Horrible mileage out of tires. - Wrist Twisters
 
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post #1 of 13 Old 08-04-2013, 09:37 PM Thread Starter
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Horrible mileage out of tires.

So I've got a 2010 VFR1200 with 4500 miles on the clock. I just got done riding through some intense 100+ degree desert heat for 400 or so miles. After my last stop for gas, my front tire looks to be about shot. Almost no tread left and it looks like the tire is starting to cup. WTF is going on?! I checked the tire pressure and I'm at about 40 psi. I am loaded down with luggage and such, but why the H is my front tire wearing so fast and my rear looks fine? I've got some mountain riding coming up and my front tire has me nervous... I was at better than 50% tire life before I left and now I'm trying to figure out if my bike needs new shoes mid trip.



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post #2 of 13 Old 08-04-2013, 09:46 PM
Need money for parts.
 
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that sucks. seriously wtf. if you come up with any reasons, let us know. also, what kind of tires do you have on there?

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post #3 of 13 Old 08-04-2013, 09:56 PM Thread Starter
just send it.
 
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Stock tires. Bridgestone Battlax. Only thing I can think of would be the heat. The air temperature on my bike was reading 100+ so the road temp was probably higher than that.



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post #4 of 13 Old 08-04-2013, 10:08 PM
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How many miles were on the tire prior to this and which Battlax were they?

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post #5 of 13 Old 08-04-2013, 10:53 PM
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What kind of roads and what tire pressure are you running? EDIT: Nm, finally read that. Seems a bit high. Concrete eats tires a lot faster than asphalt.

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post #6 of 13 Old 08-04-2013, 10:55 PM
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40 psi sounds a lil steep to me... Should be down around 36 max IMO.... And yeah how many miles total on the tire?

I typically get 6k out of front tires and 3k or so out of rears

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post #7 of 13 Old 08-04-2013, 11:32 PM
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Welcome to the world of big bikes. My old Bandit with motor mods could chew out a set of tyres in 5000ks.

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post #8 of 13 Old 08-04-2013, 11:37 PM
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I read somewhere that the rubber in a tire is of a softer compound close to the belting to help with adhesion. Once you wear down to that point you will notice greatly accelerated wear because of that. Weather or not it's for this reason I've noticed this happen on my last two sets of tires. I've left for a ride thinking I was due for a new tire soon and got back home after less than 100 miles showing ply.

40 psi does sound a little on the high side but I don't think that will accelerate wear. I would think it would reduce traction but also reduce wear .

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post #9 of 13 Old 08-05-2013, 02:01 AM
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Lowering the pressure will eat those tires up faster, even more so on a heavier bike that's pulling miles in the heat. I had the 919 at 38F/40R when touring with full luggage and that felt perfect. I can imagine that a heavier combined weight will need a bit more (up to a point of course).

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post #10 of 13 Old 08-05-2013, 03:46 AM
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There was a problem like this that popped up a few years ago with the second gen Avon Storm tires. ST1300 owners were fitting them like the Storm 1s and had them do the same thing - burn out fast, disintegrate or even suddenly fail. Turns out the new Storms *weren't* rated for the weight of a laden ST1300 unlike the old ones. They had to come out with new versions that could take the weight; this isn't the only time this has happened either. Bridgestone has had to come out with versions of some of their Battlax models specifically for heavier bikes.

Could it be that the last time the tires were fitted, they were the wrong Battlax model or weight rating for the 1200? The 'Battlax' name encompasses a LOT of different tires these days and it's an easy mistake to make.




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post #11 of 13 Old 08-05-2013, 09:39 AM
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Quote:
Originally Posted by crakerjac View Post
Stock tires. Bridgestone Battlax.
There's your problem.

Replace them.

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post #12 of 13 Old 08-05-2013, 03:10 PM
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The tires are the only thing between the bike and the pavement. When in doubt, I replace them. I have always replaced them in pairs so there is fresh tread at both ends. Run them at the suggested inflation pressures. Since most of my wear is in the center of the tread, I take a fresh measurement with a tread depth gauge when they are replaced. When it is time to travel, I take another measurement to see how much wear has occurred in the mileage interim giving me an idea as to how much is left down to the wear bar.

I went from an '81 Goldwing getting 20K out of a set of Dunlop Elite II's to the ST1300 and 919 (Michelin PR 2's) with which I am lucky to get 8K.



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post #13 of 13 Old 08-08-2013, 04:18 PM Thread Starter
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Well I'm on the last leg of my trip. My tires now have just over 6k miles on them. I've been running them at the recommended psi (42 front and back). One of the guys I'm riding with got a pretty sweet gash on his rear tire and while the tire was being replaced, we discussed what was going on with my front tire. He said that he sees this often (not a lot, but often) on riders traveling across different climates. Since it was 70 degrees when I left home, the drastic change in temperatures tend to cup tires. After 3k miles in a week, most of the tires on our bikes are about ready to be replaced.



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