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Bridgestone Ecopia EP422

The Ecopia EP422 is one of Bridgestone's ecologically oriented Grand Touring All-Season tires initially developed in sizes for drivers looking to combine year-round traction, handling and comfort with reduced environmental impact for their hybrid coupes and sedans, as well as other small cars. Ecopia EP422 tires are designed to enhance vehicle fuel economy by reducing tire rolling resistance along with the vehicle's carbon dioxide (CO2) emissions during operation while delivering year-round, all-season traction, even in light snow.

The Ecopia EP422 uses an all-season tread compound featuring Bridgestone's unique NanoPro-Tech (Nanostructure-Oriented Properties Control Technology) to reduce rolling resistance and energy loss while maintaining dry, wet and wintertime traction.

This compound is molded into a symmetric tread design that combines notched shoulders and intermediate ribs with independent center blocks for dry road tracking and traction. Four circumferential grooves are designed to help water flow from under the footprint to resist hydroplaning and enhance wet traction while notches and sipes increase the edges that bite into light snow. The tire sidewalls feature Bridgestone's Fuel Saver compound to further increase efficiency.

The tire's internal structure includes twin steel belts reinforced by spirally wrapped nylon on top of a polyester carcass to blend ride comfort and durability.


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