For sale: Trek bike, model 820, size M/L. Key Technical Specifications: Frame: Unisex frame made of strong (Custom Steel) and shock-resistant carbon steel. Suspension: Front suspension system to provide a smooth ride. Gear System: 21 speeds (Shimano Tourney front and rear derailleur) to suit different terrains and inclines. Brakes: Linear pull brakes (V-Brakes) providing reliable stopping power. Wheels and Tires: 26-inch wheels, equipped with semi-smooth tires that roll excellently on asphalt and light dirt trails. Weight: Ranges between 14 to 15 kilograms. These are the general specifications of the bike. The bike is used and very clean. Please do not undervalue the item.