074808 Dynaxer HP4 Kleber Summer Passenger tyre XL DT1 labels: fuel efficiency class - D; wet grip class - C; rolling noise and resistance measuring class - 69 dB (B) snow grip - No; ice grip -. 074808 Dynaxer HP4 Kleber Summer Passenger tyre XL DT1 labels: fuel efficiency class - D; wet grip class - C; rolling noise and resistance measuring class - 69 dB (B) snow grip - No; ice grip -