2017 Sea-Doo RXT? -X? 300 RXT? -X? 300 - RACE-INSPIRED ACCELERATION AND STABILITY FOR THE WIN Built for large bodies of water rougher conditions with the 300 horsepower Rotax 630 ACE engine and Ergolock system. Your legs ? lock in? to the machine for added control. Experience performance riding and go from 0-60 miles per hour (0-96.6 kilometers per hour) in 3.8 seconds. Watercraft 3 Person DX0610336149488716855084679 DX1