RogueGeek

Interestingly, last night I also had the chance to ride a '22 and '23 Race back to back! Were we at the same practice session near Oregon City?! I very briefly rode both bikes in blue, with tick over enabled, and agree with your assessment. Additionally I felt that there was more virtual flywheel in both spin up and spin down of the motor. Overall I felt it was a good improvement, and would have to ride the '23 a bunch more to see if it would get me past the traction management issues I have with the '22 model. Somewhat related, I recently watched this Stark Varg video, where they describe how power, (virtual) engine braking, (virtual) flywheel weight, and traction control can all be controlled by the owner. I would like to openly invite Electric Motion and Mecatecno to take the same approach with their electric trials bikes by enabling owners to control these 4 capabilities in some manner.

Good thoughts, thanks! It is certainly in loose conditions where I have trouble. The bike will lose traction ever so slightly, be it on roots or rocks, and the rear wheel will accelerate quickly, very sharply. The wheel spins and all traction is lost. On the petrol bike, the inertial mass of the flywheel keeps the speed of the rear wheel from accelerating too quickly when traction is lost, and find that I have a much easier time maintaining traction in those marginal situations. While I have traction, the EPure is incredibly smooth and forgiving, and a blast to ride. The green map does seem to help a bit, but I find that it does not have enough grunt for other situations, so I have been using the blue map. Still hoping to hear from someone who's had a chance to directly compare the '22 with the '23, to see if there's a notable difference in how the bike performs under the conditions we've been discussing. Thanks!

Have the optional flywheel on my bike - they come as standard equipment with the Race. It still spins up and down crazy fast.

Has anyone ridden the new '23 model back to back with a '22? There's some indication that the maps are significantly improved in terms of how fast the electric motor spins up and spins down. It seems like it may be slower, like they added some virtual rotational mass to the motor via the controller. This review (at minute 11:00) shows what appears to be a slower rev up and spin down of the electric motor, much like what I experience on my Gas Gas: I'm interested what the '23 is like relative to the '22, as I have struggled on my '22 Race with maintaining traction in loose conditions due the motor spinning up and down much more quickly as compared to my GG. Any info, experience, or insights regarding the difference would be very appreciated. Thanks!

In general you are correct. An RC filter will delay the throttle input by the time constant determined by the RC filter. It will also soften, or make more gradual, the given throttle input. An instant change from say 1 volt to 2 volts on the throttle, will take 5 RC time constants to be fully realized on output of the filter. It's also behaves the same for when you close the throttle. Google around on how RC filters work and you will find a ton of info. Yes, a filter could be designed for 240 hertz. However, that seems very fast for a twitch, and would have a period of only about 2.2 milliseconds. Really, when your buddy gets the bike, I'd recommend that he ride the bike a lot using the green map, which is very smooth and gentle, and his twitch may not cause any problems.

You could experiment with putting an RC low pass filter (resistor-capacitor) in line with the output of the throttle. The throttle is a simple potentiometer. A 1k ohm resister in series with the output, or tap of the throttle, followed by a 33 micro-farad capacitor tied to the negative side of the power that goes to the throttle, really softened the throttle response for me, for both opening and closing the throttle. I will be experimenting with a smaller resistor, say 680 ohms, and a larger cap, as the controller does present some load to the circuit, and adding the resistor will pull down the max throttle level a little bit - not that I ever need max throttle on that beast! The power to the throttle is 5v, and I've been using 16v polarized tantalum capacitors. If you use these, be sure to get the polarity correct or they will fail. This mod will likely void the warrantee, so proceed at your own risk. Hope this helps! Now, if I could only figure out how to implement an artificial flywheel, or motor based traction control - even with the flywheel weight on the Race model, the motor spins up and down like lightening, which has plagued me in loose rock.

Thanks!

Has anyone tried putting a 250 flywheel on the newer 200? And noted the weight difference? Thanks!