Across 18 covered model years from 2008 to 2025, the Yamaha YZ85 motorcycle has supplied wet/running weights ranging from 156.1 lb (70.8 kg) to 160.9 lb (73 kg) and dry weights ranging from 145.9 lb (66.2 kg), depending on model year.
Yamaha YZ85 weight overview
Its low overall mass should be most noticeable off the throttle: moving it by hand, backing out of a parking space and managing stop-start riding should take less effort than on a heavy road bike.
Very Light Motorcycle
How heavy is the Yamaha YZ85?
wet weight
Using a model-level wet weight comparison, the Yamaha YZ85 is lighter than about 90% of 15 Yamaha motocross bikes with compatible weight data.
Dry vs 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 YZ85 weight & related specs
| Model years covered | 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 |
|---|---|
| Wet / running weight | 156.1 lb (70.8 kg) to 160.9 lb (73 kg) |
| Dry weight | 145.9 lb (66.2 kg) |
| Engine displacement | 84.7 cc to 85 cc |
| Torque | 12.8 lb-ft (17.3 Nm) |
| Fuel capacity | 1.3 US gal (4.92 L) |
| Full-tank fuel weight (estimated) | 8.1 lb (3.7 kg) |
Weight changes by model year
The 2008 model is used as the baseline where data is available. Only later supplied values that differ are shown below. A year pill does not mean every individual weight field was supplied for that year.
Useful weight calculations
| Torque per 100 lb | 8.13 lb-ft / 100 lb |
|---|---|
| Displacement per pound | 0.53 cc / lb to 0.58 cc / lb |
| Weight per 100 cc | 171.7 lb / 100 cc to 189.3 lb / 100 cc |
| Fuel weight as % of bike weight | 5% to 5.5% |
| Weight with full tank | 154 lb (69.9 kg) |
What the weight numbers tell you
Yamaha YZ85 weight FAQ
What is the Yamaha YZ85 dry and wet weight?
Across the covered 2008-2025 years, listed wet/running weight is 156.1 lb (70.8 kg) to 160.9 lb (73 kg) and listed dry weight is 145.9 lb (66.2 kg). Check the year-change section because the exact figure can vary by model year.
Is the Yamaha YZ85 lighter or heavier than other Yamaha motocross bikes?
It is comparatively light for this Yamaha category. The model lands near the 10th percentile for weight in the compatible dataset.
Which Yamaha YZ85 years have different weight specs?
The supplied data shows different weight figures across the 2008-2025 model years. Use the year-specific changes section above for the exact value attached to each changed year. No usable dry/wet figure was supplied for 2024, 2025.
How much does a full tank add to the Yamaha YZ85?
Based on the supplied 1.3 US gal (4.92 L) tank capacity, the gasoline itself weighs about 8.1 lb (3.7 kg) when full. This helps explain part of the difference between dry and ready-to-ride mass.
What is the combined Yamaha YZ85 and rider weight?
Using the model’s representative wet/running weight and a 180 lb rider, the combined bike-and-rider mass is about 337 lb (152.8 kg) before riding gear, luggage or a passenger.
What is the estimated Yamaha YZ85 weight with a full tank of gas?
Using the listed dry weight plus the calculated fuel mass, the estimated weight with a full tank is 154 lb (69.9 kg). That still may not equal official curb weight because dry-weight definitions can exclude other fluids or equipment.
What is the Yamaha YZ85 torque per 100 lb of bike weight?
Where compatible torque and weight figures are available, the model works out to 8.13 lb-ft per 100 lb. This gives more context than torque alone because it relates engine twist to the mass it has to move.
How many cc does the Yamaha YZ85 have per pound?
The available figures work out to 0.53 cc per lb to 0.58 cc per lb. This is not a performance rating, but it is a useful way to compare engine size against total motorcycle mass.
How does the Yamaha YZ85 compare with the median Yamaha motocross bike weight?
Compared with the median Yamaha motocross bike weight of 231 lb (104.8 kg), the model is roughly 74.1 lb (33.6 kg) lighter.
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.