Technical specifications of the original are in the photos. The bike is 5 years old. 1st owner, purchased at a shop in Krotoszyn. The entire drivetrain was replaced every season. Last year, I invested in a RockShox "Judy" suspension fork (very good condition) with thicker stanchions than the original Suntour. M/L frame, very light and durable aluminum, newer type with internal cable routing, cool design. Currently, the drivetrain is Acera, slightly higher spec than the original Altus, in fair/good condition (if someone wants it perfect, I recommend replacing it), but it is perfectly sufficient...