deragliatore anteriore shimano 105 di2 2x12v fd r7150

deragliatore anteriore shimano 105 di2 2x12v fd r7150The SHIMANO Di2 electronic shifting allows you to switch from large to small chainrings, or vice versa, whenever you want, minimizing the risk of chain drop. Similarly, it is possible to operate the shifting without needing to trim the front derailleur to avoid chain rub. The synchronized and semi synchronized shifting functions can be selected via the E TUBE app. With digitally precise electronic shifting and coordinated communication between the