Bridgestone Potenza Pole Position RE960AS runflat ride report - Page 2 - GL1800Riders
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post #11 of 29 (permalink) Old 08-18-2016, 02:48 PM
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Wow , that's quite a title I inherited .


Oh my. You are going to need a bigger hat ... To print that title on!

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[B]Michelin Primacy Alpin PA3 195/55/16 / [COLOR=#000000]Yokohama Avid Envigor ZPS
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post #12 of 29 (permalink) Old 08-29-2016, 03:41 PM
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Looking forward to trying out the Yoko, have some longer rides coming up and another Texas IBA next month.[/COLOR]


Again - thanks to all who responded.
.[/QUOTE]

Jerry. I was wondering if you got the YOKO mounted and if so your impressions so far?

I've put a couple of hundred miles on mine and really like it! Anxious to see how it does 2 up pulling a trailer to Montrose and back, plus spirited riding while there.

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post #13 of 29 (permalink) Old 08-30-2016, 03:06 PM Thread Starter
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Jerry. I was wondering if you got the YOKO mounted and if so your impressions so far?

I've put a couple of hundred miles on mine and really like it! Anxious to see how it does 2 up pulling a trailer to Montrose and back, plus spirited riding while there.

Yes it is mounted, my one dollar disposal fee is paid for tossing the old tire, and I'm good to go. Tire is doing well so far, will be putting some mileage on over the next couple of weeks, then off to Texas and Louisiana and points in-between (about 3k miles of smiles coming up ) As I pull a Bushtec - I could probably ride a truck tire and wouldn't notice much difference with or without the trailer attached .


Even though I'm retired (yay) - I'm not sure when I had the time to work Working the County Fair this week, moving 44 tons of topsoil around this coming weekend, just restained some furniture, repaired two electric motors - just haven't had much time to do anything more than short rides. But so far - I'm liking the tire. Handles well 2-up. I've got some mileage scheduled for next week - I'll post an update then.
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post #14 of 29 (permalink) Old 09-14-2016, 08:07 AM
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Thank you for the tire report. I've got a PA3 that is down to the tread bars after just 10,000 miles. I usually run it at 32psi, though I bumped it up when my wife and a full load of luggage was aboard. However, I do run at above average speeds, and I ride in the Texas heat when you don't see anyone else on a bike. So I guess I'm tire shopping once again. I was really happy with that tire, too. Even with the comparatively low mileage, that was twice what I would usually get out of a rear tire (have the Battlax on the front). I think it saved my bacon a couple of times, and was great on bad surfaces, such as gravel, mud, rock, heavy rain, sand, etc. I am not comfortable with the asymmetrical tread patterns. I tend to push a bit too hard in the twisties and I don't want to experience any difference between left and right. The Yoko, Bridgestone, and even the Dunlop seem worth considering.

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post #15 of 29 (permalink) Old 09-14-2016, 10:15 AM Thread Starter
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I've put some mileage on the Yoko now, and I'm glad I followed @Rail32 's suggestion to use it vs. the Driveguard I was contemplating. Good tire, nice transitions in the corners, comfortable two-up riding (compared to harder MC tire). We'll see how the mileage goes - but that's not my main consideration for a tire.
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post #16 of 29 (permalink) Old 09-14-2016, 01:04 PM
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On my bike the driveguard was good but yoko is slightly better. Usually run 27 to 30 psi on my tire gauge at 70 degrees cold. Mileage was about the same on both. Also have the Yoko on Harley Ultra.

