The 2026 Husqvarna TC 125 is powered by a 125 cc liquid-cooled single-cylinder 2-stroke engine with electronic fuel injection, reeds and power valves, 6-speed transmission, and electric start for competitive motocross performance. The chassis features a lightweight chrome-molybdenum steel frame with WP XACT 43 mm inverted front forks offering 310 mm travel and a WP XACT rear shock with linkage providing 310 mm travel for precise handling and traction. Braking is handled by ByBre disc brakes with a 260 mm front rotor and 220 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. 96 kg dry weight, seat height approx. 945 mm, ground clearance approx. 350 mm, compression ratio 11.9:1, bore 54 mm, stroke 54.5 mm, electric start system, lightweight aluminum swingarm, and adjustable suspension settings for elite level motocross capability.