So how much should I be concerned about scuff marks from straps or gouges from derailleurs? Seems like just a shiny spot from the leather should do no harm. OTOH: I have a 165mm Suntour crank with 1/32'' gouge from an out of adjustment derailleur. It has held up under single speed service with 230 lbs leaning on it, seems like if it was going to break it would have by now. Do I file and sand the gouge or throw it out?
Just how sure are we that these components (in the broken crank site) were not defective from new and would have failed sooner or later regardless of any marks on them.
Pete Geurds
Douglassville, PA