I think it's a "newer" model Schwinn (had "SBC" on head tube; removed) 29er frame; originally had 29" single speed wheel set (not pictured, nor available) on it. Now upgraded with Alloy Shimano Nexus 7 speed internal hub coaster brake 26" wheelset/shifter with front internal generator for light set. Front light is mounted, but needs proper connector. Good street/compacted path tires. Rear light is included, but not mounted on bike currently. Seat post seems frozen at height pictured; I did not, and will not give it any great effort (too old and weak). I'm 5'7", and it is a comfortable height for me riding. Chat or email only... If I don't reply, I didn't get your message; feel free to try again, they don't always go through... Thanks for looking! Peace