MONTE CARLO (Oct. 14, 2016) — New Formula 1 technical regulations for 2017 calling for higher aerodynamic downforce means Pirelli Tyre S.p.A. has had to design and build wider tires, although the rim diameter will stay at 13 inches.
The new spec tires are nearly 25-percent wider — with the new fronts at 305/670-13, up from 245mm, and the rears 405/670-13, up from 325mm — and weigh up to two to three pounds more, respectively, than the 2016-spec tires, according to Pirelli. The tire maker also will have to re-engineer the tires' structure to handle the increased downforce loading.
Pirelli did not say how much it expects the development of the new dimensions will cost.
Testing has started with a few teams modifying their 2016 cars with the higher downforce wings in an attempt to simulate the 2017 conditions. So far Scuderia Ferrari and Mercedes AMG Petronas have completed tests with the new tires for Pirelli.