[BrianG]

It actually works VERY well. The 2d was supposed to be a 2.5d, but the box was marked wrong and I got the 2d instead. I didn't realize it until I ran it a few times and wondered why it was so darn fast. :)

I love the Quark for its smoothness and ability to run just about any motor equally well. Yeah, it has a couple of limitations, but am definitely willing to live with that for better written motor driver firmware.

Even when doing top speed runs up and down the street and heavy throttle starts (tires are getting worn), I still get about 45 minutes of runtime and only drained the batts to ~6Ah (8Ah cells). The motor is warm at about 100*F and the ESC and batteries are cooler. I would've thought they would be hot with such a low turn motor.

So, it's a "little" faster than I was planning. And to add to that, I'm trying out a 16T steel pinion (to test durability when using a solid mount with consistent mesh). I haven't run it since last weekend as I lost a wheel nut and need to replace it first.