Shimano alfine s500 trigger shifterprecise shifting from the refined and sporty alfine s500 trigger shifter shift lever with optical gear display featuresrapidfire plus shifting lever for inter 8alfine refined sporty design with optical gear displayright handspecificationsshift lever type rapidfire plus cassette compatibility 8 speed inter 8 pitch front shifting noinstant release yes multi release no2 way release nooptical gear display yesshift cable casing sealed sis sp