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Author Topic: 407 Rear Tire Cupping @ 4,500 miles  (Read 5627 times)

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Dan_Lockwood

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407 Rear Tire Cupping @ 4,500 miles
« on: April 18, 2010, 10:06:04 AM »

I have a '09 SERG.

I've gone through the threads and search this question, but most say that D407F rear and D408F front is the setup the MOCO goes with.

I seem to be getting more than what I would consider normal cupping on the rear tire, which is a D407F.  The bulletin only discusses the front tire issue.

Has anyone had any luck with a replacement for the rear?  Are D408F's available for the rear?

Thanks.
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hdbrad03

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Re: 407 Rear Tire Cupping @ 4,500 miles
« Reply #1 on: April 18, 2010, 12:39:12 PM »

My rear D407 was renewed under warranty for cupping and it really sang and vibrated in curves. The tire had 3/32" cupping. I far as I know there are only D407's for the rear.


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GtreetSlide

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Re: 407 Rear Tire Cupping @ 4,500 miles
« Reply #2 on: April 18, 2010, 08:33:12 PM »

from all I have talked to, the pressure made a big difference on how fast the tire cupped. Higher pressures have less issues with cupping. Not sure about the rear tire, I'd take it in and complain of vibration..

jb
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cahdbiker

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Re: 407 Rear Tire Cupping @ 4,500 miles
« Reply #3 on: April 23, 2010, 07:23:20 AM »

Dan_Lockwood, I am at 6500 miles on my 09 SEUC with no cupping so far. I keep 36 lbs as per owner's manuel ( mostly two up riding ) and check it at least once every two weeks. Some guys I have talked to said to kick it up to 40 lbs in the front. I haven't tried that yet, but if you are already getting some cupping some of the guys on here recommend going to the dealer and complaining about " vibration " . Also I got a  Dunlop catalogue(Dunlopmotorcycle.com) and they are coming out with a new tire called an American Elite. (someone already has a thread on it ). I am waiting for some input on how they perform, but that might be a while since I don't think they are available till later this year. Good Luck CAHDBIKER
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UFO_HOG

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Re: 407 Rear Tire Cupping @ 4,500 miles
« Reply #4 on: April 23, 2010, 11:10:44 AM »

I started running 41 psi front and 42 psi rear at the last tire changes. (Max pressures listed on tires) I also switched to Dyna-Beads in both tires. The front tire 408 is close to 9k with no cupping at all and equal wear center to sidewall, the rear is pushing 8k and is cupping, but not at the point where it is too annoying, yet. I think I'm switching to Metzeler's soon, always liked them before.
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grc

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Re: 407 Rear Tire Cupping @ 4,500 miles
« Reply #5 on: April 23, 2010, 04:20:10 PM »


I won't profess to have the inside scoop on this subject, but in my reading I've come across other brands of bikes with Dunlop dual compound technology tires that also seem to have fairly severe cupping problems, including sport bikes.  So the rear tire cupping may have nothing to do with air pressures, tread patterns, or lousy suspensions.  It may just be lousy tires, period.  It wouldn't be the first time in history that a company brought out a product before proper testing and debugging were completed.


Jerry
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GregKhougaz

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Re: 407 Rear Tire Cupping @ 4,500 miles
« Reply #6 on: April 23, 2010, 04:32:03 PM »

Dan, 

       MoCo replaced both my front and rear tires though is was a pain. 

       See here:  New SERG Front Tire " Warranty" Replacement.

GK
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kevdon

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Re: 407 Rear Tire Cupping @ 4,500 miles
« Reply #7 on: April 23, 2010, 08:04:20 PM »

ok, i thought my rear tire was the only one cupping. i sent moco five pictures of my rear tire and their response was that i was running   the tire under inflated or overloading the bike, just ride it, they said. so then i called them on it and they said to take it to the dealer and have them ride the bike and see if they could hear the noise it was making. there response was there is no record of the rear tire issues so it must be of my making. what you are seeing in the picture is a 12in. tie strap taped to the tire to show the cupping.
« Last Edit: April 24, 2010, 10:10:16 AM by kevdon »
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guppytrash

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Re: 407 Rear Tire Cupping @ 4,500 miles
« Reply #8 on: April 23, 2010, 11:13:29 PM »

I wish they had a 408 for the rear.  I need a new rear and hate to buy another tire I know is going to sing after about 5-6k.
Those who have used the Metzler are saying they are not lasting to long.
No other choice until the new Dunlop elite is available...and I have been told end of August for that.

