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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 Europe Rule Book. – Updated 5/2017 – updates are highlighted in RED. Table of Contents is Clickable. 

4600 - 8.3

4500 - 8.4

4800 - 8.4.11

4900- 8.6

4900 - UTV Drivers: Classes have been simplified to one class.  Please consult the ULTRA4 Rulebook section 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]