I am offering you a Cozon mountain bike, large size, in excellent condition, COZON LIRIN bicycle . Specifications: Company: COZON Model: LIRIN Type: Mountain Size: 17.5 Gears: 3 front, 9 rear Weight: Approximately 15 kg Brakes: Hydraulic Disc (Tektro) Frame: Aluminum . Features and Additions: - Manual wheel removal for easy loading and unloading - Seat forward/backward adjustment - Seat tilt forward/backward - Manual seat height adjustment - The seat has been replaced . Important Notes: There are notes for serious buyers.