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View Full Version : 90 CC limits



woodsracer144
04-12-2009, 08:57 PM
what is the most you can run a trx90 in a race. its a hairscramble and i've heard about people use ATV motor...

kartracer8j
04-13-2009, 03:54 PM
Most harescramble classes are 125cc 4 stroke - gncc has a super mini class that goes to 150cc 4 stroke ( have to be 13 or older ). if your looking to run a different motor be carefull because most tracks dont let you weld on the frame ( unless for safety ) . ...hope that helps !

woodsracer144
04-13-2009, 07:23 PM
Would a atc 110 work in the 90 chassis I thought they were all the sam emounting