Cylinder Works 20004-K02HC 15-23 Yamaha YFM 700 R Raptor 700cc Standard Bore High Comp Cylinder Kit 11.1:1 CompCylinder Works 20004 K02HC 15 23 Yamaha YFM 700 R Raptor 700cc Standard Bore High Comp Cylinder Kit 11. 1: 1 Comp Description Cylinder Works Standard Bore High Compression Cylinder Kit Fits Models YFM 700 R Raptor (15 23) YFM 700 R Raptor SE (15 23) Specs Uses Vertex #23966 Compression Ratio11. 1: 1 Cylinder Diameter102 mm Cylinder Kit Type: Standard Bore High Compression Displacement: 686 cc Engine Type: 4 Cycle Includes: Cylinder, Piston Kit, and