Suzuki GP RT63 vs KTM 125 SX (2024)

Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Suzuki GP RT63stacks up against the KTM 125 SX. Numbers pulled from manufacturer spec sheets — click either bike for the full review.

Spec comparison

SpecSuzuki GP RT63KTM 125 SX
Model year19632024
Price
Engine124 cc125 cc
Weight92 kg
Seat height38 mm
Fuel capacity1.9 L
Fuel typepetrolpetrol
Transmission8-speed6-speed
Front brakesSingle disc
Rear brakesSingle disc
Tires1.6-21 / 2.15-19

Suzuki GP RT63 vs KTM 125 SX — which should you buy?

Picking between the Suzuki GP RT63 and the KTM 125 SX usually comes down to the numbers you care about most. On paper, the Suzuki GP RT63 brings its published horsepower, while the KTM 125 SX counters with its own power figure at 92 kg.

Our spec tables above highlight the winning number on each line. For the full rider-focused reviews including real-world fuel economy, service costs and available colors, click into either bike: