90/90 Metzler 880 rubbing on front fender - Kawasaki Vulcan Forum : Vulcan Forums
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post #1 of 22 (permalink) Old 03-16-2012, 10:19 PM Thread Starter
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90/90 Metzler 880 rubbing on front fender

Okay, I've got a safety question. I've listened to my front 90/90 Metzler tire rub against the fender while pushing it in a tight turn while parking in my garage for the last year. 5,000 miles with 3mm of tread depth still. Today I noticed the left side tire edge (sort of where the tire tread and sidewall merge) has worn down about 2mm or 3mm. Where the edge is forms sort of a '>' shape. The left side is leveled fairly flat now. The pictures don't seem to capture it, but I've added a picture from both sides for comparison. I'm beginning to wonder about having a sidewall blow-out. If you can gather anything from the photos, what do you think? Worry or don't worry?
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09 Orange Vulcan 900 Custom
Mustang Vintage Seat
OEM Engine Guard
OEM backrest
Memphis Shades Big Shot Windshield
Zerk/Button Head mod
Metz 880's 90/90 front, 200 rear
...so far
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post #2 of 22 (permalink) Old 03-17-2012, 01:24 AM
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Quote:
Originally Posted by Heretic View Post
what do you think?
I think the owner's manual says the front tire is an 80/90, and not a 90/90.

I also think tires are the most important safety device on a motorcycle. Blow one out at 75 MPH and it might be the last ride you ever take.

Last edited by siriusjoe; 03-17-2012 at 01:28 AM.
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post #3 of 22 (permalink) Old 03-17-2012, 07:27 AM
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According to Metzeler web site below, you have the wrong size front and rear tires on your VN900.

http://www.metzelermoto.com/web/fitm...8126&consent=Y
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post #4 of 22 (permalink) Old 03-17-2012, 07:42 AM
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In the OP's defense many on this site and others are safely running a 90/90-21 in the front and a 200/70-15 on the rear. That being said, I agree with the poster that said tires are one of the most important items on a bike. I would find out what is rubbing/causing the wear, and replace the tire.

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post #5 of 22 (permalink) Old 03-17-2012, 08:29 AM
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When I bought my ME 90/90 it was listed as a Grade 1 Upgrade - no modifications required. I decided to go for it because Metz doesn't make the correct size in a tubeless. Once I put it on I found that the bike handled much better in turns than with the 80/90 Dunny. The pics here are the 90/90 with about 12k miles on them; no scraping. What's causing the damage on Heretic's bike is the nut on the fender mounting screw. You can see in my pic that it's a tight fit, but if it's rubbing on only one side I suspect that something is bent, pushing the fender off to one side. It would only take a couple of millimeters.
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post #6 of 22 (permalink) Old 03-17-2012, 08:38 AM
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Degreaser, Interesting that when I use the US site http://www.us.metzelermoto.com/web/f...#fitmentanchor they show the stage 1 upgrades.
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post #7 of 22 (permalink) Old 03-17-2012, 08:42 AM
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You're using the wrong size of tire on the front.
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post #8 of 22 (permalink) Old 03-17-2012, 08:45 AM
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Well, it's obvious to me seeing pictures that the 90/90 front tire on the 900 is the wrong size to use.
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post #9 of 22 (permalink) Old 03-17-2012, 08:59 AM
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Degreaser, technically you're correct. The 90/90 gets too close to the fender without modifications but the fact that Heretic is only seeing an issue on one side and Metz shows this tire as a no-mod upgrade, I still think something on his bike is out of whack. Also, I did not upgrade my rear tire so the slightly wider front tire keeps the front and rear closer to the same plane while leaning and that makes for a more stable turn.
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post #10 of 22 (permalink) Old 03-17-2012, 11:38 AM
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I went with the Night Dragons and the front started rubbing when I was at speed. I elongated the mounting holes to the fork tubes and positioned the fender evenly, front to back with the tire. No problem since. I also run the 200 on the rear for two reasons. One, to bring the revs down at highway speeds and two, it just looks cool.
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