Shimano ultegra r8000 11 speed front mechthe ultegra r8000 11 speed front mech evolves to provide an ultra smooth shifting action that flawlessly moves your chain up and down whenever required with zero delay you can enjoy a shift that is crisp and concise featuresnew designed pull arm for more direct and easy shiftingtop gear teeth46 53tchainstay angle 61 66chain line 43 5weight 92g braze on 106g band ona 2 year warranty is offered with all shimano products from chain reaction cycle