Engine type 4 stroke, SOHC
Bore (mm) 53.5 mm
Stroke (mm) 55.2 mm
Piston displacement (cm?) 124 cm?
Compression ratio 9.6 : 1
Carburetor Mikuni BS 26
Starter system Electric starter with kick start
Lubrication system Wet sump
Clutch Dry shoe, automatic, centrifugal type
Transmission Variable change
Drive chain V-belt drive
Front suspension Telescopic, coil spring, oil damped
Rear suspension Swing arm type, coil spring, oil damped
Front brake Drum brake / Disc brake
Rear brake Drum brake
Front tire size 70/90-14 M/C (34P), tube type
Rear tire size 80/90-14 M/C (40P), tube type
Ignition type DC - CDI
Spark Plug NGK : CR6HSA
Denso : U20FS-U
Battery 12V 3.5 Ah / 10 HR
Fuel tank 3.7 L
Engine oil Oil change without filter change: 1,000 ml
Oil change with filter change: 1,100 ml
Overall length 1,860mm
Overall width 655 mm
Overall height 1,050 mm
Wheel base 1,245 mm
Dry mass Step 125 (Drum Brake) 
- 94.2 kg
Step 125 (Disc Brake) 
- 95.5 kg

STEP 125