DID PBR Chain Kit 520VX3 16 42 Standard Standard Rear Sprocket 36Tech™ bar mounts are designed 36Tech™ bar mounts are designed to be used in conjunction with Fettbar®36 handlebars to create the ultimate rider control TorqDrive friction disks provide longer clutch life with less adjustment over time Pin Length: 0 Chain 520VX3: The VX Series chain is a great chain upgrade from OEM and is our most popular and widely used chain on both on and off road bikes