THANKS,
I insulated certain parts with rubber, because the slightest vibration can be heard unlike a gasoline version.
I also removed all the clips from the track, because the snapping of the clips on the sprockets was noisy. So it's almost total silence. With this motor, which is closed in the chassis, we hardly notice the whistling of the engine which increases in frequency with the RPM. On my previous electric vehicle, this whistling sound gave the impression of speed, since the RPM always increases with speed, whereas on a gasoline vehicle with CVT, the RPM increases very little with speed.
This one has a small battery, comparable to the 'competition' of small electric snow bikes. Which gives 1 hour continuously. Lion with probably the best 21700 cells (less than half the weight of LiPoFe)
it is between the weight of the Tracto 224 and the Tracto 306, plus the weight is lower on chassis, so really no problem on that side. Probably as a base there will be a battery with more reserve than this one. with this battery. But costs increase very quickly with batteries. The mini range extender that we are experimenting with (40cc 4-stroke ultra silent) allows us to increase the autonomy, and to recharge completely if we are not riding. It does not provide the continuous power necessary to power the electric motor with a maximum power of 7500watt (13500watt peak).
This requires continuous energy of 5000 watts to travel at 40 km/h on such a light vehicle. The continuous energy required with a track and snow is nothing like that of a small motorcycle or bicycle.
The energy required increases exponentially with speed for a snowmobile. If it were a trail vehicle with no speed limit, the continuous energy on compact snow at 100km/h is around 34,000watt.!!! (drains a battery quickly)
At least for the Traktibike to perform the majority of utility tasks and to have fun in the woods, a long autonomy is not essential.
otherwise there are the gasoline versions, whose low consumption will not compensate for the extra cost of the electric version. It is more for the electrical experience (silence, torque, no need to stop and start the engine each time it stops) that it may be worth it.