Most energy-efficient 255/40 ZR21 (2026)

By energy class: C 4 · D 1

1. 1C
   Kumho Ps71 2310153

   wet grip A · 73 dB
2. 2C
   Kumho 2407193

   wet grip A · 73 dB
3. 3C
   Accelera IOTA - ST68 (1M2138)

   wet grip C · 68 dB
4. 4C
   Accelera IOTA - ST68 (1M2152)

   wet grip C · 68 dB
5. 5D
   Marshal Mu12 2288093

   wet grip C · 72 dB

Ranked by annual energy consumption; running cost at the EU average household price. Open a model to see the cost in your country. Methodology