Should I get a new rear tire? - Wrist Twisters
 
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post #1 of 12 Old 07-18-2007, 08:28 AM Thread Starter
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Should I get a new rear tire?

Since I'm getting ready for a ~2200 mile trip in August, I was inspecting my tires. I have about 4200 miles on the stock rear ('06 919), and I'm thinking I probably need to get a new tire before I go. So first question, what is safe tread depth for motorcycle tires? I do have a little tread depth left, but I also have a flat spot in the center of the tire (darn you, straight MO roads!!), so there's not much left in the center. The front tire looks fine to me, which is consistent with reading other 9er tire threads here.

Assuming I need a new rear tire, that raises some more questions, namely, since the average (it seems) tire changing ratio is 2 rear : 1 front, should I stick with the same OEM tire now, or is it OK to switch to a better tire on the rear?

Don't need to know what kind of tires to put on, I can read that on other threads, just don't know if its a good thing to put different tire types on front and rear. Thanks in advance.

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post #2 of 12 Old 07-18-2007, 08:44 AM
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Quote:
Originally Posted by cmelnick View Post
Since I'm getting ready for a ~2200 mile trip in August, I was inspecting my tires. I have about 4200 miles on the stock rear ('06 919), and I'm thinking I probably need to get a new tire before I go. So first question, what is safe tread depth for motorcycle tires? I do have a little tread depth left, but I also have a flat spot in the center of the tire (darn you, straight MO roads!!), so there's not much left in the center. The front tire looks fine to me, which is consistent with reading other 9er tire threads here.

Assuming I need a new rear tire, that raises some more questions, namely, since the average (it seems) tire changing ratio is 2 rear : 1 front, should I stick with the same OEM tire now, or is it OK to switch to a better tire on the rear?

Don't need to know what kind of tires to put on, I can read that on other threads, just don't know if its a good thing to put different tire types on front and rear. Thanks in advance.

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post #3 of 12 Old 07-18-2007, 08:47 AM
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Had about the same mileage on my bike this month and a rear tire that had some flat spots. With a long weekend ride coming up, inspection next month, so decided to spring for Pilot Roads front and back. Glad I did -- love the PR's. It's not worth risking a flat on the road. I wouldn't advise switching brands front and rear if it can be avoided.

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post #4 of 12 Old 07-18-2007, 08:49 AM
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Don't mix-n-match tires on a motorcycle unless absolutely necessary under emergency situations. We only have two tires, and they both need to be operating at peak proficiency to keep our asses glued to the road. Tires are the one maintenance item that we should pay the most attention to, and in your case with a 2200+ mile trip upcoming with multiple twisty sections, they count even more. Replace them both, and ride without worrying about tires and grip.

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post #5 of 12 Old 07-18-2007, 08:51 AM
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Assuming you have Michelin hi-sports, there is a good chance the front tire will begin to show signs of cupping. Do yourself a favor and replace both tires.

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post #6 of 12 Old 07-18-2007, 08:52 AM
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Quote:
Originally Posted by RidgeRunner View Post
Don't mix-n-match tires on a motorcycle unless absolutely necessary under emergency situations. We only have two tires, and they both need to be operating at peak proficiency to keep our asses glued to the road. Tires are the one maintenance item that we should pay the most attention to, and in your case with a 2200+ mile trip upcoming with multiple twisty sections, they count even more. Replace them both, and ride without worrying about tires and grip.
Couldn't have said it better. I've neer really believed in the 2:1 front to rear ratio. I mean my Triumph makes some serious torque and I can spin the rear coming out of a corner pretty easily and I have to replace both tires at the same time. Granted the front isn't as far along as the rear, but once you throw a new set of stickies on there you won't believe you were riding with tires so worn.

Replace both. Michelin Pilot Powers for the win.

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post #7 of 12 Old 07-18-2007, 08:59 AM
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Replace both. Michelin Pilot Powers for the win.
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post #8 of 12 Old 07-18-2007, 08:59 AM
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I ride to the tread bar, center of rear tire. I don't even get 4000 miles out of my rear tire. I am a lost little lamb in the woods.



Spring for a new one if you think the tire will be history during your trip. No need in setting yourself up in a service bay during the middle of your adventure, unless you want to drink old coffee from paper cup.

Ohhhhh and have a great trip!!!!!!!!!

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post #9 of 12 Old 07-18-2007, 09:08 AM Thread Starter
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Spring for a new one if you think the tire will be history during your trip. No need in setting yourself up in a service bay during the middle of your adventure, unless you want to drink old coffee from paper cup.
As much as I do love crappy coffee, I don't like paying someone for something I can do myself, and I do have a friend who has all the equipment for mounting and balancing tires here. My guess is that if they look like they do after 4.2k miles, then another 2.2k miles will mean a blown tire.

Going to order a new set, front and rear, probably Pilot Roads. Gonna go do some more WT reading before I make my decision, though

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post #10 of 12 Old 07-30-2007, 07:30 PM Thread Starter
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Yea, I needed tires. Get put on tomorrow.

Flat


Metal


At the wear line


Cupping


We call the above MFRS (Missouri Flat Road Syndrome)

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post #11 of 12 Old 07-30-2007, 08:20 PM
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Right now, I have close to 6,000 miles on a set of Metzler Roadtec Z6s, and they are mostly interstate. I think I can get anoter 1-2 thousand miles out of them, even on the rear. I may even be able to go further on the rear, time will tell. The front looks untouched.

$/mile on them is really good, and they continue to handle well all the way through the wear.

Sounds like you already have yours picked out. Good luck to you and be safe on your trip.

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post #12 of 12 Old 08-05-2007, 09:32 PM Thread Starter
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Broke my new tires in this week, then took them for 200 miles, about 100 of those through the twisties. Went riding with a Duc monster, a 'busa and a couple other bikes. I kept up quite nicely, thanks (well, at least in the twisties...i mean, c'mon...it's a 'busa). Lovin' the Conti Road Attacks...

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