Little Big Guy
can someone explain to me what the rubber o-rings do on a chain? and what would happen if they wasnt there? just trying to get to know more about my bike. can anyone help? thanks,
+1 on what Strand said and also the o-ring is used to keep dirt and debrisInstead of metal on metal you have Metal - O-ring - Metal.
Makes the chain last a lot longer. The rubber also holds lubrication better.