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 sprocket:12T (front double) / 20T Low sprocket: 32T / Top sprocket:12T(front triple) Minimum Sprocket - Low sprocket: 28T / Top sprocket:11T (front double) / 20T Low sprocket: 25T / Top sprocket:11T(front triple) Maximum Front Difference - 16T (front double) / 20T (front triple) Total Capacity - 39T (front double) / 41T (front triple)