Jims Manual Compression Release Valve YCRF_e-bikes D ZVM-X Series utilizes our

D ZVM-X Series utilizes our patented X-Ring seal and has greater strength than the VX Series and is designed for heavyweight motorcycles with tremendous torque and horsepower

Available in standard

Removable foam knee pads

Automatic Standby Mode

The reed cage design now incorporates an airfoil shape at the reed tip area to increase air velocity from the outer ports

Jims Manual Compression Release Valve YCRF_e-bikes D ZVM-X Series utilizes ourFEATURES Give your starter a hand by installing these in your high compression, big inch motor Simple drill and tap (10mm x 1mm) each cylinder head and thread in the self sealing release valves (thread tap sold seperately) Sold in pairs Made in the USA