|
| MickeyBoy | | Chaac |  |  | | Reg. Date | : | 18/09/2010 | | Posts | : | 553 | | Location | : | WiNe CoUnTrY TeMeCuLa, Socialist State of Kalifornia, United States |
|
| | Posted : 01 Apr 2015 - 16:57 Post title : Tire Cupping | | | This is my 1st Commander II front and I am experiencing tire cupping at 4,500 miles. I keep the air pressure at 40 psi and check it weekly. While in Arizona this past weekend I noticed some shadows on the front tire. Sure enough, it is starting to cup. All other brands I have run did not start cupping until 12,000 miles which is something I have come to expect from a motorcycle tire. I have contacted Michelin and am awaiting their reply. Anyone else have similar issues?
|
|
|
|
| Hornet | | Jupiter | |  | | Reg. Date | : | 05/05/2013 | | Posts | : | 1,294 | | Location | : | United States |
|
| | Posted : 01 Apr 2015 - 17:44 Post title : Re: Tire Cupping (Re: MickeyBoy) | | | Yes, same issue. Cupping on front and rear is very close to needing replaced @ 5000 miles.
Check PSI religiously, 36 front 38 rear.
| You'll never be first but you might be next
2014 Commander
|
|
|
|
| Smitty | | Chaac | |  | | Reg. Date | : | 01/10/2012 | | Posts | : | 996 | | Location | : | Hawkesbury, NSW, Australia |
|
| | Posted : 01 Apr 2015 - 18:23 Post title : Re: Tire Cupping (Re: Hornet) | | | I can't help if the cupping is due to your psi, but 40 psi is too much...
I run 34-36 psi max....
| Cheers Smitty 
2013 Matt Graphite Storm, Foran Razorbacks, Hagon shocks & springs.
I don't get angry, I get even 
|
|
|
|
| davetac1 | | Thunderbird | | | Reg. Date | : | 06/09/2010 | | Posts | : | 8,379 | | Location | : | Haverhill, Ma., United States |
|
| | Posted : 01 Apr 2015 - 18:41 Post title : Re: Tire Cupping (Re: Smitty) | | | Mine was doin that.I changed the front fork springs.No more cupping!
|
|
|
|
| MickeyBoy | | Chaac | | | | Reg. Date | : | 18/09/2010 | | Posts | : | 553 | | Location | : | WiNe CoUnTrY TeMeCuLa, Socialist State of Kalifornia, United States |
|
| | Posted : 01 Apr 2015 - 19:00 Post title : Re: Tire Cupping (Re: davetac1) | | | I have 65,000 miles on the bike and have always run 40 psi up front and 42 psi in the rear. Never had this issue before. I also run 10W in the front forks and that stiffened it up a bit.
|
|
|
|
| Hornet | | Jupiter | | | | Reg. Date | : | 05/05/2013 | | Posts | : | 1,294 | | Location | : | United States |
|
| | Posted : 01 Apr 2015 - 22:06 Post title : Re: Tire Cupping (Re: davetac1) | | | One of the first things I did was change the springs.
| You'll never be first but you might be next
2014 Commander
| | Post edited by Hornet on 01 Apr 2015 - 22:07 |
|
|
|
| gwight | | Chaac | |  | | Reg. Date | : | 26/04/2011 | | Posts | : | 761 | | Location | : | Broken Hill, N.S.W., Australia |
|
| | Posted : 01 Apr 2015 - 22:19 Post title : Re: Tire Cupping (Re: Hornet) | | | I also run 40/42. & have found heavy braking will cause it, especially on twisties. Best to use engine braking as much as possible. 
I got 23k km from my front Avon, with 40 in it & the cupping only appeared towards the end of its life.
Guido.
| | Post edited by gwight on 01 Apr 2015 - 22:49 |
|
|
|
| Leethal | | Zeus | | | | Reg. Date | : | 24/01/2011 | | Posts | : | 6,401 | | Location | : | Australia |
|
| | Posted : 01 Apr 2015 - 23:03 Post title : Re: Tire Cupping (Re: gwight) | | | Concur with the Avon
Is the front Commander dual compound same as rear? I get unusual wear on my rear commanders in the softer compound areas (off centre) but I don't worry about it as it doesn't seem to affect handling.
For the record I run 38 back and front.
An interesting thing that Pete mentioned to me is that on the rear, rebound damping (not enough) can give the tyre sides unusual wear which I have. I have increased this with my latest rear so will see. Maybe the front springs are the issue??
| Experience is something you get just after you needed it
1600,short tors, Meerkat bypass, Dyno tune, real headlight,plenty of chrome,switchblade pegs, Hagon Nitro shocks & Ikon progressive fork springs etc. Scorpion Western Low handlebars. PH adjustable fork caps.
| | Post edited by Leethal on 01 Apr 2015 - 23:06 |
|
|
|
| gwight | | Chaac | | | | Reg. Date | : | 26/04/2011 | | Posts | : | 761 | | Location | : | Broken Hill, N.S.W., Australia |
|
| | Posted : 01 Apr 2015 - 23:59 Post title : Re: Tire Cupping (Re: Leethal) | | | Lee, my Avon rear wore (feathered) on the sides on the Tumby ride, had Di on the back & only ran 38 in it. I googled the "Avon feathering" & it came up as "under inflation"
I increased it to 42-44 & it settled down, the replacement was a Commander 2 with 42 for its life & I got even wear & the best mileage @ 9.5k (not bad for B.H.)
