RD-4700 SHIMANO TIAGRA - Rear Derailleur for Road 10 speed The SHIMANO TIAGRA rear derailleur shifts with a consistently smooth, light action. Designed for 10-speed road drivetrains, it is offered in short and medium cage options. Low sprocket: Max. 34T (Front double), 32T (Front triple) Low sprocket: Min. 28T (Front double), 25T (Front triple)