Small in capacity while big on capability, the 2023 TC 125 receives multiple technical upgrades headlined by the inclusion of EFI and E-Start technology. These revisions are instantly noticeable as after a simple push of a button, the engine starts easily, and, once out on track, the TC 125 delivers an improved experience for all riders. Further changes include a new cylinder with a highly innovative electronic exhaust control system, and a lighter crank for improved throttle response and reduced vibration. Continuing to benefit from class-leading components including WP Suspension, a ProTaper handlebar, and a polyamide-reinforced subframe, the TC 125 receives all-new bodywork and a striking new look to remain at the forefront of the highly competitive 125cc class.
The new TC 125 engine sets the standard for performance in the highly competitive 125cc class and weighs in at just 17.9kg. The lightweight engine features the latest innovations to produce more torque while retaining its high-revving 2-stroke character. These revisions ensure both beginners and seasoned professionals can ride faster on the race track while further centralisation of rotating mass inside the engine significantly benefits the overall handling of the TC 125.
The new cylinder features a 54 mm bore and due to the introduction of EFI on the TC 125, the powervalve is replaced with an innovative electronic exhaust control system. Using an actuator, the lateral exhaust port and main exhaust port open simultaneously for maximum power delivery.
A redesigned crankshaft is 300 g lighter for improved throttle response and minimal vibration. The component is precisely positioned to ensure rotational mass has very little effect on the overall handling of the motorcycle.
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.
Made from 60% polyamide and 40% aluminium, the new two-piece subframe for 2023 ensures exceptional strength and durability at an overall weight of just 1.8 kg. The lower subframe spars and frame mounts are manufactured from cast aluminium for significantly improved reliability. The upper section of the subframe is made from injection-moulded polyamide to enable specific flex characteristics and ensure a lightweight construction.
TRANSMISSION 6-speed
STARTER Electric starter
STROKE 54.5 mm
BORE 54 mm
CLUTCH Wet multi-disc DS clutch, Brembo hydraulics
DISPLACEMENT 124.8 cm³
EMS Vitesco Technologies EMS
DESIGN 1-cylinder, 2-stroke engine
WEIGHT (WITHOUT FUEL) 92.5 kg
TANK CAPACITY (APPROX.) 7.2 l
FRONT BRAKE DISC DIAMETER 260 mm
REAR BRAKE DISC DIAMETER 220 mm
FRONT BRAKE Disc brake
REAR BRAKE Disc brake
CHAIN X-Ring 5/8 × 1/4”
FRAME DESIGN Central double-cradle-type 25CrMo4 steel
FRONT SUSPENSION WP XACT-USD, Ø 48 mm
GROUND CLEARANCE 350 mm
REAR SUSPENSION WP XACT Monoshock with linkage
SEAT HEIGHT 939 mm
STEERING HEAD ANGLE 63.9 °
SUSPENSION TRAVEL (FRONT) 305 mm
SUSPENSION TRAVEL (REAR) 293 mm