Bought this used over the summer and did not use as much as I wanted due to using my other bike. Its in great condition and recently I had the gear wires re-aligned. Its a great light bicycle that is perfect for gravel roads, mountain biking or just road biking. Not sure about the frame size or frame material as well as wheel size so I guessed in the details. I would say its great for someone 5"7 to 6"2. The seat is easy to adjust.