Positioned in Yamaha's scooter motorcycle lineup, the 2016 Yamaha Smax utilizes a 155 cc (9.5 cu in) liquid-cooled single cylinder, four-stroke layout. Internal engine geometry specifies a bore and stroke of 58.0 x 58.7 mm (2.3 x 2.3 inches) with a 11.0:1 compression ratio.
On the scales, the Smax measures 148.8 kg (328 lbs) wet (curb). Rider ergonomics and chassis geometry center around a 795 mm (31.3 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,405 mm (55.3 in) wheelbase engineered for quick, flickable steering geometry. The 7.57-liter (2 US gal) fuel tank paired with a rated consumption of 2.9 L/100 km provides an estimated theoretical range of roughly 261 km (162 miles) between fill-ups.
Within MotoLibrary's Yamaha archive, this model family spans 8 indexed model years from 2015 to 2022, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Theoretical Range
~261 km (162 mi)
Engine
Displacement155.0 ccm (9.46 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Compression11.0:1
Bore x Stroke58.0 x 58.7 mm (2.3 x 2.3 inches)
Valves/Cylinder4
Fuel SystemInjection
Fuel ControlSingle Overhead Cams (SOHC)
CoolingLiquid
Transmission
GearboxAutomatic
Final DriveBelt (final drive)
DrivelineV-Belt Automatic
Performance
Fuel Consumption2.90 litres/100 km (34.5 km/l or 81.11 mpg)
Greenhouse Gases67.3 CO2 g/km. (CO2 - Carbon dioxide emission)
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.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
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.
