The 2025 GasGas MC 65 is powered by a 64.9 cc liquid-cooled single-cylinder 2-stroke engine with electronic fuel injection, Power Valves, 6-speed transmission, and electric start for competitive youth motocross performance. The chassis features a lightweight chrome-molybdenum steel frame with WP XACT 43 mm inverted front forks offering 205 mm travel and a WP XACT rear shock with linkage providing 205 mm travel for agile handling and traction. Braking is handled by disc brakes with a 220 mm front rotor and 185 mm rear rotor supported by a hydraulic brake system. The bike rides on 17-inch front and 14-inch rear wheels with high-performance motocross tire sizes 80/100 front and 110/90 rear, and uses a 520 chain drive. Additional specifications include Approx. 82 kg dry weight, Approx. 825 mm seat height, Approx. 310 mm ground clearance, compression ratio 10.8:1, bore 45 mm, stroke 40 mm, adjustable suspension, electric start, and lightweight aluminum swingarm optimized for youth motocross capability.