Work commute went flawlessly, although I have to say I got used to the easy speed of the 9C and no pedalling on DGA,
so the little Fusin on the heavier CB2 requires lots of pedalling to even approach the speed and torque of the 9C on DGA. Especially since I have a much smaller battery on CB2, at only 36V 9Ah vs 48V 13Ah. While if I were to set the Fusin to High, I could more easily approach DGA's capabilities, I would drain the pack so fast that I would not make it back home from work wihtout constant cutouts from controller LVC.
I figure my trip today I was pedalling about three or four times as much/hard as I would on DGA if I were trying to conserve power there for a longer run, but it is a lot easier to do this on CB2 because the seating position is very comfy. The only issue I have is that I need to move the seat forward about an inch and a half, probably because of the longer cranks, as I have trouble staying in the correct seat position while pedalling (didn't have that problem before with the shorter cranks).
Numbers from hot-off the charger run to work, then back home after 7.5 hours of sitting, total of 5.1 miles. Readings using WU1:
To work, 2.255 miles, 14.1MPH avg, 18.4MPH max, 9 minutes 35 seconds. Used Medium for the entire trip:
To home, 2.897 miles, 12.055MPH avg, 18.3MPH max, 14 minutes 20 seconds. Used Medium only for the short portions where I must be in traffic or crossing it, and Low for the rest:
It's interesting to note that even though CB2 weighs significantly more than DGA, and I wasnt' going that much slower than I would have on DGA (probably about 2-3MPH), the Wh/mile figures are less than half for CB2 than DGA.
A lot of that is my pedalling input, I'm sure, because the DGA readings I'm thinking of are when I didn't pedal at all.
Some of it is wind resistance, since not only is CB2 lower, but I am semi-reclined instead of fully upright.
Some of it is that the Fusin is geared, so able to run closer to it's efficient zone more of the time, I suspect.
Some probably has to do with the way the Fusin controller does it's Lo-Med-Hi thing, which does not seem to be a straight current or speed limit, but some combination of both.
Some simply because I am running at a lower voltage (36V vs 48V).
Some because the Fusin is a lower-power motor than the 9C.
Now if I dig back in the DGA thread to when this same motor, wheel, and battery was on it, I find that somewhere around 9Wh/mile is what DGA got with this same motor.
Digging around a bit more, I find that the 9C with the same 36V 9Ah battery and with the 36V 13Ah battery got around 18Wh/mile, for not that much greater speeds (and with pedalling like i did with teh Fusin on DGA).
So the Fusin is definitely more efficient than the 9C, either because of hte internal planetary or because of the way it's controller works.
In other thoughts, I was considering a disc for the rear, but while digging for stuff and taking pics for the post above, I found and remembered that two of the 3speed hubs Spinningmagnets sent me, the ones by Sachs, also have a coaster-style drum brake in them.
Now that made me ponder a bit. It's a little larger diameter flanges than the front disc hub I had tried to lace into a 24" wheel for CB2's front a while back. That means that I could use those spokes that were too short for the disc hub for it, most likely, if I can find another 24" rim to put it in (all I have left that's intact and not bent or rusted or junk is the one that is actually on CB2's rear wheel now, and since it'sa working wheel with cassette Id' like to leave it alone as a spare).
Then I'd have a rear brake, *and* get to test out if the 3-speed hubs really are enough gears for an assisted bike, or if I really need more than that. I know that with the original CB2 drivetrain thru the gears, I hardly ever used more than 2 or 3 gears, shifting thru most of the others so quick they might as well not have been there.
The other item in that pic is the clothesline pulley that I might have to use to tension the chain and guide it around some of the bottom frame if I use the hub, unless I just leave the derailer on there fixed into one position using the limit screws.
I think I ought to also put CB2's horn back on, taken off some time back for reasons I've forgotten.
One thing that didn't go flawlessly was my integration into traffic; since CB2 is shorter and is not brightly painted, and only really gives the motorcycle impression at night (since I am having to pedal, in the daytime you can see that easily), several people kept going around me to the left WHILE I WAS TRYING TO MAKE A LEFT TURN FROM THE LEFT LANE.
That's just stupid, and makes no sense, since they weren't turning left, and in fact a few turned right just a couple hundred feet down the road in various places. This happened mostly around Metrocenter, especially as I was on 29th Ave exiting Metrocenter into the parking lot of the south end's shopping area. What I think happened there is that the others that passed me on the left (crossing over onto the wrong side of the road to do it!) were following one impatient moron.
That moron was well over a dozen car lengths behind me, and I was already about to enter the left turn lane. If he had continued at his normal speed, I would have already begun actually turning left from the left turn lane before he even began to pass me in his normal lane. Instead, he decided to speed up to around 60MPH (going well over twice as fast as any other traffic on the road, engine roaring very loudly), and then suddenly go LEFT to get around me, even though by the time he reached me I was completely in the left turn lane, and he had his entire normal lane to simply continue straight ahead. He had zero reason to do what he did, except to show off one reason for him to not have a license or be on the road aiming tons of steel at people.
If there had been any oncoming traffic in the other lane he crossed over into, it would have been a helluva mess, especially since several people followed right behind him, doing exactly the same thing he did, for even less reason than he had, AFAICT. Just following the leader, I guess.
A city bus was not far behind them and was honking his big horns, probably trying to get them to stop?
I just had to sit there in the left turn lane waiting for the morons to stop passing me on the left on the wrong side of the road at freeway speeds. I forget how many, two or three others. By the time they passed, traffic was oncoming in the lanes I needed to cross, so I had to wait several minutes before it stopped and I could make my turn (I would actually have been nearly home by then if this had not happened).
It happened three more times with just a single car doing it elsewhere--once before entering metrocenter when i was trying to get to the left turn lane on Peoria, and was already mostly in the last lane on the left when the guy in the right hand lane (two over from me!) suddenly gunned it and went around left of me, forcing me back into the middle lane and missing the left turn I needed to make.
The second was on Dunlap, exactly the same way.
The third was on 29th ave again, south of metrocenter, nearly home, on the undivided/unmarked 29th ave; I was going to makea left turn at the 4-way stop at Butler and go to the thrift store, but this moron didnt' even slow down for the stop, but actually gunned it and sped up, and again went around me on the left, but this time I was actually already making my turn and he very nearly hit me--if I was not always watching in my rear view mirror, he would have, because I would not have known to hit my brakes just then.