2017 Can-Am Outlander MAX DPS 450, Power, reliability and comfort of Tri-Mode Dynamic Power Steering (DPS) with room for two. Torsional Trailing arm Independent (TTI) rear suspension Double A-arm front suspension Tri-Mode Dynamic Power Steering (DPS) 12-in. (30.5 cm) cast-aluminum wheels with 25-in. (63.5 cm) tires