Across 8 covered model years from 2015 to 2022, the Yamaha Smax motorcycle has a listed wet/running weight of 328 lb (148.8 kg).
Yamaha Smax weight overview
This sits in a fairly light weight range. That does not guarantee easy handling, but it reduces the sheer mass you have to manage at a stop.
Light Motorcycle
How heavy is the Yamaha Smax?
wet weight
Using a model-level wet weight comparison, the Yamaha Smax is heavier than about 60.9% of 129 Yamaha scooters with compatible weight data.
Ready-to-ride weight
Bike + rider total weight
These totals use the model’s representative wet weight. They exclude riding gear, luggage and a passenger.
Yamaha Smax weight & related specs
| Model years covered | 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 |
|---|---|
| Wet / running weight | 328 lb (148.8 kg) |
| Engine displacement | 155 cc |
| Fuel capacity | 2 US gal (7.57 L) |
| Full-tank fuel weight (estimated) | 12.4 lb (5.6 kg) |
Weight changes by model year
Useful weight calculations
| Displacement per pound | 0.47 cc / lb |
|---|---|
| Weight per 100 cc | 211.6 lb / 100 cc |
| Fuel weight as % of bike weight | 3.8% |
What the weight numbers tell you
Yamaha Smax weight FAQ
How heavy is the Yamaha Smax ready to ride?
Listed ready-to-ride weight is 328 lb (148.8 kg). The year-specific section above shows which years use each figure where the supplied value changes.
Is the Yamaha Smax heavy compared with other Yamaha scooters?
It sits fairly close to the middle of the category. Its representative wet weight is around the 61st percentile among 129 compatible Yamaha scooters.
Does the Yamaha Smax weight change by model year?
Not in the usable weight data on this page. Across the covered 2015-2022 years, the supplied weight figure remains the same where comparable values are available.
How much does the Yamaha Smax fuel weigh?
The listed tank capacity is 2 US gal (7.57 L). Using approximately 0.745 kg/L gasoline, a full tank is roughly 12.4 lb (5.6 kg). That is an estimate for fuel mass, not an official Yamaha curb-weight calculation.
How heavy is the Yamaha Smax with an average-size rider?
A 180 lb rider brings the simple bike-plus-rider total to roughly 508 lb (230.4 kg) using the representative wet/running figure. Gear and luggage would add more.
How large is the Yamaha Smax engine for its weight?
Engine displacement relative to bike weight is 0.47 cc per lb. It can help compare motorcycles from very different displacement classes without relying on cc alone.
Is the Yamaha Smax above or below the typical Yamaha scooter weight?
The model sits about 61.3 lb (27.8 kg) heavier than the compatible median Yamaha scooter weight used on this page.
Will the Yamaha Smax feel heavy at low speed?
It is most likely to feel heavy while stopped, backing up or on a slope rather than once settled at normal riding speed. Seat height and center of gravity matter a lot.
Motorcycle specifications can vary by model year, market, equipment and the exact dry/curb-weight definition. Calculated fuel-weight and ratio figures on this page are estimates derived from the supplied specifications. Confirm critical figures in the owner’s manual or on the official Yamaha Motorsports website.