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 July 6, 2021 at 11:20 AM #16691 porsche917Keymaster At this time I would say it is up to the series manager to decide whether or not the Slot It crown gears are allowed. Please post any concerns here so David can review them.
