So that rim problem here:
has gotten much worse, suddenly, on the ride to work today.
(pics to follow when it's light enough outside to get good pics; the ones by flash/etc don't seem to be very good).
Flash pics at night:
Daylight pics the next day:
Maybe halfway to work or so, suddenly the ibike slowed down and power usage nearly doubled, almost as if the tires had gone flat, but there was no squirelliness. I pulled over to see what might be wrong, and found the rear brake dragging...but not on the pad--on the arm, because the tire was bulging out where the rim is cracked.
Only way to fix this is to replace the rim; thankfully I have a spare, though I had originally intended that rim to go on the front of SB Cruiser, on a geared rear hub built into a custom-designed suspension "fork" built out of the rear end of a different bike. But seeing as I havent' gotten around to that yet, I'll have to put it off a bit longer until I can get another good rim to try out on it. (mgiht still do it with a bigger rim...but the smaller one would give better startup torque, which is all I want it for).
Anyway: For the rest of the ride, I had to undo the brake cable to let the arms pull to the sides away from the rim and tire, and remove the right brake pad, because as bulgy as the rim and tire are, it was rubbing on there at the angle it was at.
So far it's survived without getting any worse on the rest of the ride there or home, but I have to do something about it VERY soon as I can't predict if or when it will split enough to let the tire pop off the rim, or let the tube herniate out and blow out. That would suck, as I couldn't do anything about it other than just ride home on it as-is, which would be slow and not very safe, on what would amount to the bare rim (as the tire and tube would probably be destroyed pretty quickly).
If I had the Shinko SR241 moped tire on there, I don't think I'd be worreid about it, as the bead is a LOT thicker and probably wouldn't bend out to allow the rim to do what it is doing, and even with the split rim edge it would probably still contain teh tube just fine.
But all I have on there is the Maxxis Ringworm bicycle tire, so.... :/
I do have that spare rim, but not enough time to lace it, or to get the SB Cruiser ready to ride, by the time I have to leave for work tomorrow. So the present plan is to swap out the present damaged wheel with the Crystalyte HSR3548 motor in it for the similar wheel (but with shinko on it) and X5304 motor in it that's on the SB Cruiser's right rear.
Catch is, the bike is now setup for a rear motor and can't secure the front-sized x5304 in it's dropouts. The only way to mount it on there is to put it in part of a frame off another bike, squeezed to fit it, then clamp or weld that onto this bikes' frame under/inside the existing ones.
I might have to swap the cotnroller over too, as I don't remember if the hall sensors work, and I know the old Ecrazyman that's running the HSR3548 doesn't work sensorless. It's probably easier just to go ahead and swap over the controller anyway, since the phases are soldered on both the motors and controllers, IIRC.
This is a lot of stuff to get done in too short a time.
If I can't get it done for sure by the time I need to head off for work I'll have to get the orignal wheel/etc back on and working, broken rim or not.
Or dig out a regular BMX rear wheel, and use that.
So I guess what I'll have to do first is get that out and make it ready, just in case I can't do the other, and live iwth the much less acceleration of the front motor alone. :/