PNEUMATIC TIRE
DRIVE
June 18, 2025
The pneumatic tire comprises a carcass 6, and a pair of bead portions 4 each with a bead core 5 and a bead apex 8. The carcass 6 comprises a carcass ply 6A having a pair of turned-up portions 6b and a main portion 6a therebetween. At least one of the bead portions 4 is provided with a bead reinforcing rubber 10 disposed on the axially outside of the turned-up portion 6b. The bead reinforcing rubber 10 comprises an axially outer first reinforcing rubber layer 11 and an axially inner second reinforcing rubber layer 12. The complex elastic modulus E*2 of the second reinforcing rubber layer 12 is smaller than the complex elastic modulus E*1 of the first reinforcing rubber layer 11.
Discussion in the ATmosphere