So, I am de-singlespeeding my single speed for my father-in-law. After putting the chain rings back on I am getting some chain rub when it is on the middle ring (that is, the chain is on the middle and rubbing the big).
I feel like there were some little spacers between these (other than the space provided by the crank). Is this right? Or is there no spacer required?
If so, does anyone know where I put those spacers?
FWIW- its an old trek 7000