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[1] [2] [3] The term comes from the tendency of a car's wheels to follow the normally recessed rails of street trams, without driver input in the same way that the train does. [3] The same effect is sometimes called nibbling. Tramlining can usually be blamed on tires, and its incidence depends greatly on the type of the tire [3] and its state ...
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.
According to the standards of the Tire and Rim Association, these recommended pressures caused the front tires to be overloaded whenever there were two or more passengers in the car. An unadvertised at-cost option (#696) included upgraded springs and dampers, front anti-roll bars and rear-axle-rebound straps to prevent tuck-under.
Tires in warmer climates also showed higher levels of cure and had somewhat lower peel strength. [37] The role of air temperature would explain why geographic regions with higher air temperatures had the highest tire failure rates. These results held up even for tires that had zero percent tread wear. [37]
In many high-performance cars, tires with equal conicity are mounted on left and right sides of the car in order that their conicity effects will cancel each other and generate a smoother ride performance, with little steering effect. This necessitates the tire maker measuring conicity and sorting tires into groups of like-values.
The SAE Class "S" well clearance is a common requirement on newer cars, especially if after-market wider, low-profile, or larger tires and/or wheels are fitted. The classes are defined as follows: [8] SAE Class S: Regular (non-reinforced) passenger tire traction devices for vehicles with restricted wheel well clearance.
This design avoids having the plies rub against each other as the tire flexes, reducing the tire's rolling friction. This allows vehicles with radial tires to achieve better fuel economy than with bias-ply tires. It also accounts for the slightly "low on air" (bulging) look that radial tire sidewalls have, especially when compared to bias-ply ...
Key elements of the stance style are: lowered suspension (lowering springs, coilovers or air suspension), stretched tires and negative camber. Oftentimes, the main purpose of a stanced car project is to achieve an improved visual appeal rather than improved performance characteristics or handling, however some cars combine both.
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