Sport Modified Rules
2020 Sport Modified (Sport Mod) Monster Truck Rules & Class Information
This class is in the spirit of the first generation of Stage 3 monster trucks that participated in the Penda Series era in the 90’s. This is intended to be a more budget friendly version of the modified class, wherein the trucks are also easier to control due to lower speeds. This is a race only class, vehicles will not participate in freestyle.
These rules were decided and voted on by the competition committee and are good for the 2019 Calendar Year.
General/Axles: All vehicles must have a minimum of 2 solid axles. Motor on Axle (Clod Buster) gearboxes are legal. Shaft driven trucks are legal.
Tires: Any Clod or USA-1 sized tire is legal, and cutting is allowed. Any traction compound and/or any cleaning chemicals are not allowed to be used on tires at any time.
Wheels: Any scale appearing Clod Buster sized monster truck wheel is legal.
Chassis: Any scale appearing chassis is legal (tube or plates). Season points are tallied with a given chassis. If chassis is changed during season, points will not transfer.
Wheelbase: No limit.
Width: No limit.
Motors: 17 turn brushed motors are the maximum allowed (NO brushless and NO hand-wound motors), with a two motor maximum.
Battery: Limited to one 7.4V 2S lipo with 100C advertised discharge limit (7.6V are not allowed). “Cycling” of batteries is prohibited!
Steering: May be 2 or 4WS
Shocks: No maximum number or length. May be oil filled.
Suspension: 4 link allowed with any type of configuration.
Body: Any body legal. Allowed 1 body/name change per season. However, a designated concrete/black top body can be run to avoid damaging particular ones, in which case this will not count towards the season name change limit.