Nitro only

1/8 Scale 4-Wheel Drive Buggies only

Engines - any .21 except ready to run vehicles may run the engine that came with them

125 cc Fuel Tank only (Losi 8 must run insert)

Popular Tires - Proline Bowtie, Crimefighter, Holeshot or Inside Job \ Panther Komodo Dragon II, Gator or Switch 2.0

Examples:  Mugen MBX-5R, Xray XB8, Losi 8, Jammin' X1-CR, Ofna Hyper Series, Sportwerks Mayhem & Turmoil, Kyosho 777 WC, etc.