I'm currently plaqued by a simple problem. The Fuji chain skips under
load on the 13 tooth rear cog. Is my chain too long? I've tried moving the
axle back in the dropouts to no avail. When the chain is on the 52/26 combo
the Suntour Cyclone pulley cage is at a 45 degree angle which is how I
determined chain length to begin with.
Scott...sounds like standard cog wear to me. Your 13 will be the first to go assuming you like taller gears. Replace both the cogs and the chain. Anything else is a short term fix