Application
Radial tires have different characteristics of springiness from those of bias-ply tires, and a different degree of slip while steering. Motorists were not accustomed to the feel, hence the suspension systems of cars had to be modified. Ford Motor Company engineer Jack Bajer experimented in the 1960s on a Ford Falcon, by giving it less tight steering, and adding both isolators to the drive shaft and bushings to the suspension, the latter being to absorb the thump of riding over asphalt expansion joints in a concrete roadway. Cars could now be made lighter because they would not have to make up for the deficiencies of bias-ply tires.
Radial tires have occasionally found application on bicycles, used on the 1980s Miyata touring bicycle; models 1000 and 618, and more recently in 2009 on the Maxxis Radiale. Panaracer radial tires were also standard on the Jamis Gentry model bicycle in 1985.
Interestingly, the steel wires in radial tires become magnetic with use, and as they rotate a significant alternating magnetic field is created. It is quite measurable with an EMF meter close to the wheel well when the car is moving and is a spectrum of harmonic strengths from 10 to several hundred Hertz.
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