Product Details: 2013 Shimano Sora 3500 9-speed Road Bike Groupset Group Set Black: Shimano ST-3500 2x9-speed shift and brake levers Shimano FD-3500 front derailleur Shimano RD-3500 9-speed rear derailleur Shimano FC-3550 crankset (34/50T, 170mm) Shimano BR-3500 brake front and rear calipers Shimano CS-HG-50-9R-speed cassette (11-25T) Shimano CN-HG53-9-speed chain