rbert
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« on: August 04, 2009, 03:02:48 PM » |
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I am on my first car tire. I started out with 36 psi then tried 32psi and now am at 28psi. I liked the feel and handling at 36 and 32 but after 10,000 miles I started to see that the center of the tread is wearing quite a bit more than the outside. The center is worn over 1/2 way. I lowered the pressure to get it to wear on the outside, but now it feels a little mushy. Did I do the right thing by lowering the pressure?
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Daniel Meyer
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Posts: 5492
Author. Adventurer. Electrician.
The State of confusion.
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« Reply #1 on: August 04, 2009, 03:06:03 PM » |
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I am on my first car tire. I started out with 36 psi then tried 32psi and now am at 28psi. I liked the feel and handling at 36 and 32 but after 10,000 miles I started to see that the center of the tread is wearing quite a bit more than the outside. The center is worn over 1/2 way. I lowered the pressure to get it to wear on the outside, but now it feels a little mushy. Did I do the right thing by lowering the pressure?
I run 34-38 and see fairly even wear.
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CUAgain, Daniel Meyer 
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MP
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Posts: 5532
1997 Std Valkyrie and 2001 red/blk I/S w/sidecar
North Dakota
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« Reply #2 on: August 04, 2009, 03:15:20 PM » |
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I run 26-28, and love the ride and tire wear. Some run up to 65#! WOW
MP
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 "Ridin' with Cycho"
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Bone
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« Reply #3 on: August 04, 2009, 03:43:00 PM » |
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Long, long ago I had a 52 Harley Panhead / rigid frame. If they had tubeless tires I hadn't heard of them. I would lower the rear tire air pressure (really low) for a tiny bit of suspension  . No shocks on the rear but always a new inner-tube with every tire change. I'm running 36 on my Valk.
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kipmilam
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« Reply #4 on: August 04, 2009, 06:15:33 PM » |
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I have run my toyo 205/55-15 at 32psi since new. It now has 32k on it, has worn evenly and is due for replacement.
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timk519
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« Reply #5 on: August 04, 2009, 07:58:48 PM » |
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I run a Michelin Primacy "V" rated tire, and found 33 psi _hot_ does the trick for me. Cold pressure is down around the high 20's (~28 psi).
I would note that my tire pressure varies by up to 4-5 psi from start of day to being on the road for an extended period of time. If your stated pressure is it's cold pressure, then it could be running at a higher pressure after you've been on the road for a while, which may contribute to the tread wear.
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AussieValk
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« Reply #6 on: August 06, 2009, 10:28:51 PM » |
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Not trying to hijack the thread, but I'm looking at putting my first car tyre on and from the specs of the few tyres that i can find down here (Australia - home of the camel killers  ) it looks like they have a minimum rim width of 5.5". What width is the Valk rim? I thought it was only 5". Will this be a problem? Looking at a Yokohama V550 or S-Drive.
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dipstick
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« Reply #8 on: August 07, 2009, 10:52:51 AM » |
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I put 34psi in mine,, the reason the center of the tread wears more on a MC with a car tire is that the centrifical (sp?) force bulges the middle of the tire out more on a bike than it does on a car. Thus wearing the center out first. There was a good video of a Gold Wing with an under mounted camera showing this on you tube.
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Ken Tarver
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« Reply #9 on: August 07, 2009, 08:07:01 PM » |
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Goodyear Assurance Triple Tread 205/60-16 34psi-COLD 
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fudgie
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Posts: 10613
Better to be judged by 12, then carried by 6.
Huntington Indiana
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« Reply #10 on: August 08, 2009, 02:50:55 PM » |
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I have mine at 36 or 38 psi. Last week we were fully loaded and it looked low. Couldn't find my gauge and no other bikers had one. I put some in it till it looked good. Found my gauge and it blew up on me.  Figured for a faulty gauge. After a few hundred miles and a next day I checked it with a real gauge and it showed 50 psi!  It rode really good for that amount. But I lowered it down to 38.
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 Now you're in the world of the wolves... And we welcome all you sheep... VRCC-#7196 VRCCDS-#0175 DTR PGR
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Kilroy
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« Reply #11 on: August 08, 2009, 06:29:06 PM » |
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This is a very interesting thread. I have about 1200 miles on a Potenza G019 Grid. Like it alot. Started out at 36, dropped it to 34, then 32 now at 30. I took the pressure after riding for awhile and it was 34. I think I will stay at 30 cold pressure, handles well and is comfortable. i think the key is the pressure after you ride awhile. Good luck, to each his own. Kilroy
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"I was here, but now I'm gone"
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timk519
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« Reply #12 on: August 08, 2009, 06:42:15 PM » |
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I'm thinking I'll have to increase my cold pressure, because 26-27 lbs results in more squiggly-ness than I care for in my ride. But 30-33 is absolutely great!
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