Reply To: 2017 BTCC Series rules discussion Home › Forums › Club Races › Racing Calendar, Classes & Regulations › 2017 BTCC Series rules discussion › Reply To: 2017 BTCC Series rules discussion March 24, 2017 at 9:54 AM #10568 Race ControlKeymaster Are we changing back to a 15.8mm wheel? The rules need to get updated so we can get parts in.
