Pro Classes : 

These classes are heads up on a Pro Tree. Wheelie Bars are Allowed in ALL Classes

Inline Chassis : 

Top Fuel : Dragster body, minimum length of 5 inches from nose to rear tires. Minimum weight of 27 grams. Any arm, can't exceed .240 ohms. Any magnet allowed. No Braids, all other mods OK.

Funny Car : Funny Car body, minimum length of 3 inches. Minimum weight of 27 grams. Any arm, can't exceed .380 ohms. Any magnet allowed. No Braids, all other mods OK.

Pro Mod : Any year Pro Mod Style car or pick up truck body. Minimum weight 26 grams. Any arm, can't exceed .600 ohms. Any magnet allowed. No braids, all other mods OK.

Pro Street : Any year car or pick up truck body. Minimum weight 23 grams. Any arm, can't exceed 2.6 ohms. Any magnet allowed. No braids. All other mods OK.

Pro Stock : 2000 model year or newer door slammer body. Minimum weight 23 grams. Stock or Hot Stock arm, can't exceed 5.8 ohms. Any magnet allowed. No braids, all other mods OK.

Heavy Street : Any year Metal Die Cast car or pick up truck body. Minimum weight 57 grams. Any Stock or Hot Stock arm, can't exceed 5.8 ohms. Any magnet allowed. Braided shoes OK. All other mods OK.

Pure Street : Any year car or pick up truck body. Must be a resin or molded plastic body. Minimum weight 21 grams. Stock arm only, can't exceed 5.8 ohms. Slip on silicone tires OK. Front tires must touch track. All other mods PROHIBITED.

Thunder Jet / AFX Chassis :

Super Street : For any T-jet, AFX, Johnny Lighting or Auto World chassis. Any year car or pick up truck body can be any material. Minimum weight 22 grams. Add on traction magnets OK, Max of 2 permitted. Only 1 add on magnet can be added to the AW Ultra G Thunder Jet & Xtraction chassis. Any Pancake arm allowed, can't exceed 2.0 ohms. Ceramic or Polymer motor magnets allowed. NEO magnets PROHIBITED. Spring Motors PROHIBITED. Motor must use brushes. After market replacements OK. All other mods OK. 

Modified Street : For any T-jet, Johnny lighting or Auto world Thunder Jet chassis. Any year car or pick up body. Body must be molded or resin cast & mount using screw posts. Screw posts do not have to be molded to the body they can be glued in. Minimum weight 21 grams. 1 add on traction magnet allowed. Add on Magnet PROHIBITED on AW Ultra G chassis. Any Ceramic motor magnet OK. Polymer & NEO  motor magnets PROHIBITED. Legal arms may be balanced and trued. May not exceed 5.7 ohms. List of Legal arms are as follows, no exceptions. Blue Dragster-Blue Tips with Green or Copper wire, Mean Green-Green Tips with Green or copper wire, Tuff Ones-Red Tips with Green Wire, Wild ones-Gray Tips with Green Wire. There are reference pics at the bottom of this page. Any copper carbon brushes OK. Braids and shunts prohibited. Any tires OK. All other mods PROHIBITED.

Stock Street : For Stock AFX Magnatraction, Non-magnatraction and Auto World X-Traction. Any year car or pick up body. Must be a resin or molded plastic body that mounts to the stock chassis tabs. Minimum weight 21 grams. AW X-Traction Ultra G PROHIBITED. Stock magnets only. Motor Magnets allowed in AFX Non-magnatraction. North - Light Blue, White or Green. South - Orange or Green. X-Traction and Magnatraction arms and magnets may be interchanged between chassis.  Armature may not exceed 14.5 ohms. Non-magnatraction may use either of the previous arms or the Mean Green armature. May not exceed 5.7 ohms. Balancing of arm OK. Truing is PROHIBITED. Any slip on tire OK. Any copper carbon brushes OK. ny height front tire OK but they must touch the racing surface. All other mods PROHIBITED.

Nostalgia Street : For original copper bottom Thunder Jets only. Any year car or pick up body Ok. Any resin cast or molded plastic boby OK. Screw posts do not have to be molded to body, can be glued in. Must mount using original mounting screw holes in chassis. Minimum weight 20 grams. Factory arm may be balanced. Truing is PROHIBITED. May not exceed 15.5 ohms. Any copper carbon brushes OK. Stock ceramic magnets only. Legal magnets : North - Green or Black, South - Orange, White, Black or Black with white stripe. Double flange wheels made of aluminum, brass or plastic OK. Must maintain stock .188 inch diameter. Slip on silicone tires OK. Max width .125 inch. Max diameter .400 inch. Front tires must touch racing surface. All Other mods PROHIBITED.