1. ultrasoft - Noun
2. ultrasoft - Adjective
Extremely soft; of utmost softness.
(motor racing) Softer than supersoft, and harder than hypersoft.
ultrasoft (plural ultrasofts)
(motor racing) Ellipsis of ultrasoft tyre.
Austin, October 21, 2017 – After topping all three practice sessions and breaking the track record yesterday, Mercedes driver Lewis Hamilton lowered the benchmark again today by taking pole on the ultrasoft. Source: Internet
Pirelli is coming to Sochi with the softest possible tyre selection in the P Zero F1 range: soft, supersoft and ultrasoft – with the latter making its debut on Russian soil. Source: Internet
Max Verstappen won the Mexican Grand Prix with a one-stop strategy as expected, making his sole pit stop from ultrasoft to supersoft on lap 32. Source: Internet
Mercedes and Ferrari were the only teams to get through Q1 using the supersoft tyre only, with ultrasoft then used by all drivers for the rest of qualifying – with just one exception. Source: Internet