Diamondback 2013 Women's Interval Performance Hybrid Bike Interval Elite Butted 7005 Alloy Performance Hybrid Geometry Frame, Formed Top Tube, w/Intgrated Headtube DBR AERO Performance Alloy leg, Alloy Steerer FSA VERO Compact N10 50,34t 10spd rings Shimano Tiagra Derailleurs & 10-Spd Rapid Fire Shifters 28h frt / 28h rear EQUATION AERO DEEP Section rim SM/15in fits riders 5ft 4in to 5ft 7in, MD/17in fits riders 5ft 7in to 5ft 10in, LG/19in fits riders 5ft 10in to 6ft