Strike Cycles Replacement CHAIN #420H for SHADOW Electric BikesThis is the Strike Cycles Replacement CHAIN #420H for the Shadow 48V Electric Bike, Shadow SX 60V Hydraulic Suspension Electric Bike and Shadow SV2 72V Electric Bike. The Shadow 420H Heavy Duty Chain is built to handle the increased torque and load demands of electric mini moto and e moto platforms. Featuring reinforced side plates and heat treated steel construction, this chain offers greater strength and durability than standard 420 chains, reducing