Mike,
Wrong video??? Are you $hitting me? As I posted before, the 1/4 mile mark is over 20m before that first green town/distance road sign, so just after I pass the first car, the white one, I hit the 1/4 mile. That's plain to see from the video. You probably haven't been in any vehicle with that kind of acceleration...and I was gradual with the throttle early and have it set to a fairly slow throttle voltage ramp up anyway, not to mention my soft phase current settings. Don't forget that at the time of that video, the bike came in at 137lbs and I weighed 265lbs.
You can't tell much regarding the top speed from the video, because the peak was only an instant, and it occurred when there was nothing around to help give a feel of relative speed. The next time will be very different. My mount is solid, so no modding the video for shaking, and I'm going to hold the throttle at WOT for quite a while, so we'll have plenty of relative speed references.
Merlin,
The distance reported by the CA is the same whether fast or slow, and I did double check it later with the GPS and came within 2m as I posted earlier, so there's no wheel spin. Sure under hard acceleration and even slightly uneven ground, I lose a bit of traction and hear the rear tire chirp. It happens most rides leaving one stoplight in particular, but you're not going to convince me that my 400lb load is leaving the ground on that smooth concrete highway.
Of course I don't sit upright for speed runs. That would make a 15-20mph difference. My chin goes just past the bars, causing my helmet to be like a small front fairing. My torso is pretty much horizontal. Pedals are horizontal, and I try to get the bottoms of my feet horizontal too. That puts my legs fairly crouched up (saddle to BB is too short for pedaling. I would have to raise the saddle to set up for proper pedaling.). I also try to remember to squeeze my knees to the battery pack to minimize the overall width. I think it's a pretty good position, and obviously my beached whale shape isn't hurting aerodynamics much.
BTW, I've used the Kreuzotter calculator for years. Go punch in a 400lb bike and rider load and look at 50mph up a 20% grade. While the 10kw+ required at the wheel seems impressive, the impressive part is how quickly the bike accelerates on that solid 20% grade after slowing down enough for curves that I get regen recovery braking for curves. I still need some brake upgrades for video proof. The only time I made the climb, which is several km of 20%+ grade, I had to walk back down, because even with 2 controllers regen braking, I didn't have enough mechanical braking to ride down safely.
