Strange Tire Wear

[Vegas]

Looked off center to me.... if not, then scratch my rambling.

 

[LDO]

Looked off center to me.... if not, then scratch my rambling.

I will try to get better pictures of the tire this weekend. Those pics were of my old tire before I changed out.

My owner's manual states 40psi in the rear tire. Wouldn't be the first time the manual was wrong though.

Maybe at 155 lbs, I just don't weigh enough to 'mash' the tire down and need to drop the pressure (or eat more!)

 

[Chris04Masitff]

im bout 190. run mine 40 also.but most my ridin is two up w wife

 

[twowheel99]

What you say makes sense to me Vegas but my 'flat spot' is down the center of the tire.

So, the air pressure issue also makes sense but I'm really good about checking it (every week). I put about 150 miles on my bike just in riding to work every day so I make damn sure my pressure is right.

LDO, it could just be a scuffing issue, what I mean by that is you have a small tire out front and a wide tire in the rear. As the rear tire rolls through the front tires footprint whether it is taller or wider there is a slight scuffing action. It's not so noticeable at first but after several thousand miles you will begin to notice the flat spots. I've seen it alot on over the road tractor trailers that hinge behind the tractor, not much difference the way a motorcycle hinges between the front forks and the rest of the frame. Keep in mind this is just my opinion, but after attending alot of tire mfg. schools and having it drilled in my head it starts to make sense. I wish I knew more about computers and how to do a demo to show you, but trust me it's happening only to a smaller degree. Air pressure also affects it because at the proper air pressure the tire either grows or shrinks and that equalizes the travel distance or the two tires & wheel assy.
2

 

[Chris04Masitff]

hey folks . i just ordered new Avon Cobra 240 40 18 . well see how i like it in a few days. Found it at Competition Accessories for $216.70 delivered.

 

[Baldielox]

It's because you spend more time riding upright than in turns, therefore you will have more wear up the center. My Harley only has a 160 rear tire, and it also has a flat stripe up the middle, it's just not as noticeable on the skinnier tire.

- B

 

[Chris04Masitff]

i see alot of bikes come in and out here at work (inspections ) . i been askin and it seems to be on average most guys i ask get about 10,000 miles out of any tire . im feeling better today bout 9000 i got out of mine.

 

[PacoPetty]

Mine lokks worse than that and I only have 3900 on it. I weigh 275 ride alone and run it at about 20 lbs and the mechanic told me to run even less.

 

[Nomad2day]

I really don't understand how you get that many miles out of one tire on a 300mm. I get about 3500 miles and it is shot.... No tread in the middle just flat with buldges like in the above pics.....
Here is a few tire shots off of my 07 Bulldog that has been massaged..
Nothing like a good running scooter..
Neil

 

[reloaderbmg]

've got 12,000 miles on my rear tire and I run 30 lbs. pressure in it. I think that they are wearing like that in the middle because every one is running to much air in them. Im staying with 30 lbs. and like I say I've got 12000 on mine and still going. Letting pressure out puts more rubber on the ground.

I ran 30psi in the rear of my k9 and got real bad wear in the middle !
at 40psi now and a lot better

 

[Brew]

Neil, either you have bad roads where you live or you spin that tire alot. I got 10,000 miles out of my last tire and still could have gotten even more if it weren't for a huge nail that I picked up. Are you sure you didn't over inflate that tire?

 

[RRRUFF]

Ride roads with more twisties. Too many miles going straight.:roll:

 

[Five Five]

Guys, notice that its not the flat spot that all wide tires suffer from but it the thread seperation above it. Look at the picture closely and see the bulge.

Good call Ray....if you look closely at the profile you can see the buldge...:2thumbs:

 

[bdmridgeback]

My buddy went through 6 of those Metzlers in 2 years without burning them off! His wore just like that. I have never had a problem with my Avons. I would never run a Metzler, they are for sport bikes in my book!

 

[BBChopper]

I run 40 and got 12k out of mine. :2thumbs:It was square though!!:roll:

 

[BBChopper]

My buddy went through 6 of those Metzlers in 2 years without burning them off! His wore just like that. I have never had a problem with my Avons. I would never run a Metzler, they are for sport bikes in my book!

Shit I just put Metzlers on the Ultra!!!!:bang:

 

[KaptinAmerika]

My Metzlers are wearing funky.
06 K9
Bike pulls to right slightly

Any ideas?

 

[KaptinAmerika]

Low tire pressure maybe. I run 40 but of course I weigh 325 so maybe I should be running at 44 or 46??

 

[Chris04Masitff]

Curtis . mine wore just like that only opposite pattern .Mine wore more on right side than left/. my Avon is not doing that so far. i believe Metzlers seperate belts... dont know- just my opinion.

 

[KaptinAmerika]

Thanks Chris
From what I have seen and heard it looks like BDs just don't like Metzs. I think I will be switching back to Avons next go around. How many miles did you get out of your Metzs? Are you running Dyna Beads?