NASCAR to use bias ply tyres for Bristol dirt race

In a radical shake-up for the 2021 campaign, Bristol Motor Speedway will stage the first NASCAR Cup dirt race since 1970, as part of a wider overhaul which saw a record seven road course events on the 36-round Cup calendar, including visits to circuits such as Austin, Road America and the Indianapolis road course for the first time.
With NASCAR heading to Bristol this weekend, it marks the …Keep reading