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Low rolling resistance tires are designed to reduce the energy loss as a tire rolls, decreasing the required rolling effort — and in the case of automotive applications, improving vehicle fuel efficiency as approximately 5–15% of the fuel consumed by a typical gas car may be used to overcome rolling resistance.
Rolling friction, also called friction in rolling motion or rolling drag, is the force resisting the motion when a body (such as a ball, tire, or wheel) rolls on a surface. . In pure rolling motion, there is only one point of contact between the rolling object and the surface at any instant, and this point remains momentarily at rest relative to the surfa
SAE J1269 is a standard test defined by the Society of Automotive Engineers [1] to measure the rolling resistance of tires under conditions of thermal equilibrium. [2] [3] SAE J2452 is an alternative procedure for measuring rolling resistance under conditions similar to a vehicle coastdown event, where the tire is in a roughly isothermal condition (but not thermal equilibrium).
In a non-scientific study (I looked at tires available from a national chain that fit my car), 85 percent of LRR tires had an “A” rating for traction, compared to 87 percent of Non-LRR tires.
Along with the addition of rear tire spoilers is an optional 17" chrome-clad wheel equipped with a new Michelin "Low-Rolling-Resistance-Tire", slightly increasing ground clearance and improving traction over the standard 16" wheels and tires. Another new feature is Ford's Easy-Fuel capless fuel filling system.
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A balloon tire is a type of wide, large-volume, low-pressure tire that first appeared on cruiser bicycles in the US in the 1930s. They are typically 2 to 2.5 inches (51 to 64 mm) wide. In the 1960s Raleigh made its small-wheeled RSW 16 with balloon tires [68] so it would have a soft ride like the fully suspended Moulton Bicycle. Other ...
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