Sprockets, wheels, disks for transmission chains Sprockets, wheels, disks Transmission Pre-bored hub Steel/stainless steel gears Steel disks Pre-bored gears with treated teeth Ready-to-mount gears Double disks for 2 simple chains Cast iron platewheels Removable hub Taper lock doublex simplex platewheels Steel taper lock sprockets Cast iron wheels Taper lock Special sprockets Special sprockets