How Much Power Does the 2023 KTM 125 SX Make?


Andrew Oldar

by: Andrew Oldar


KTM had a big year in 2023. Not only did the Austrian manufacturer give its entire full-size motocross and cross-country lineups a completely new chassis, shock, and updated fork, it also granted each bike with model-specific engine updates. For the two-strokes, this meant the addition of throttle body injection (TBI) and electronic power valves.With the trio of full-size motocross models (the 125 SX, 250 SX, and 300 SX) leaving carburetors and jets behind, many were curious how the new premix-burning machines would run on the track. Taking performance testing one step further, we ran the smal ...

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