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. 

Pro Comp Stock – 4600 - 8.3

Rubicon Expess Modified – 4500 - 8.4

G2 Wheels Legends – 4800 - 8.4.11

UTV Class - 4900- 8.6

4900 - UTV Drivers: Classes have been simplified to one class.  Please consult the ULTRA4 Rulebook section 8.6 for KOH UTV rules for KOH UTV Race.

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

2018 ULTRA4 Europe Schedule
New Web Site Coming Soon!

New Web Site With Registration Information Coming Soon! 

16th-20th May - King of France 2018

20th-24th June - King of Britain 2018

4th - 10th Sept. - King of Portugal 2018

10th - 14th Oct. -  King of Germany 2018