RK Chain Technical Information :: MotorcycleGear.com
X´RING Black motorcycle chain - Iris Chains Moto
Modern O-Ring and X-Ring chains DO NOT NEED LUBRICATED! ONLY CLEANED! I am prepared to die on this hill, but please, hear me out first :) : r/motorcycles
O-Ring vs.X-Ring and Patching Tires | Cycle World
O ring vs X ring chains - YouTube
X-Ring Roller Chain | maintenance-free chain - USA roller chain