2017 Sea Doo RXT-X 300, ROTAX 1630 ACE ENGINE: Supercharged with an external intercooler, the Advanced Combustion Efficiency (ACE) technology delivers high efficiency and amazing acceleration. This is the most powerful engine on a Sea-Doo, ever.ERGOLOCK SYSTEM: Become one with the machine by locking in your body for better handling and more control, thanks to a narrow racing seat, specially angled footwell wedges and adjustable ergonomic steering (A.E.S.).ADJUSTABLE REAR SPONSONS: An efficient design that improves cornering stability. 3-position adjustable for your skill level and riding environment: higher for a more playful freeride experience or lower for sharper turn. Winglet feature enhances lean angles during turning.X-GAUGE WITH BOOST INDICATOR: With a quick glance at the X-Gauge, you can view your speedometer, check your lap time, and get a read on your engine’s maximum performance from the handy Boost Indicator.HIGH-PERFORMANCE VARIABLE TRIM SYSTEM (VTS): Quickly access the Variable Trim System (VTS) on the handlebar for fine-tuned handling based on rider preference, water conditions, and number of passengers.INTELLIGENT BRAKE AND REVERSE (iBR): Exclusive to Sea-Doo, the second generation iBR system lets you stop close to 160 feet sooner (48.75 m)*. And offers more control and maneuverability. *Based on BRP internal testingINTELLIGENT THROTTLE CONTROL (iTC): Choose how you want your power delivered thanks to different riding modes such as Touring, Sport and ECO - available through your watercraft digital information center.CLOSED-LOOP COOLING SYSTEM: This technology prevents corrosive saltwater and damaging debris from entering the engine, for increased reliability and peace of mind.ANTI-THEFT SECURITY SYSTEM AND iCONTROL LEARNING KEY: Design features a Digitally Encoded Security System unique to your watercraft that serves as an effective theft deterrent. Learning Key also limits speed for beginners.