Vertex 53010007200 Pistons 17-19 TX 300/08-13 WR 300/22-23 XX 250/99-24 YZ 250 Piston RingVertex 53010007200 Pistons 17 19 TX 300 08 13 WR 300 22 23 XX 250 99 24 YZ 250 Piston Ring Description Vertex Piston Ring Fits Models 300 EXC (04 18,24) 300 EXC Hardenduro (24) 300 EXC Six Days (24) 300 EXC TPI (19 22) 300 MXC (04 10) 300 SX (23 24) 300 XC (06 16,23 24) 300 XC TPI (20 22) 300 XC W (06 18,24) 300 XC W Hardenduro (24) 300 XC W Six Days (14 18) 300 XC W TPI (19 23) 300 XC W TPI ERZBERGRODEO (20 21) 300 XC W TPI Six Days (19 21) EC 300