KTM SX 50 vs GAS GAS TXT Boy 50 (2026)

Side-by-side spec comparison, pricing, and a plain-English breakdown of how the KTM SX 50stacks up against the GAS GAS TXT Boy 50. Numbers pulled from manufacturer spec sheets — click either bike for the full review.

Spec comparison

SpecKTM SX 50GAS GAS TXT Boy 50
Model year20262004
Price$5,099
Engine49 cc50 cc
Weight42 kg42 kg
Seat height653 mm24 mm
Fuel capacity2.0 L0.8 L
Fuel typepetrolpetrol
TransmissionAutomatic, 1 speed, Chain2-speed
Front brakesHydraulic DiscSingle disc
Rear brakesHydraulic DiscSingle disc
TiresMaxxis® MX-ST 2.50 X 12 42J / Maxxis® MX-ST 2.75 X 10 38J

KTM SX 50 vs GAS GAS TXT Boy 50 — which should you buy?

Picking between the KTM SX 50 and the GAS GAS TXT Boy 50 usually comes down to the numbers you care about most. On paper, the KTM SX 50 brings its published horsepower in a 42 kg package, while the GAS GAS TXT Boy 50 counters with its own power figure at 42 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: