01. Faster and wiser
The new TC 250 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 TC 250 receives significant updates with Electronic Fuel Injection (EFI) reducing running costs, removing the need for jetting changes, and improving reliability. The addition of E-Start adds to the simplicity of this popular model and guarantees fast starting in all conditions.
The new cylinder retains a 66.4 mm bore and with the introduction of EFI for 2023, the traditional powervalve is replaced with 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.
The crankshaft is designed with weight reduction in mind to increase the liveliness and throttle response from the engine. The perfect balance of rotating masses is achieved by balancing the weights of the crankshaft flywheel, the new rotor, and the counter balancer shaft.
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 TC 250 while redesigned, symmetrical engine mounts further improve flex characteristics.
Counter balancer shaft
The TC 250 features an innovative laterally mounted counter balancer shaft. This shaft significantly reduces engine vibration, resulting in a smoother and more comfortable ride.
The Damped Diaphragm Steel (DDS) clutch fitted to the TC 250 is unique as a single diaphragm steel pressure plate is utilised instead of traditional coil springs. Housed inside a CNC machined steel basket, the overall clutch design contributes to the compact engine layout and features a damping system for improved traction and durability.
The TC 250 features a 5-speed gearbox manufactured exclusively by Pankl Racing Systems for the highest level of durability and ensures smooth and precise shifting. For 2023, a redesigned gear lever tip design offers improved leverage and prevents dirt build-up, even in the toughest conditions.