Maximum Power 8.3 kW {11 PS} / 8,000 rpm
Maximum Torque 12.0 Nm {1.2 kgfm} / 6,000 rpm
Engine 4-stroke Single
Displacement 144 cc
Bore x Stroke 58.0 × 54.4 mm
Compression Ratio 9.5:1
Valve System SOHC, 2 valves
Fuel System Carburettor: Keihin PB20
Ignition Digital DC-CDI
Starting Electric
Cooling Air-cooled
Lubrication Forced lubrication, wet sump
Transmission 5-speed, return
Primary Reduction Ratio 2.880 (72/25)
Gear Ratio: 1st 2.667 (40/15)
Gear Ratio: 2nd 1.895 (36/19)
Gear Ratio: 3rd 1.474 (28/19)
Gear Ratio: 4th 1.182 (26/22)
Gear Ratio: 5th 1.000 (24/24)
Final Reduction Ratio 3.571 (50/14)
Clutch Wet multi-disc, manual
Final Drive Chain

Frame Perimeter, box-section, high-tensile steel
Front Suspension ø33 mm telescopic fork
Rear Suspension Uni Trak, single shock with adjustable spring preload
Front Wheel Travel 180 mm
Rear Wheel Travel 180 mm
Rake 27.0°
Trail 85 mm
Steering Angle (L/R) 41° / 41°
Front Tyre 70/100-17 40M
Rear Tyre 90/100-14 49M
Front Brake/s ø220 mm petal disc
Front Caliper/s Dual-piston
Rear Brake ø186 mm petal disc
Rear Caliper Single-piston

Dimensions (LxWxH) 1,820 × 790 × 1,050 mm
Wheelbase 1,260 mm
Road Clearance 235 mm
Seat Height 780 mm
Curb Weight* 93 kg
Fuel Capacity 5.8 litres
Model Code KLX140ASFNN