SSR Motorsports R-Series SR140RB vs KTM SX 150 (2025)

Side-by-side spec comparison, pricing, and a plain-English breakdown of how the SSR Motorsports R-Series SR140RBstacks up against the KTM SX 150. Numbers pulled from manufacturer spec sheets — click either bike for the full review.

Spec comparison

SpecSSR Motorsports R-Series SR140RBKTM SX 150
Model year20252025
Price
Engine140 cc144 cc
Fuel typepetrolpetrol
Tires100/70 R17 / 100/90 R14Dunlop® GEOMAX MX34 80/100 R21 51M / Dunlop® GEOMAX MX34 100/90 R19 57M

SSR Motorsports R-Series SR140RB vs KTM SX 150 — which should you buy?

Picking between the SSR Motorsports R-Series SR140RB and the KTM SX 150 usually comes down to the numbers you care about most. On paper, the SSR Motorsports R-Series SR140RB brings its published horsepower, while the KTM SX 150 counters with its own power figure.

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: