cafiend  has left a new comment on your post "Dork disk": 
 Pie plates don't work any better than the federally-mandated "safety" devices do.  They'll protect from some degree of misalignment, but they can be circumvented by any number of common situations, including simply repeated overshifts of a misadjusted derailleur. The disk may wear through or break loose.  Stay?  Go?  "Amputation not necessary.  In two week, it fall off." 
  
 
 Posted by  cafiend  to  Cyclelicious at  10/26/2008 08:37:00 PM 
 
