Alton Corsa DP-7 700C Wheel 7-Speed DP-780 Frame Hybrid Bike Stylish and durable frame with new advanced steel material called dp-780 Light weight and rear rack for maximum utility 7-speed SRAM X3 rear derailleur for durable and easy commuting ride Vintage European look with classical color for style 700C wheels; 2 frame sizes: 22 inch and 20 inch