Dirt Riot – 4400, 4500, 4600

The Ultra4 Class Rules will be used for the 4400, 4500 and 4600 classes as outlined by Ultra4 Racing.

All safety rules must be followed by all classes.

For class specific rules for Stock 4600 and Modified Stock 4500 see sections 6.3 and 6.4

DOWNLOAD ULTRA4 RULE BOOK