This year the full 24-car field will run on a standardised Supashock branded by suspension specialists Pedders.
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The move to a standard-issue shock comes in the wake of the championship trying to save team spending. Each shock is expected to cost less than $2,000.
A side effect of the move to the standard part should be a more level playing field between the teams.
Damper packages have long been an area of free reign for development. Until 2020, teams had free choice on shocks suppliers as well as research and development cost.
The new package will be sealed and only able to be serviced by suppliers Supashock.
Penrite Racing and Walkinshaw Andretti United have used Supashock dampers as recently as 2019. However, the shocks set to be used in 2020 will be a different specification.
Teams will use them for the first time at the BP Ultimate SuperTest at The Bend on February 18.