Gregger
Living Legend
I've had the OEM heated grips on my 2012 Roadster from day 1.  Over 60k with no issues.  You do need to ensure there is a bit of freeplay in the cables where they attach to the grip to prevent fatigue failures.  Since I installed the grips, made sure there were no sharp edges and wire strains where the wiring entered the handlebars.  Seems to have worked.
	
		
			
		
		
	
				
			 
					
					
				 
			
			 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		