whats the difference between deore dx and lets say exage 500. Is there any advantage in breaking distance or is it just a name thing.  And why i'm asking why can't you use canti break levers on V. They look the same to me. Please remember i'm new to this i only wanted to build my old bike up, now i have 3 on the go.
				
			 
 
		 
 
		 
			 
 
		
 
	 
	
 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		