Sleek balanced and consistent the tiagra 4700 series provides serious entry level riding performance with cascaded technology from dura ace features consistently smooth and light shifting operation wider rider tuned 10 speed gearing options short cage derailleur robust adjustability cassette compatibility 10 maximum sprocket low sprocket 34t top sprocket12t front double 20t low sprocket 32t top sprocket12tfront triple minimum sprocket low sprocket 28t top spr