KENT Women's Avondale Hybrid Bicycle with Sure Stop Brakes, 11.25" Frame: 6061 Aluminum rakes: Linear Pull Aluminum (V-brakes) with Sure Stop One lever Anti-lock Braking System equipped Rear Derailleur: Shimano Tourney (7speed) RD-TX35 Shifters: Shimano RevoShift SL-RS25 Cassette: RNR 14T 14T/28T