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"Tire Upgrade" means increasing of rim diameterwithout changing of tire overalI diameter and the trend in development of low aspect ratio.Upgrade increase of sporty performance and enhance of breaking ability.

How to upgrade your tire

Without any particular reason, please do not change the overaIl diameter of the tire easily. The alteration of tire overall diameter will cause misreading of speedometer or mutual interference between tire and other parts of vehicle.

PIease determine the width of tire in accordance with the specific width of vehicle. If the width of the entire tire is increased overIy, it wiII cause mutual interference between tire and other parts of vehicle, even heading out of the tire from bodywork which will initiate danger.

Notice the Ioad index of vehicle when you upgrade the tire. There is rule to the weight which the tire can bear (Ioad index) for each size.

70 series→65‧60‧55‧50‧45‧40 series

70 series→65‧60‧55‧50‧45‧40 series 65series→60‧55‧50‧45‧40‧35series 60series→55‧50‧45‧40‧35series 55series→50‧45‧40‧35series 50series→45‧40‧35series 45series→40‧35series 40series→35series

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