Shimano FD-R7150 105 Di2 12-Speed Front Derailleur

Shimano FD-R7150 105 Di2 12-Speed Front Derailleur Effortless and accurate; the FD-R7150 105 Di2 12-Speed Front Derailleur brings electronic shifting to Shimano’s third-tier groupset. With just a light press on the shifter lever; the derailleur instantly moves the chain across the chainrings whilst the auto-trim function means that the derailleur is always in the right position to avoid chain rub; whatever rear sprocket is selected. There are two programmable modes available to help manage shifting functions; Synchro shift allows a single shifter to control both front and rear shifts; always maintaining the correct ratios for optimal cadence and semi-synchronised shifting means that the system will automatically switch rear sprockets to compensate when a front shift is activated.