Reply To: 2021–NSR Formula 86/89 Home › Forums › Club Races › Racing Calendar, Classes & Regulations › 2021–NSR Formula 86/89 › Reply To: 2021–NSR Formula 86/89 December 11, 2020 at 11:51 AM #15803 porsche917Keymaster The stock tires have plenty of clearance even after truing. NSR’s SuperGrip tires have always worked well on our track and in some quick testing of my car I don’t see any reason to spec anything other than the stock tires.
