1) Motor Max 20,000 RPM Scalextric Yellow can only.
2) Gearing/ Ratio – Standard 9/27 (Can be upgraded to Slot-it type Gears)
3) Magnet- Standard at back & Button magnet at front
4) Tires- Free
5) Axle & Wheels- Free (Must maintain same standard wheel dimension)
6) Braids- Free
7) Interior- Standard
8) 1 mm Rule in Effect
No Weight Reduction. Car chassis and body must be an exact match as factory manufactured.
Any Modification not specifically listed is prohibited