The Y870B is Yokohama's Temporary/Compact Spare tire developed for Original Equipment applications that allow vehicle manufacturers to increase available trunk space and reduce overall vehicle weight compared to using full-size spare tires and wheels. Y870B tires can help drivers temporarily regain mobility in the event of a flat tire due to a puncture, cut, road hazard, accident or blowout.
Like all Temporary/Compact Spare tires, the Y870B tire is designed for temporary use only. It features a smaller physical size, narrower tread, shallower tread depth and lighter-weight construction than the tires with which the vehicle is normally equipped.
The smaller physical size requires Y870B tires be maintained with 60 psi cold tire inflation pressures and driving speeds restricted to 50 mph.
Temporary/Compact Spare tires do not include a wheel.
Check your vehicle's owner's manual for recommendations and restrictions.
Related Information: Spare Tire Use
Tire Category: Temporary/Compact Spare
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