Major Cause of Tire Cupping/Dishing...??? - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 12 (permalink) Old 03-19-2013, 07:32 PM Thread Starter
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Major Cause of Tire Cupping/Dishing...???

What do y'all think is the major cause of cupping/dishing on tires...??? I have heard different things, some say too low air pressure and others have said that it is normal wear in turns... I just know that I have always had a problem with dishing/cupping on the off center of my tires, I even bought a pretty good balance setup and really get serious with the balance even after they are mounted and balanced at a shop, I check them and add very minute pieces of weights if any imbalance is found, even check them after they display cupping/dishing and can't find a balance issue... I've had the problem with the Shadow, the Vulcans, and also my Sportster... It can't be my love for ridin the twisties, I won't accept that...lol...
Thanks, and have a good one...Old Dog...

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post #2 of 12 (permalink) Old 03-19-2013, 07:45 PM
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Underinflation, worn rear shocks, worn front springs, braking hard, and playing hard in the twisties. Cheaper tires will tend to cup faster.

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post #3 of 12 (permalink) Old 03-19-2013, 07:52 PM
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You ride twisty roads with poor road surfaces? It's not always balance or inflation....

Read here:
http://www.rattlebars.com/tirewear/index.html

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post #4 of 12 (permalink) Old 03-19-2013, 09:45 PM Thread Starter
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Quote:
Originally Posted by Knifemaker View Post
You ride twisty roads with poor road surfaces? It's not always balance or inflation....

Read here:
http://www.rattlebars.com/tirewear/index.html
What he said makes sense... I had heard that same thing from a pretty knowledgeable rider friend before, also the part about low air pressure accelerating the problem...
Thanks and have a good one...Old Dog...

Southern Central Tennessee.......
Now on the Dark Side......
Girl's Bike 09 Sporty xl 1200 Custom...33k + & clickin......
Sportster Owner/Rider since age 72...lol... Rider since Simplex...???
09-xl1200 "C" Vivid Black, Cast wheels w/19" Frt., SE-Stage 1+, X14iEDs...
MicroTach +, Higher wider H-bars, GPS Mt., Mustach bar Hwy. pegs...
Viking Shock cutout Saddlebags, Rear Mt. Signal Lt. Kit, Fork Brace...
RoadKing Air Shocks, Mustang Seat, Progressive Fork Springs...
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post #5 of 12 (permalink) Old 03-20-2013, 12:51 PM
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Everything that you ever wanted to know about MC tire wear...

Motorcycle Tire Wear

MCCT Mod
Pickup Mod
12 Volt Receptacle Mod
Memphis Shades Santa Cruz
Homemade Luggage Rack
NGK Iridium IX Spark Plugs
Harley Sportster Exhausts
Rotating/Flashing Tail Lights
170/80 Michelin Commander II
Saddlemen Highwayman Slant Jumbo Saddlebags
Bought 09/10 12.2k miles - 04/12 33.4k miles
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post #6 of 12 (permalink) Old 03-20-2013, 01:18 PM
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cupping on tires is proportional to the amount of wear on the bolt head on the underside of the footpeg
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post #7 of 12 (permalink) Old 03-20-2013, 03:05 PM Thread Starter
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Quote:
Originally Posted by kc2dgq View Post
cupping on tires is proportional to the amount of wear on the bolt head on the underside of the footpeg
But I just put a new one on the right side, should I replace the left one also, it still don't let the rubber scrub...???
Have a good one...Old Dog...

Southern Central Tennessee.......
Now on the Dark Side......
Girl's Bike 09 Sporty xl 1200 Custom...33k + & clickin......
Sportster Owner/Rider since age 72...lol... Rider since Simplex...???
09-xl1200 "C" Vivid Black, Cast wheels w/19" Frt., SE-Stage 1+, X14iEDs...
MicroTach +, Higher wider H-bars, GPS Mt., Mustach bar Hwy. pegs...
Viking Shock cutout Saddlebags, Rear Mt. Signal Lt. Kit, Fork Brace...
RoadKing Air Shocks, Mustang Seat, Progressive Fork Springs...
Old Dog is offline  
post #8 of 12 (permalink) Old 03-20-2013, 03:42 PM
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Quote:
Originally Posted by CW-4 View Post
Everything that you ever wanted to know about MC tire wear...

Motorcycle Tire Wear
That's the same exact link I gave a few posts back....stop stealing my links!!!LOL

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post #9 of 12 (permalink) Old 03-20-2013, 05:14 PM Thread Starter
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Quote:
Originally Posted by Knifemaker View Post
That's the same exact link I gave a few posts back....stop stealing my links!!!LOL
Ha, ha, yep and a pretty darn good link at that... PS-Thanks to you both, I now have the shortcut to it...lol...
Have a good one...Old Dog...

Southern Central Tennessee.......
Now on the Dark Side......
Girl's Bike 09 Sporty xl 1200 Custom...33k + & clickin......
Sportster Owner/Rider since age 72...lol... Rider since Simplex...???
09-xl1200 "C" Vivid Black, Cast wheels w/19" Frt., SE-Stage 1+, X14iEDs...
MicroTach +, Higher wider H-bars, GPS Mt., Mustach bar Hwy. pegs...
Viking Shock cutout Saddlebags, Rear Mt. Signal Lt. Kit, Fork Brace...
RoadKing Air Shocks, Mustang Seat, Progressive Fork Springs...

Last edited by Old Dog; 03-20-2013 at 05:38 PM.
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post #10 of 12 (permalink) Old 03-22-2013, 02:50 PM
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Quote:
Originally Posted by Knifemaker View Post
That's the same exact link I gave a few posts back....stop stealing my links!!!LOL
Posted that link several times over the past few years..... Seems that the "tire wear" thread gets started just about as ofter as the "best oil" thread does.

MCCT Mod
Pickup Mod
12 Volt Receptacle Mod
Memphis Shades Santa Cruz
Homemade Luggage Rack
NGK Iridium IX Spark Plugs
Harley Sportster Exhausts
Rotating/Flashing Tail Lights
170/80 Michelin Commander II
Saddlemen Highwayman Slant Jumbo Saddlebags
Bought 09/10 12.2k miles - 04/12 33.4k miles
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