Yamaha WR155R

Engine	Front tire
Liquid-cooled, 4-stroke, SOHC, 4-valve	2.75 – 21 45P Tube type

Cylinder arrangement	Rear tire
Single cylinder	4.10 – 18 59P Tube type

Displacement	Front brake
155cm3	Hydraulic single-disc brake

Bore & stroke	Rear brake
58.0 × 58.7mm	Hydraulic single-disc brake

Compression ratio	Ignition system
11.6:1	TCI (Transistor Controlled Ignition)

Maximum output	Battery
12.3kW (16.7PS) / 10000r/min	YTZ4V / GTZ4V

Maximum torque	Headlight
14.3 N.m (1.5 kgf.m) / 6500r/min	12V 35W / 35W × 1

Starting system	Brake/tail light
Electric starter	12V 18W / 5W × 1

Lubrication system	Length x width x height
Wet sump	2145 mm X 840 mm X 1200 mm

Engine oil capacity	Seat height
1.10L	880 mm

Fuel supply system	Wheelbase
Fuel Injection	1430 mm

Clutch type	Minimum ground clearance
Wet, multiple-disc	245 mm

Transmission type	Curb weight (with oil and full fuel tank)
Constant mesh, 6-speed	134 kg

Frame type	Fuel tank capacity
Semi-double cradle	8.1L

Front Suspension	Meter panel
Telescopic fork	Fully digital

Rear Suspension
Swingarm (Link suspension)

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