2016 Sea-Doo RXT? -X? 300 LOCK IN AND EXPERIENCE MORE POWER AND CONTROL Built for large bodies of water rougher conditions now with the Rotax 1630 ACE engine and Ergolock system. Your legs ? lock in? to the machine for added control. Experience performance riding with more confidence and push your limits further. Watercraft 3 Person DX13461785482922495674 DX1