I reckon the front is a harder compound in the centre.
Guido.
|
|
|
|
| Leethal | | Zeus | | | | Reg. Date | : | 24/01/2011 | | Posts | : | 6,401 | | Location | : | Australia |
|
| | Posted : 02 Apr 2015 - 00:16 Post title : Re: Tire Cupping (Re: gwight) | | | Is the Avon rear dual compound?
I get consistent 13000 from the commander 11.
| Experience is something you get just after you needed it
1600,short tors, Meerkat bypass, Dyno tune, real headlight,plenty of chrome,switchblade pegs, Hagon Nitro shocks & Ikon progressive fork springs etc. Scorpion Western Low handlebars. PH adjustable fork caps.
| | Post edited by Leethal on 02 Apr 2015 - 00:17 |
|
|
|
| gwight | | Chaac | | | | Reg. Date | : | 26/04/2011 | | Posts | : | 761 | | Location | : | Broken Hill, N.S.W., Australia |
|
| | Posted : 02 Apr 2015 - 01:37 Post title : Re: Tire Cupping (Re: Leethal) | | | Avon doesn't mention "dual compound", but I got similar mileage with one compared to the Commander.
Link
gives some good info on tire wear. They mention that "cupping" or "scalloping" has nothing to do with suspension problems.
Guido.
| | Post edited by gwight on 02 Apr 2015 - 01:43 |
|
|
|
| Leethal | | Zeus | | | | Reg. Date | : | 24/01/2011 | | Posts | : | 6,401 | | Location | : | Australia |
|
| | Posted : 02 Apr 2015 - 01:42 Post title : Re: Tire Cupping (Re: gwight) | | | Thanks mate, looks like I will have plenty of reading time, wet Easter coming up.
| Experience is something you get just after you needed it
1600,short tors, Meerkat bypass, Dyno tune, real headlight,plenty of chrome,switchblade pegs, Hagon Nitro shocks & Ikon progressive fork springs etc. Scorpion Western Low handlebars. PH adjustable fork caps.
|
|
|
|
| davetac1 | | Thunderbird | | | Reg. Date | : | 06/09/2010 | | Posts | : | 8,379 | | Location | : | Haverhill, Ma., United States |
|
| | Posted : 02 Apr 2015 - 03:17 Post title : Re: Tire Cupping (Re: gwight) | | | I'm sorry,but I have to disagree with the statements made by Avon in the above article regarding cupping,scolloping or what ever teminology they use, and how suspension has nothing to do with it. Experience has taught me differently.Now balance,which was mentioned, can also have a lot to do with cupping,but a lot of guys do NOT know how to balance a MC tire properly.But since I don't hold any college degrees,I'm not as smart are they are. And I'll let it go at that.
| | Post edited by davetac1 on 02 Apr 2015 - 03:31 |
|
|
|
| AleXL4 | | Chaac | | | | Reg. Date | : | 17/09/2012 | | Posts | : | 571 | | Location | : | Gympie, Queensland, Australia |
|
| | Posted : 02 Apr 2015 - 03:35 Post title : Re: Tire Cupping (Re: gwight) | | | Guido,
That article was good reading, since the rain is still pissin down here.
The last rear tyre fitted to my TBird was a Michelin Commander II, currently worn by 7,480km with little sign of wear.
The Rep/Dealer guaranteed that the tyre would last 25,000 miles, for which I am holding them to their written agreement.
The only stipulation being, they required that:
Rear tyre be run with 43psi (one up) or 45psi (two up), along with
Front tyre inflated to 41psi (one up) or 43 psi (two up).
The outcome could be interesting, as only time & kilometres will provide the answer.
So far the result is promising as each of my previous tyres (Metzler, Dunlop, and Bridgestone) have shown significant wear by this stage.
Cheers Alex
| Enjoying the Journey
|
|
|
|
| Leethal | | Zeus | | | | Reg. Date | : | 24/01/2011 | | Posts | : | 6,401 | | Location | : | Australia |
|
| | Posted : 02 Apr 2015 - 03:40 Post title : Re: Tire Cupping (Re: AleXL4) | | | 25000 miles? 
