For the 2014 model year, the Yamaha SR400 WrenchMonkees GibbonSlap motorcycle has a listed wet/running weight of 388 lb (176 kg).
Yamaha SR400 WrenchMonkees GibbonSlap weight overview
This is neither unusually light nor extremely heavy. For most riders the practical weight question is more about seat height, center of mass and low-speed balance than the scale number alone.
Middleweight Motorcycle
How heavy is the Yamaha SR400 WrenchMonkees GibbonSlap?
wet weight
Using a model-level wet weight comparison, the Yamaha SR400 WrenchMonkees GibbonSlap is heavier than about 52.8% of 197 Yamaha motorcycles 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 SR400 WrenchMonkees GibbonSlap weight & related specs
| Model years covered | 2014 |
|---|---|
| Wet / running weight | 388 lb (176 kg) |
| Engine displacement | 399 cc |
| Torque | 20.2 lb-ft (27.4 Nm) |
| Fuel capacity | 3.17 US gal (12 L) |
| Full-tank fuel weight (estimated) | 19.7 lb (8.9 kg) |
Useful weight calculations
| Torque per 100 lb | 5.21 lb-ft / 100 lb |
|---|---|
| Displacement per pound | 1.03 cc / lb |
| Weight per 100 cc | 97.2 lb / 100 cc |
| Fuel weight as % of bike weight | 5.1% |
What the weight numbers tell you
Yamaha SR400 WrenchMonkees GibbonSlap weight FAQ
How heavy is the Yamaha SR400 WrenchMonkees GibbonSlap ready to ride?
Listed ready-to-ride weight is 388 lb (176 kg).
Is the Yamaha SR400 WrenchMonkees GibbonSlap heavy compared with other Yamaha motorcycles?
It sits fairly close to the middle of the category. Its representative wet weight is around the 53rd percentile among 197 compatible Yamaha motorcycles.
How much does the Yamaha SR400 WrenchMonkees GibbonSlap fuel weigh?
The listed tank capacity is 3.17 US gal (12 L). Using approximately 0.745 kg/L gasoline, a full tank is roughly 19.7 lb (8.9 kg). That is an estimate for fuel mass, not an official Yamaha curb-weight calculation.
How heavy is the Yamaha SR400 WrenchMonkees GibbonSlap with an average-size rider?
A 180 lb rider brings the simple bike-plus-rider total to roughly 568 lb (257.6 kg) using the representative wet/running figure. Gear and luggage would add more.
How much of the Yamaha SR400 WrenchMonkees GibbonSlap total weight comes from fuel?
Based on the available weight basis, a full tank of gasoline represents about 5.1% of the motorcycle’s weight.
How does Yamaha SR400 WrenchMonkees GibbonSlap torque compare with its weight?
The calculated torque-to-weight range is 5.21 lb-ft per 100 lb. It is useful for comparing bikes with very different overall weights.
What is the Yamaha SR400 WrenchMonkees GibbonSlap engine-size-to-weight ratio?
Engine displacement relative to bike weight is 1.03 cc per lb. It can help compare motorcycles from very different displacement classes without relying on cc alone.
How far is the Yamaha SR400 WrenchMonkees GibbonSlap from the median Yamaha motorcycle weight?
The model sits about 13 lb (5.9 kg) heavier than the compatible median Yamaha motorcycle weight used on this page.
Will the Yamaha SR400 WrenchMonkees GibbonSlap 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.