2020 Yamaha Ray Z Technical Analysis & Specification Breakdown
Engineered by Yamaha for the scooter motorcycle segment, the 2020 Yamaha Ray Z relies on a 113 cc (6.9 cu in) air-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 7.2 HP (5.3 kW) at 7,500 rpm while maximum torque reaches 8.1 Nm (6 lb-ft) at 5,000 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. With a specific output of 63.7 HP per liter and a 2,500 rpm working window between peak torque (5,000 rpm) and peak power (7,500 rpm), the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the Ray Z measures 104 kg (229 lbs) dry, translating to a power-to-weight ratio of 0.07 HP/kg (14.44 kg per horsepower). Rider ergonomics and chassis geometry center around a 760 mm (29.9 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,270 mm (50 in) wheelbase engineered for quick, flickable steering geometry. The 5-liter (1.3 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Yamaha archive, this model family spans 3 indexed model years from 2017 to 2020, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
63.7 HP/L
Power-to-Weight
0.07 HP/kg (14.44 kg/HP)
Power Band Window
5,000–7,500 rpm
Standover Height
760 mm (29.9 in)
Engine
Displacement113.0 ccm (6.90 cubic inches)
Engine TypeSingle cylinder, four-stroke
Power7.2 HP (5.3 kW)) @ 7500 RPM
Torque8.1 Nm (0.8 kgf-m or 6.0 ft.lbs) @ 5000 RPM
Compression8.8:1
Bore x Stroke50.0 x 57.8 mm (2.0 x 2.3 inches)
Valves/Cylinder2
Fuel SystemCarburettor
Fuel ControlSingle Overhead Cams (SOHC)
IgnitionCDI
LubricationWet Sump
CoolingAir
Transmission
GearboxAutomatic
Final DriveBelt (final drive)
ClutchDry centrifugal
Chassis
Frame TypeSteel tube underbone
Rake26.5°
Trail100 mm (3.9 inches)
Front SuspensionTelescopic fork
Rear SuspensionUnit swingarm
Wheelbase1270 mm (50.0 inches)
Ground Clearance128 mm (5.0 inches)
Wheels & Brakes
Front Tyre90/100-10
Rear Tyre90/100-10
Front BrakesExpanding brake (drum brake)
Front Brake Ø130 mm (5.1 inches)
Rear BrakesExpanding brake (drum brake)
Rear Brake Ø130 mm (5.1 inches)
Dimensions & Weight
Dry Weight104.0 kg (229.3 pounds)
Power/Weight0.0692 HP/kg
Seat Height760 mm (29.9 inches) If adjustable, lowest setting.
Overall Height1090 mm (42.9 inches)
Overall Length1835 mm (72.2 inches)
Overall Width675 mm (26.6 inches)
Fuel Capacity5.00 litres (1.32 US gallons)
Oil Capacity0.80 litres (0.85 US quarts)
Other
StarterElectric & kick
Color OptionsRegal Red, Astral Blue, Moon Walk White, True Blue
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.