Bodies: Any 2WD buggy body intended for the class.ESC (Electronic Speed Control): ROAR Approved Non-Timing ESC’s, “Blinky” only.Motor: ROAR Approved stock 17.5 spec brushless motor.Chassis: Any 1/10th off-road 2-wheel drive buggy style chassis.The Stock Buggy division is for intermediate and advanced racers who wish to run 2wd buggies with stock/spec motors, and is often the largest divisions at the track. Batteries: 2-cell hard case Li-Poly batteries for 4wd SCT, 3-cell and 4-cell batteries for eBuggy and eTruggy.Chassis: Any nitro or electric 1/8th off-road vehicle or 4wd Short Course Trucks are allowed.Batteries: 6-cell NiMH batteries, or 2-cell hard case Li-Poly batteries.Motor: 27T brushed motors, or 17.5T to 21.5T brushless motors or the original RTR power system for your specific vehicle.We strongly discourage the use of 4wd vehicles in this division. Chassis: Any 2wd 1/10th electric off-road competition vehicle or 1/10th RTR vehicle with RTR electronics.The rules for this division are: 1/10th (INDOOR): The Rookie class is for entry-level drivers that are new to RC racing.