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Originally Posted by akumabito
Stability shouldn't be much of an issue - I won't be racing it, and the center of gravity would be pretty low. Besides, there's something else a 4th wheel adds: complexity.
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Valid points.
Be sure to keep an eye on the CoG and the weight distribution.
Shifting weight aft will give more traction, but can result in the CoG going outside the triangular wheelbase more easily - thus rolling the vehicle.
It happens on velomobiles.
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Looks like a 250cc motorcycle engine will be the ticket then.. anyone know of particular models that get good fuel economy?
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Search the database at
Advanced search - Spritmonitor.de
Use very few search factors - say just vehicle type : two-wheeler - gets you a list of vehicles with low fuel consumption.
One of the types that keeps popping up frequently in that list is the Honda Innova / ANF 125i engine.
It should put you solidly below 2.0 L/100km / above 115 MPG.
Of beter dan 1 op 50 , zoals jullie het in Nederland graag uitdrukken
If you keep the weight down, a 125cc shouldn't struggle too hard when the vehicle is really well streamlined.
I wouldn't rule out the 125cc.
See what's possible with a Honda 125i :
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1L/100km or 235 mpg
You might want to replace the heavy fiberglass with Zote foam
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