Looks like you get a free rear tyre Alex
| Experience is something you get just after you needed it
1600,short tors, Meerkat bypass, Dyno tune, real headlight,plenty of chrome,switchblade pegs, Hagon Nitro shocks & Ikon progressive fork springs etc. Scorpion Western Low handlebars. PH adjustable fork caps.
|
|
|
|
| AleXL4 | | Chaac | | | | Reg. Date | : | 17/09/2012 | | Posts | : | 571 | | Location | : | Gympie, Queensland, Australia |
|
| | Posted : 02 Apr 2015 - 03:46 Post title : Re: Tire Cupping (Re: Leethal) | | | Possibly for the life of the bike. 
| Enjoying the Journey
|
|
|
|
| gwight | | Chaac | | | | Reg. Date | : | 26/04/2011 | | Posts | : | 761 | | Location | : | Broken Hill, N.S.W., Australia |
|
| | Posted : 02 Apr 2015 - 03:51 Post title : Re: Tire Cupping (Re: Leethal) | | |
Leethal wrote:
25000 miles?
Looks like you get a free rear tyre Alex |
|
Only if ridden on " freshly mowed turf ", they left that stipulation out ! 
Alex, I ran 42 (one up) & 44 (two up) checking pressures often, & only got about 9.5k. If you've been through B.Hill, you'll understand why.
Guido.
|
|
|
|
| MickeyBoy | | Chaac | | | | Reg. Date | : | 18/09/2010 | | Posts | : | 553 | | Location | : | WiNe CoUnTrY TeMeCuLa, Socialist State of Kalifornia, United States |
|
| | Posted : 02 Apr 2015 - 16:31 Post title : Re: Tire Cupping (Re: davetac1) | | | I checked the tire sidewall and it says run 42 psi max. I run 40 psi since I do not always ride 2 up. I can see balance effecting tire wear because the same it true for car and truck tires.
I ran an Avon before this tire and only got 12,000 miles from it. The original Metzeler got 15,000 miles and subsequent Dunlops averaged 16,000 - 18,000 miles. My first Commander II rear tire got 12,000 miles and the last one I ran to 15,000, but should have replaced it around 14,000.
|
|
|
|
| davetac1 | | Thunderbird | | | Reg. Date | : | 06/09/2010 | | Posts | : | 8,379 | | Location | : | Haverhill, Ma., United States |
|
| | Posted : 02 Apr 2015 - 16:41 Post title : Re: Tire Cupping (Re: MickeyBoy) | | | I believe just about ALL of these tires have a MAXIMUM tire pressure of 42psi printed on the sidewall.But that doesn't mean ya have to run it at that pressure.That's usually for two up riding,pullin a trailer,or flat out racing.
|
|
|
|
| NAH | | Set | |  | | Reg. Date | : | 02/10/2014 | | Posts | : | 195 | | Location | : | Paso Robles, California, United States |
|
| | Posted : 02 Apr 2015 - 18:15 Post title : Re: Tire Cupping (Re: MickeyBoy) | | | The only way I will get 12,000 to 18,000 miles on my tires is if I push the bike everywhere. I don't know how you guys do it. Best I've got is 4000.
|
|
|
|
| Hornet | | Jupiter | | | | Reg. Date | : | 05/05/2013 | | Posts | : | 1,294 | | Location | : | United States |
|
| | Posted : 02 Apr 2015 - 18:26 Post title : Re: Tire Cupping (Re: MickeyBoy) | | | So MickeyBoy your at 92,500 miles on the Bird?
| You'll never be first but you might be next
2014 Commander
| | Post edited by Hornet on 02 Apr 2015 - 18:26 |
|
|
|
| MickeyBoy | | Chaac | | | | Reg. Date | : | 18/09/2010 | | Posts | : | 553 | | Location | : | WiNe CoUnTrY TeMeCuLa, Socialist State of Kalifornia, United States |
|
| | Posted : 02 Apr 2015 - 18:45 Post title : Re: Tire Cupping (Re: NAH) | | | 65,000 miles, heading to 66,000.
12,000+15,000+16,000+18,000+4,500=65,500 miles. I'm at 65,602 on my odometer.
| | Post edited by MickeyBoy on 02 Apr 2015 - 18:48 |
|
|
|
| Hornet | | Jupiter | | | | Reg. Date | : | 05/05/2013 | | Posts | : | 1,294 | | Location | : | United States |
|
| | Posted : 02 Apr 2015 - 18:49 Post title : Re: Tire Cupping (Re: MickeyBoy) | | | Got it, I was just trying to add those tire miles up you posted and thought damn, 92,500 is impressive. 65,000 is good as well.
I never was very good at math.
| You'll never be first but you might be next
2014 Commander
|
|
|
|
| MickeyBoy | | Chaac | | | | Reg. Date | : | 18/09/2010 | | Posts | : | 553 | | Location | : | WiNe CoUnTrY TeMeCuLa, Socialist State of Kalifornia, United States |
|
| | Posted : 02 Apr 2015 - 18:51 Post title : Re: Tire Cupping (Re: Hornet) | | | My bad. I mentioned rear tire mileage in the last sentence since it was mentioned above.
|
|
|
|
| EnGage | | Thor | |  | | Reg. Date | : | 14/07/2009 | | Posts | : | 3,155 | | Location | : | Grand Rapids, MI, United States |
|
| | Posted : 03 Apr 2015 - 01:28 Post title : Re: Tire Cupping (Re: MickeyBoy) | | | Generally, higher pressures will reduce cupping. At least with Metezlers
|
|
|