Shimano tiagra 4700 10 speed rear derailleurenjoy smooth, reliable shifting with the tiagara 10 speed rear derailleur from shimano'. '.strtoupper('i')deal for high mileage cycling, this component features a redesigned cable pitch, for exceptionally smooth gear changes and low, easy maintenance'. '.strtoupper('s')uitable for use with cassettes with a 34 teeth large sprocket.featuresspeed 10 speed compatibility shimano 4700 10 speed shifters mounting conventional mount intended use road material aluminiumplease note due to a specific pull ratio, this derailleur is only compatible with tiagra 4700 shifterspart no short cage rd4700ss medium cage rd4700gsa 2 year warranty is offered with all shimano products from chain reaction cycles 3 years on dura ace and xtr products.buy shimano components from chain reaction cycles, the world's largest online bike store.