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Post by tamarack on Jun 10, 2008 9:18:04 GMT -5
Since the two are always different I'm curious which one gives better performance and/or treadwear. For example the ratings from Yamaha say Front 33 / Rear 36. But Dunlop says 36 / 42. (The stock tires)
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Post by xsyamahadg on Jun 10, 2008 9:39:53 GMT -5
I try to adhere to the tire manufacturer's specs. Mostly if that particular tire is made specifically for my bike, or my type of bike. The bike manufacturer doesn't know which brand of tire will replace the original equipment tires, so they have to publish generalized specifications.
Just my thoughts.
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Post by mgorman on Jun 10, 2008 10:10:12 GMT -5
I use the motorcycle manufactures numbers. They know how much their vehicles weight and the max load of the vehicle. The tire manufacturers just tell you what the max inflation is. If your Goldwing needs a certain size tire to properly fit the rim and requires 40 pounds of air to perform properly, would you put a tire on it that only holds 35 pounds? Don't forget that most manufactures use an average weight for riders. if you are carying a few spare dunlops on your body you should take that into account also. PSI (pounds per square inch) is refering to the pressure the air is putting against the sidewall. If you pump up a tire too hard then you are loosing valuable grip. Too much pressure and the sidewall can't deform under bike and rider weight to get traction. You might as well be on a bicycle tire. The Bubba's in NASCAR don't change tire pressures by 1/2 pound just to be cool. Too low and the tire flexes as rotated. Flexing tires create heat and heat shortens the life span of rubber. Read these Sport RiderFrom Dunlop
To get the maximum safe use out of your tires and maximum touring enjoyment you should: Properly maintain all aspects of your vehicle in accordance with manufacturer's recommendations. Read and reread your motorcycle owner's manual. Never exceed the loading and accessories restrictions found in your motorcycle owner's manual, or the maximum load displayed on the tire sidewalls. Know your loaded vehicle weight! Check air pressure at frequent, regular intervals, particularly just before and during long trips. Always use an accurate tire gauge* and check pressures only when the tires are cold (i.e., wait one hour after running). We have found many cheap gauges to be off more than 5 psi, so be sure to use a top quality gauge and preferably one that retains the pressure reading until reset! Inspect your tires as often as possible. Look for irregular wear, any signs of cracking in the sidewalls and tread, blisters, knots, cuts or punctures. Immediately remove and replace damaged tires.From Uncle Sam NHTSA
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Post by amtrak on Jun 13, 2008 18:17:33 GMT -5
I go by the tire maker,in my case,Dunlap.32 and 36 is where I seem to be happy at. But probably the most important thing to do as mgorman put into his post was the NHTSA link.....which ever way you choose to keep your pressure up.....just check it.
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