Cylinder Works 60004-K01HC 2016 Polaris ACE 900 EPS 900cc Standard Bore High Comp Cylinder Kit 11.5:1 CompCylinder Works 60004 K01HC 2016 Polaris ACE 900 EPS 900cc Standard Bore High Comp Cylinder Kit 11. 5: 1 Comp Description Cylinder Works Standard Bore High Compression Cylinder Kit Fits Models ACE 900 EPS (16) Ranger 900 4x4 Crew (14 16) Ranger 900 XP (13 16) RZR 4 900 (15 16) RZR 900 50 Inch (15 16) RZR 900 55 Inch (15 16) RZR 900 60 Inch (15 16) RZR 900 50 Inch (15 16) Specs Uses Vertex #24028 Compression Ratio11. 5: 1 Cylinder Diameter93 mm Cylinder