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Old 01-09-2005, 11:08 PM   #1 (permalink)
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MU85B16 vs. MT90B16 Dunlop 402 2003 FLHTCUI

I have a 2003 FLHTCUI Ultra Classic in need of a rear tire. The front is okay, so I need to stick with a Dunlop in the rear.

Will the tires from the 2004/2005 Ultra Classics fit on the 2003? I would prefer the deeper tread and higher load characteristics of the newer tire.

Has anyone put the MU85B16 on a 2003 Ultra and had any problems? Apparently Dunlop has a different size in mind.

http://www.dunlopmotorcycle.com/fitmentguide.asp

Harley-Davidson | Model: FLHTCUI (99-03) - Ultra Classic Electra Glide
Tire : D402 | Size : MT90B16

Make: Harley-Davidson | Model: FLHTCUI (04) - Ultra Classic Electra Glide
Tire : D402 | Size : MU85B16

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Old 01-10-2005, 12:31 PM   #2 (permalink)
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Might work.

Quote:
Originally Posted by Beserker
I have a 2003 FLHTCUI Ultra Classic in need of a rear tire. The front is okay, so I need to stick with a Dunlop in the rear.

Will the tires from the 2004/2005 Ultra Classics fit on the 2003? I would prefer the deeper tread and higher load characteristics of the newer tire.

Has anyone put the MU85B16 on a 2003 Ultra and had any problems? Apparently Dunlop has a different size in mind.

http://www.dunlopmotorcycle.com/fitmentguide.asp

Harley-Davidson | Model: FLHTCUI (99-03) - Ultra Classic Electra Glide
Tire : D402 | Size : MT90B16

Make: Harley-Davidson | Model: FLHTCUI (04) - Ultra Classic Electra Glide
Tire : D402 | Size : MU85B16

Thanks
====================
Speaking of the rear tire:

They mentioned somewhere in the literature when I bought my '04 Ultra that the '04 FLHTCUI's were fitted with a 160mm rear tire. (I mean 150mm....oops.) I assume that the MU85B16 that you mention is a 150. I looked in my '04 Touring parts book and the latest fender number that they show has a dash 02A number on it. The swing arm and axle show a dash 02 part number. Assuming that they didn't change the rear fender or swing arm and axle in '03 a 160 should fit.

My guess is that it would work based on part numbers. Like everything else, though, you will never know until you try.

The front should work, IMHO. The fender looks the same all the way back to 1949.

Last edited by newultraclassic; 01-11-2005 at 09:29 AM.
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Old 01-10-2005, 09:17 PM   #3 (permalink)
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Nope, the MU85B16 is the stock tire beginning on the 2003 Heritage Springers and on most of the 2004's and up. It's a 150.
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Old 01-11-2005, 09:28 AM   #4 (permalink)
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Quote:
Originally Posted by Clayton
Nope, the MU85B16 is the stock tire beginning on the 2003 Heritage Springers and on most of the 2004's and up. It's a 150.
=======================
That's right, I meant to say 150. FIrst year on the FLH's was 2004. Should fit on a 2003 based on part numbers.
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Old 01-11-2005, 09:36 AM   #5 (permalink)
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I think the size of the rear belt was changed when HD went with that new size tire. I also seem to remember that Markcuda said somewhere that he put a MU85 on his 03 EG. The different in the width is .31. Probably can be done if the rubber piece on the belt guard at the bottom is trimmed.
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Old 01-11-2005, 10:11 AM   #6 (permalink)
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Quote:
Originally Posted by Ed Y
I think the size of the rear belt was changed when HD went with that new size tire. I also seem to remember that Markcuda said somewhere that he put a MU85 on his 03 EG. The different in the width is .31. Probably can be done if the rubber piece on the belt guard at the bottom is trimmed.
RIght you are about the belt. It has a 2004 part number. (40024-04). So they may well have changed to a narrower belt in '04 to match the 150 tire in the rear.

Last edited by newultraclassic; 01-11-2005 at 05:21 PM.
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Old 01-11-2005, 01:51 PM   #7 (permalink)
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Did you notice it's getting to be nightmare trying to keep up with all the changes from year to year? Ain't no more of the old days when a part from a 10-15 years ago would fit right on a new one. I guess it's good in a way as it's progress the majority of the time.
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Old 01-11-2005, 02:55 PM   #8 (permalink)
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Quote:
Originally Posted by Ed Y
I guess it's good in a way as it's progress the majority of the time.
Not to mention the revenus stream from everyone trying to get 2 extra centimeters
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Old 02-04-2005, 05:55 AM   #9 (permalink)
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Hi,

The sprocket, and belt are the only differences I know of. Someone asked in a later issue of American Iron about this, they said the frame was changed, but I have found no evidence of this. I've called Harley but have found no-one that can or will tell me all the differneces to accomodate the larger rear tire.

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Old 02-08-2005, 05:42 PM   #10 (permalink)
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MU is a 140, not a 150. And it should fit with the belt guard trim Ed mentioned. And note the 85 aspect ratio which will make it about the same height as the front tire.
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Old 02-12-2005, 01:34 AM   #11 (permalink)
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Beserker, just put the mu85 on my 03 E G, needed to trim the belt guard flap to clear, it would spin freely but was right on the tire.The belt is REAL close to the tire, have not rode it yet finishing other work.Gonna keep a close eye on it if it rubs at all I will yank it quick. let you know what happens.

Last edited by twinontwin; 03-29-2005 at 02:27 PM.
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Old 02-14-2005, 06:27 PM   #12 (permalink)
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its a no go on the mu85, just too close to belt, no room for tire flex.fits the 03 EG fine otherwise. the extra load cap and tread depth would have been nice but not worth springing for the narrow belt and pulleys.

Last edited by twinontwin; 03-29-2005 at 02:28 PM.
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Old 02-14-2005, 09:36 PM   #13 (permalink)
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Quote:
Originally Posted by MPZ
MU is a 140, not a 150. And it should fit with the belt guard trim Ed mentioned. And note the 85 aspect ratio which will make it about the same height as the front tire.
Yup, I sit corrected. If you go to the Dunlop site, the tire is a 5.5 inch width or 139.7 mm or 140 tire. My mistake. I guess after this set wears out, I'll try and fit a true 150 on.
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Old 02-15-2005, 12:58 PM   #14 (permalink)
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Just a little tidbit...I put the MU on my 96 FXSTC. At first glance everything was fine. Very close to the belt but still about an 8th inch clearance. After riding for about 50 miles I noticed that the top run of the belt was touching. I have decided to live on the edge and ride it.
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Old 03-28-2005, 10:27 PM   #15 (permalink)
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I also just got a MU rear for my '03 RK, we'll see how it goes.
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