Col5 Posted December 13, 2018 Report Share Posted December 13, 2018 Hi My son is 16 years old ,17 next August, 5'10" He wants to start doing trials events. What size engine is he allowed? Quote Link to comment Share on other sites More sharing options...
cleanorbust Posted December 13, 2018 Report Share Posted December 13, 2018 According to the ACU standing regulations, as a 16 year old now he can elect to ride either as a Youth A class rider or as an adult on an event by event basis until the end of 2019. As an adult he would have no engine size restriction, as a Youth A class rider he would be restricted to 125cc monoshock or 250cc twinshock machines. Of course, this applies to events operating under ACU jurisdiction only. Quote Link to comment Share on other sites More sharing options...
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