I swear a 408 IS a 407 with the direction arrow turned around.
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grc

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Re: 407 Rear Tire Cupping @ 4,500 miles
« Reply #9 on: April 24, 2010, 09:10:37 AM »

ok, i thought my rear tire was the only one cupping. i sent moco five pictures of my rear tire and their response was that i was running   the tire under inflated or overloading the bike, just ride it, they said. so then i called them on it and they said to take it to the dealer and have them ride the bike and see if they could here the noise it was making. there response was there is no record of the rear tire issues so it must be of my making. what you are seeing in the picture is a 12in. tie strap taped to the tire to show the cupping.

That's the response from the MoCo that has always got me fired up.  When they immediately blow everyone off who complains of any particular issue, there obviously won't be a record of a problem.  Only when they actually make, or attempt to make, repairs do they generate records and statistics that would indicate to the aces in Milwaukee that something isn't quite right.  Harley has made a real science of the "hear no evil, see no evil" method of avoiding responsibility.  I think it's a requirement to be blind and hard of hearing if you want to work for their customer disservice organization.

BTW, that same BS response has been used in every single issue I can think of all the way back to the original Twin Cam bearing problems.  Initial reaction is always some variation of the, "Problem, we don't see no stinkin' problem" response.  If the people accept it and give up, they give each other high fives and go back to surfing porn sites or whatever they do.  If enough people make enough noise and start to give them some bad publicity, they break out the ol' "We are unaware of any issue, but are investigating" response.  That drags on long enough for another batch of customers to give up, and then when the remaining folks get testy they finally come out with some BS bulletin that basically blames the situation on the rider or a full moon or anything but them, and makes it sound like they are offering up a "fix" just out of the goodness of their hearts and not because they are peddlers of crap.  The "fix" they offer up is normally the cheapest possible alternative, and is often nothing more than a bandaid.  My favorite was the cam bearing fix, which was no fix until your bearings actually failed.  The fact that you might suffer a crash due to the failure, or be stranded in east bumf$%*, didn't seem to bother them a whole lot.  And that program was under an earlier management team that was more customer friendly than what we've seen the past few years.

I still think all you folks with these tire issues would do yourselves and the others similarly affected a big favor if you visited the NHTSA web site and filed a complaint.  You may not get anything out of it personally, but eventually when the number of complaints gets big enough the folks at NHTSA will at least question the folks at Dunflop and H-D, and perhaps that alone will cause those two companies to take action.  JMHO.


Jerry
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guppytrash

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Re: 407 Rear Tire Cupping @ 4,500 miles
« Reply #10 on: April 25, 2010, 08:46:57 PM »

Just took my rear wheel/tire off to take to the dealer to get a new tire.  I cant believe how cupped this tire is.
Not so bad in the middle but somewhat of a paddle tire as soon as you get past the center.
Not bad on the mileage though at 12500. 

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guppytrash

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Re: 407 Rear Tire Cupping @ 4,500 miles
« Reply #11 on: April 26, 2010, 08:33:09 PM »

New D407 on the back.  Wow what a difference!  
The dealer was amazed at how bad the old tire was cupped on the edges.
Went with dynabeads again.  Now I have them front and rear.  These are fantastic...I have never used dynabeads until reading about them here.  
Now one of their biggest fans.

It will be interesting to see if the dynabeads help with the tire not cupping.  Not planning for this but it would be a nice bonus.
Also the dealer put 38psi, in it and I upped it to 41psi and will maintain that to try and help with the cupping.

 
« Last Edit: April 27, 2010, 06:05:22 PM by guppytrash »
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09S/E roadglide

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Re: 407 Rear Tire Cupping @ 4,500 miles
« Reply #12 on: April 26, 2010, 09:17:31 PM »

The rear tire on my SERG is cupping as well. dealer told me... yes we see its cupping...we will call the moco. the moco and dunlop told me there was nothing they could do for me. so Im just trying to decide what tires to replace them with. preferably not dunlops since they were so eager to help me. :nixweiss:
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guppytrash

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Re: 407 Rear Tire Cupping @ 4,500 miles
« Reply #13 on: April 26, 2010, 09:34:38 PM »

The rear tire on my SERG is cupping as well. dealer told me... yes we see its cupping...we will call the moco. the moco and dunlop told me there was nothing they could do for me. so Im just trying to decide what tires to replace them with. preferably not dunlops since they were so eager to help me. :nixweiss:
I hear ya, and I felt the same way.  Just not many options yet and then I figured I did get 12500 out of the original D407.  They did replace my front 407 with a 408 and should at least do that for you.
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09S/E roadglide

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Re: 407 Rear Tire Cupping @ 4,500 miles
« Reply #14 on: April 27, 2010, 12:02:17 AM »

it has the 408 on the front already and its fine.
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