Give your mountain bike the upgrade it deserves with this sleek, low-profile rear derailleur. The Shadow RD design tucks in tight to avoid trail hazards while you're shredding through technical sections. Specifically built for 2x10 and 2x11-speed setups, it delivers the snappy, reliable shifting Shimano is famous for. It’s a tough-as-nails component that handles muddy climbs and fast descents without breaking a sweat.


                  

                    
                      

                        
Series
                        
Deore M4100
                      
                    
                      

                        
Speed
                        
10/11 Speed
                      
                    
                      

                        
Cage Length
                        
SGS (Long Cage)
                      
                    
                      

                        
Design
                        
Shadow RD (Low Profile)
                      
                    
                      

                        
Drivetrain Compatibility
                        
2x10 Speed, 2x11 Speed
                      
                    
                      

                        
Color
                        
Black
                      
                    
                      

                        
Max Low Sprocket
                        
42T
                      
                    
                      

                        
Min Low Sprocket
                        
42T