• Liquid-cooled • 4-stroke Single • DOHC 4-valve • Digital Fuel Injection (KLX250) • 249 cm3 • 6-speed • 138 kg (KLX250) / 135 kg (KLX250S)
• Air-cooled, 4-stroke, Single cylinder • SOHC, 2 valves • Kick starter and electric starter • 144 cm³ • 5-speed • 108 kg