tire, bent/warped rotor etc

Let us know what you find. Good luck!
__________________
'12 Aprilia RSV4 Factory!



'07 CBR600RR Black ~ SOLD
'09 CBR600RR Phoenix TrackOnly ~SOLD
'09 CBR600RR Red/Black ~SOLD
'07 CBR600RR Blue/Silver ~SOLD
crashkhanman is online now   Reply With Quote
Old 12-05-2012, 04:07 PM   #15
MikeyP
Moto GP Racer
 
MikeyP's Avatar
 
Join Date: May 2009
Location: Austin, TX
Posts: 2,826
Thanks: 208
Thanked 190 Times in 142 Posts
Feedback Score: 7 reviews
A loose or bad steering head bearing will not cause "wobble."
You would know if the steering bearing is bad as soon as you apply your front brakes. It would make a "clunking" sound and you will feel the movement.

Have you removed the wheel yet, and checked your spacers? Checked to make sure you still have a balance weight?
__________________
2008 CBR 600RR #1 (Graffiti) street
2008 CBR 600RR #2 track
CMRA #599


Quote:
Originally Posted by MikeyP View Post
Unfortunately bikes fall over. It's in their nature.
It's our job to keep them upright, but we are only men.
MikeyP is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not 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 Off

Forum Jump


All times are GMT -4. The time now is 11:44 AM.



Powered by: vBulletin | vBadvanced CMPS & Gallery
Copyright ©2000 - 2013, Jelsoft Enterprises Ltd.
Motorcycle News, Videos and Reviews
Ducati Forum Harley Davidson Honda 600RR Kawasaki Forum Yamaha R6
1199 Panigale Roadglide Forum Honda CBR1000 Vulcan Forum Yamaha R1
Ducati Monster Harley Forums Honda CBR250R ZX10R Forum Star Raider
Suzuki GSXR V-Rod Forums Honda Shadow Kawasaki Motorcycles Star Warrior
SV650 Forum BMW S1000RR Honda Fury Kawasaki Versys Drag Racing
Suzuki V-Strom BMW K1600 Triumph Forum Victory Forums Sportbikes
Volusia Forum BMW F800 Triumph 675 MV Agusta Forum Streetfighters