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Search TiresQ/A ArchivesNovember 2006
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Archive for November, 2006
11R22.5 Tire Weight I have a bus and it shows the vehicle weight based on 12R22.5 tires at 110 psi. I assume the weight rating includes the weight of the tires. What would the tire weight of the 12R22.5 at 110 psi be? (so I can figure out the weight of the bus itself) Whoever had this bus before me was skimpy on weight considerations and slapped 11R22.5 tires on it so I am trying to figure out how much weight I can add to the bus without worrying about reaching the max load. The 11R22.5’s also read 105 psi single and 95 psi dual with certain weight ratings, yet the bus displays that the 12R22.5’s should all be at 110 psi (single and dual) I assume I should go by the tire specifications. If you want specific tire weights, you will need to find the info for the specific tires on your bus. In our case, we publish all the weights, load carrying capacity, etc. in our Engineering Data book that can be found here http://www.goodyear.com/truck/tireinfo/publications.html
Goodyear tire manufacturing date I purchased a 1970 Corvette with Goodyear Wingfoot 255 r60 15 tires on it. I can not find a date code on them and I am trying to determin how old the tires are. They are in great shape but I am concerned that they are too old it be trusted. The following quote is from the National Highway Transportation Safety Association and it details the U.S. DOT Tire Identification Number and what the letters and numbers mean.
Difference Between RV Tires and Trailer Tires Is it safe to put trailer tires on a motorhome? The tires on it now are LT750X16 load range D the ones I have to replace with are LT750X16 load range E and marked “for trailer use only”. I want to use on rear duals if safe. This motor home will not be used much over 1500 miles a year? If the tires are marked "For Trailer Use Only", that means for trailer use only. I would not use them for any other purpose.
Automatic Tire Inflation Systems I know how important it is to maintain the proper air pressure in my tires. I see more and more automatic tire inflation systems on the highway in major fleets mostly on trailers. Do you have any experience with such systems and do you recommend them for keeping the correct air pressure in my trailer tires? Any device that keeps the proper inflation pressures in tires is a great thing for the tires and for fuel economy.
Tire Size vs Fuel Economy I have read on these Q&A’s that a smaller tire would mean better fuel economy because it is less weight. When it comes to highway travel, wouldn’t a bigger tire, which means more circumference, mean faster speeds with the same amount of power provided by the engine minus the extra wind friction and rolling resistance? On the other side of things, acceleration at low speeds would be slower since the ratio from power to the tires are larger. Anything question regarding any particualar vehicle component and its affect on fuel economy must begin with the words "all other things being equal". A "smaller" tire should be lighter and have less diameter so, if the gearing were adjusted to compensate for the RPM difference, the vehicle should get better fuel economy. Conversely, if you put a "bigger" tire on (more weight, larger diameter) and did not change the gearing, the engine would turn fewer RPMs at the same speed and the net result in fuel economy may or may not be affected. |
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