Bridgestone published the third generation RFT Technology

Bridgestone in a few days ago finally released their third generation RFT technology. RFT Run Flat Tire is a sidewall reinforced tire, the first generation product was born in 1987, because the tire wall thickening and strengthening to tire in the event of lack of gas can still be safe to travel for a range of requirements, so when the vehicle is running, driving feel compared to the general tire would 've. Since 2005, along with the sidewall reinforcing rubber improvement, so that when the driving comfort, created second generation of thickened tire, the first generation of RFT can say is a kind of experimental technology, the second generation of RFT, starts massively to the practical advance, when compared to the famous products include Potenza RE050A and RE070R, but the second generation of products while the sidewalls of a tire stiffness decreased, even with more advanced rubber and tread design, still unavoidably in the comfort and the limit condition of the grip has been missing. The third generation Run Flat Tire newer technology, reduce the radial stiffness, has not lost in the general tire driving comfort. The new technology can also be used for the development of various high aspect ratio tire, but is not limited to the low rate of flat tire on the motion.
Each generation of comfort compared

General tire stiffness to 100 and with the generation of RFT technology is compared. The less the more comfort parameters
High ( 245/40R18 93W tire size. A comparison is made of third generation using a new reinforced rubber and fetal bone.
The third generation of RFT Technology Overview
The third generation RFT design theme is " control the heat ". Sidewall strengthening Run Flat Tire, if you want to strengthen its comfort, is the most effective method of thinning and softening rubber tire wall, when the tires are subjected to impact of sidewalls flexion movements to heat generation. Durability ( air pressure is lost after the durability), maintain and improve driving comfort is improved both at the same time, handle the heat becomes the biggest question. To solve this problem, the Bridgestone Corp using three kinds of new development concept to be realized: one is the development of novel sidewall rubber; two is the use of thermodynamic characteristics while suppressing deformation of the model of fetal bone; three is adopted to help the tire wall cooling Cooling Fin technology. The 3 techniques to improve the driving comfort effect, therefore, will be based on vehicle weight, practical effect, automobile commercial respective situations using the appropriate balance then reality.
( 1) to reduce fever type sidewall reinforcing rubber
" Nano Pro-Tech " technology can make new tyre wall reinforcing rubber carbon molecules to form a more dispersed distribution, when the tire is applied with pressure, carbon molecules between the friction will decrease, fundamentally inhibiting heat generation. Using this technology, the third generation RFT and the second generation, heat will be reduced to half its original.

New tyre wall reinforcement in rubber suppression of fever.
NanoPro-Tech technology summary

Two left inside the box is the old rubber polymer carbon molecular friction generates heat energy loss, appear on the right is used;
NanoPro technology polymer third generation RFT technology under carbon molecular dispersion, reduce carbon molecules between friction, reduce energy loss.