BRIDGESTONE summer tyres 315/40 R21

RG Homologation (OE) Manufacturer homologation — tire specifically approved by the vehicle manufacturer. Read more → B Fuel efficiency (A–E) Rolling resistance class A (best) to E. Difference between classes — up to 9% in fuel consumption. A Wet grip (A–E) Wet braking distance. Class A — shortest, E — longest. The difference can reach 30%. B|72dB Noise level (dB) External rolling noise in decibels. Lower number means quieter tire. EV Ready Optimized for EVs: higher load, lower rolling resistance, quieter cabin.

XL XL (Extra Load) XL (Extra Load) — reinforced for ~11% higher load than standard. Read more → NC0 Homologation (OE) Manufacturer homologation — tire specifically approved by the vehicle manufacturer. Read more → RG Homologation (OE) Manufacturer homologation — tire specifically approved by the vehicle manufacturer. Read more → B Fuel efficiency (A–E) Rolling resistance class A (best) to E. Difference between classes — up to 9% in fuel consumption. B Wet grip (A–E) Wet braking distance. Class A — shortest, E — longest. The difference can reach 30%. B|71dB Noise level (dB) External rolling noise in decibels. Lower number means quieter tire. M+S M+S (Mud & Snow) M+S (Mud & Snow) — for light snow and mud. Not certified; weaker than 3PMSF. Read more →