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G709 @ 39 psi
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post #17 of 29 (permalink) Old 09-14-2016, 10:47 PM
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See. That's what's good about forum. I personally didn't like the yoko. Like alpine or drive guard better. 26/27 lbs. course when I get the training wheels off my opinion mite change😉

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post #18 of 29 (permalink) Old 09-14-2016, 11:51 PM
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Well I just gotta ask.... Total thread hijack

this is coming from the truck club world ( diesel performance ) and towing our RV. The tires are rated at a max load capacity, and the tires have a max psi rating. General rule was to pump your tires up when towing and you got that big load on back, especially the camper guys. The tires have a max load rating but I didn't think that was at any ole psi. I always thought that was at max psi. Some guys even take the max load divide by max psi and come up with a weight per lbs value. Then figure out the empty weight of the truck versus the loaded weight and calculate the psi tire pressure to use when running empty. I even went as far as running over the scales and getting the weight on the front and weight on the rear and using different F/R tire pressures. And I got great mileage out of them. Well as long as I as not getting to crazy with burnouts....

I can understand one of the advantages of the CT is the increased load capacity considering the weight of the wing etc. But I guess I don't see how we get that running 28psi for example. Doing the math the truck guys would use my Alpin PA3 ZP says on the side 1201 lbs (??) and 51psi as max. That would mean 23.5 lbs per psi. Lets assume the wife and I loaded down heading on the road at 1000lbs on the rear tire. That is 42.5 psi I should be running. Of course we are not using that. At least I am not, based on what I read here.

I guess I just see everyone discussing what psi to use based on how it feels, now it handles and wear considerations. Pumping it up for the twisties and lowering it for regular use, etc. What about the air pressure and how it effects the load capacity of the tire. -- Yes I know its a run flat. Yeah the tire can run with 0 air pressure. Yeah, like 50 or 100 miles. They don't last 10K or 20K on 0 air pressure.

So the question becomes is it realistic to expect 83% of the tires max load capacity, when only running 63% of its max air capacity (32psi)?

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post #19 of 29 (permalink) Old 09-15-2016, 01:19 AM
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REASON I RUN 26/27 IS SO TIRE WEARS MORE EVEN. IF IN TWISTIES AS YOU STATED I TRY N BUMP TO 32 SOME ON HERE WILL GET MORE TECHY ON YOU. AS MORE DRAG ON TIRE SHOULD GET TIRE HOTTER TEMP SO WOULD BELIEVE IT GOES UP IN PRESSURE. DONT THINK YOU CAN COMPARE TO TRUCK WEIGHT ON TIRES. ON MC THE CT WITH LESS AIR STILL SAFER THAN MT ( IF RF) BECAUSE OF THE STIFFER SIDEWALL. KINDA WHAT WORKS FOR YOU. ALL THE "OVER THINKIN" NOT REALLY CHANGING ANYTHING

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post #20 of 29 (permalink) Old 09-15-2016, 02:46 AM
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Personally I don't see why the same theory does not apply. just seems unrealistic to me to expect a tire to hold max weight or close to that, at only half of its rated air capacity.

One thing I read this evening, on tirerack.com about load ratings, is truck tires come in Load range C, D, E, etc. Each has its corresponding max air pressure, C=50psi, D=65psi, E=80psi.

On passenger car tires they says most are designed around a Standard Load rating at 35psi air pressure. And generally they don't mark anything on the tire for Standard Load rating. NO marking means SL. Then there is the LightLoad rating (LL still 35psi) and a ExtraLoad (XL at 41psi). And the 51 psi I read on the side wall is the max inflation pressure. And so "if" the 1201 lbs max load is really at 35psi of the Standard Load rating, then we are in really good shape running the classic 32psi most cars do. And probably why most cars are 32psi. -- 1201 / 35 is 34.3 lb per psi. My 1000lb load should only need 29.1psi going by the above formula. Probably why 26/27 gives best wear on a weight of a GL1800. The 32psi many like to run is well above whats needed for load support. -- Assuming 51psi is max inflation pressure and 35psi is Standard Load pressure.

On Edit. Using tirerack's tire selection filters they also show a Reinforced RF load rating. But I didnt see on the load rating page a psi pressure rating for that range.

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2003 ZG1000 131,000mi
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Last edited by Slybones; 09-15-2016 at 03:06 AM.
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