Ryde FX Pro Front Shocks: The 550 IQ Shift features RydeFX Pro HPG IFS front shocks, with a one-piece extruded aluminum cylinder combining solid strength with lightweight performance. IQ Front Suspension: At the heart of the legendary Polaris ride and handling is the IQ IFS. It delivers unmatched stability, agility and rider confidence. Sculpted Seat and Tank: A lightweight freestyle seat allows for aggressive cornering and easy stand-up riding. IQ Rear Suspension: The IQ fully coupled rear suspension features a RydeFX IFP gas shock up front and a Fox PS5 rear-track gas shock creating 13.9 in. (353.1 mm) of travel. 550 Fan Engine: A fan-cooled 550 powers the 550 IQ Shift™ and features Nicasil-lined cylinders to maximize performance, durability and reliability.