I just read the new rule book and 4 big rule changes i noticed:
1. all primaries must now be fully enclosed. (This one seems like it needs to be clarified as dry clutch and belt primaries need to be partially open or the clutch will burn up. I have written tech for clarification)
2. External air filters must now be safety wired
3. Lean Angle- All two-wheeled vehicles, when unloaded, shall be capable of being inclined to an angle of 20 degrees from the vertical without any part, other than the tires, being in contact with the ground.
4. Ground Clearance-All parts of the motorcycle, other than the tires, shall maintain a 1-inch minimum clearance from the ground. Measurements taken with
rider seated in racing position and motorcycle not on stands.