Give your road bike the smooth-spinning upgrade it deserves with this Ultegra-level press-fit assembly. The fiber-reinforced polymer cups keep things whisper-quiet while shielding your frame from unwanted noise or damage. Installation is a total breeze, letting you spend less time in the workshop and more time conquering the open road. With sealed cups keeping out the muck, this maintenance-free powerhouse is ready for every mile.


                  

                    
                      

                        
Material
                        
Fiber Reinforced Polymer
                      
                    
                      

                        
Series Level
                        
Ultegra
                      
                    
                      

                        
Cup Diameter
                        
1.61 inches (41mm)
                      
                    
                      

                        
Compatible Shell Width
                        
3.41 inches (86.5mm)
                      
                    
                      

                        
Crankset Compatibility
                        
Shimano HollowTech II
                      
                    
                      

                        
Installation Type
                        
Press-Fit
                      
                    
                      

                        
Sealing
                        
Sealed Maintenance-Free Cups
                      
                    
                      

                        
Included Components
                        
Left and Right Cups, Inner Cover, O-Rings