Tyre theory patented
Page 18
If you've noticed an error in this article please click here to report it so we can fix it.
BRIDGESTONE has filed for 11 patents on its Rolling Contour Optimization Theory (RCOT) in Japan, USA and Europe.
When implemented it is expected to obtain higher levels of performance in almost every aspect of use. The concept was achieved by the redesign of the tyre contour.
Shaped similarly to that of a rolling tyre, the carcass tension is redistributed so that tension is increased in the bead and belt area but reduced in the side walls.
This controlled distribution is claimed to produce firmer road surface contact and improve speed performance. At the same time it minimises unwanted tyre movement to improve fuel economy. Changes may be made to tyre construction or materials to obtain specific performance characteristics, without jeopardising other areas of performance, says the manufacturers.
In tests against conventional tyres, Bridgestone says the RCOT tyre shows a three to five per cent improvement in stability, five to seven per cent reduction in rolling resistance, one per cent improvement in fuel efficiency, and two per cent increase in cornering force. Further test results are said to show a reduction in road noise with improved absorbtion of road shock.