01. Faster and wiser
The new generation TX 300 engine is at the pinnacle of 2-stroke performance and weighs just 52.6 lb (23.9 kg). Complete with the latest technical innovations for 2023, the TX 300 receives significant updates with the new generation of Electronic Fuel Injection (EFI) and electronic exhaust control reducing running costs and improving reliability. The new system works without a separate oil tank but with pre-mixed fuel identical to the motocross models. The result is a tailormade power delivery for each gear and every situation. The known E-Start adds to the simplicity of this popular model and guarantees fast starting in all conditions.
The cylinder features a 72 mm bore and an electronic exhaust control system. This highly innovative technology manages the opening of the lateral exhaust ports before the main exhaust ports open to deliver strong, controllable power. The upper contour of the exhaust port features a machined finish for improved port timing and unrivalled performance.
High-pressure die cast production processes allow for the crankcases to be manufactured with a thinner wall thickness to keep the overall weight to a minimum and to position the shaft arrangements in the perfect position for optimised mass centralisation. This clever design aids the overall balance and agility of the TX 300 while redesigned, symmetrical engine mounts further improve flex characteristics.
Designed with weight reduction and performance in mind, the crankshaft in the TX 300 engine improves throttle response and contributes to the lightweight feel of the motorcycle. The perfect balance of rotating masses is achieved by balancing the weights of the crankshaft flywheel, and the new rotor, and thanks to the innovative counter balancer shaft, engine vibration is kept to an absolute minimum.
Counter balancer shaft
The TX 300 features an innovative laterally mounted counter balancer shaft. This shaft significantly reduces engine vibration, resulting in a smoother and more comfortable ride.
The TX 300 features a DDS (Dampened Diaphragm Steel) clutch, which includes a single-diaphragm steel pressure plate instead of traditional coil springs. It integrates a damping system for better traction and durability. The clutch basket is a single-piece CNC-machined steel component, which has been revised to accommodate the new gearbox, and continues to allow the use of thin steel liners that contribute to the compact design of the engine.
The 6-speed gearbox is manufactured exclusively by Pankl Racing Systems and ensures the highest level of durability and reliability. For 2023, a redesigned shift drum and shift fork improve overall leverage, which ensures significantly smoother and more precise shifting. A revised gear lever tip design prevents dirt build-up.