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Rulebook

ULTRA4 Rule Book       Description of Points

Building your own ULTRA4, Stock Modified, Stock,  Legends, or UTV?
Find out all the rules before you start your build. All safety rules must be followed by all classes. 
Download the ULTRA4 Rule Book. – Updated 11/28/2016 – updates are highlighted in RED. Table of Contents is Clickable. 

Pro Comp Stock – 4600 - 8.3
Rubicon Expess Modified – 4500 - 8.4
G2 Wheels Legends – 4800 - 8.4.11
UTV Class - 4900- 8.6

Ultra4 Chassis & Tech Sheet can be viewed here.

Should you have specific technical questions, you must cite the section of the rule book to which your question pertains and email our tech inspector at [email protected]