After careful consideration, Polaris has made the decision to discontinue production of full-size and Youth ACE single-seat ATVs. Prior to the RZR RS1, Polaris had the single seater ACE lineup which at the time was leading the charge with single seaters. The RZR RS1 is a significant improvement over the ACE. Not too surprisingly, the ACE line was discontinued in 2019. No doubt Polaris felt they hit pay dirt with the RS1 and buyers agreed.