KawRider
Expert Class
Posts: 329
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posted May 19, 2002 06:41 AM
Near-New D207 Chunks Itself on me!!
I have maybe 300 or so miles on a rear D207 on ZX12R. I took it on a fairly speedy trip to Heidelburg (abou 60-70 miles) at about 100-130 MPH (Autobahn. There were about 2-3 blasts up to 170MPH or so. Just short blasts, then back to cruising velocity of 100-130. The bike started feeling a bit loose from the rear towards the end of the trip. I thought something might be wrong in the suspension. I even stopped to make sure everything was tight. I found no problems with the suspension... didn't think about checking the rear tire. took her the rest of the way into town at a fairly low speed. Averything seemed to be OK until I got on her in 1st gear. The tire just spun like crazy, I thought there might be oil on it or something. I pulled to the side of the road, and she was just about flat, with a couple huge chunks of rubber out of her. If I get a chance, I will post some pics. Scared the crap out of me. I have a hunch what might have caused this:
I was running a FEW PSI (Maybe 31-33) lower than stock on both front and rear tires. I guess the tire just got really hot, and failed? I kno running them lower pressures causes more heat, but I really didn't think that was low enough to cause a failure? I have gone on this exact same trip, at the same speeds before with no problems what so ever. Anyone with some knowledge care to chime in?
Anyways, I will be replacing both front and rear with 010s this coming week. It was a pain in the ass to get someone to come down and trailer me home but I sure am thankful that it didn't cause a crash!
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Tim
Black ZX-14
  
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PaulVincent
Expert Class
Posts: 135
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posted May 19, 2002 10:22 AM
Tim, Until yesterday I had only run 207s, and I never had a problem such as this. But, I always keep mine inflated to 41-42 lbs. And yes, I have taken it up at least to the speeds you hit on the Autobahn.
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KawRider
Expert Class
Posts: 329
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posted May 19, 2002 11:14 AM
Tire Pressure
I guess I will be keeping the pressure at the factory reccomendation from here on out. I was running it a bit low for added traction.... I am aware that this creates more heat in the tires... but I wasn't running them THAT LOW??? Maybe I had an imperfect tire, and the lower pressure/higher speeds just aggrivated the problem? I guess I will never know. It was sooooo scary seeing the tire chunked up like that, just coming off the Autobahn.
Lesson Learned... I will stay VERY close to the reccomended pressure.... and Im going to try some other tires to hopefully last longer.
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Tim
Black ZX-14
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12RPilot
Pro
Posts: 1094
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posted May 19, 2002 06:56 PM
I think if you stay around 38 psi you will be OK. BTW, I expect to be in Heidelburg this fall. Wonder what it would cost to bring my 12?
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If you aren't an AMA member, you're part of the problem.
NESBA #209
http://www.bikepics.com/members/12rpilot/04zx10r/
 
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Rocket J
Zone Head
Goes to water over a dummy!!!
Posts: 602
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posted May 19, 2002 08:27 PM
You ever wonder...
Why a country that has roads like the Autobahn, has car manufacturers like Porsche, Mercedes, BMW and Audi, wants to limit the top speed on motorcycles?
Rocket
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If I get any smarter, my head will explode!
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kawrider
Expert Class
Posts: 329
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posted May 20, 2002 12:52 AM
Heidelburg
quote:
Wonder what it would cost to bring my 12?
A lot of money... way too much. The weather takes a big old nasty crap in the fall. If you are going to be here a while, it would be best to rent. You can email me when you get closer to coming over here, and maybe we can get a beer or something.
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Tim
Black ZX-14
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12RPilot
Pro
Posts: 1094
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posted May 20, 2002 04:28 AM
Sounds like a plan, Kawrider.
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If you aren't an AMA member, you're part of the problem.
NESBA #209
http://www.bikepics.com/members/12rpilot/04zx10r/
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EastBayDave
Needs a job
Posts: 2245
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posted May 20, 2002 05:44 AM
quote:
Why a country that has roads like the Autobahn, has car manufacturers like Porsche, Mercedes, BMW and Audi, wants to limit the top speed on motorcycles? Rocket
Because the legistrators that proposed these laws are tired of driving their $100K Benz & Beemers getting blown off the road by ZX12R's !!!
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Enjoy the ride!
02' ZRX1200
00' ZX12R sold
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Ballisticzx12r
Zone Head
& Deals Gap Board Member
Posts: 940
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posted May 20, 2002 06:20 AM
Short and Sweet
I have those tires on they where stock on my 02.
1750 miles of hard riding at DGIII last week and the rear is shot. I have never liked them and wonder why Kaw. doesn't change suppliers.
Bart
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Be fast and Be safe
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