Dogman, my understanding is that there are two motors from BMC in this "generation" of motors. There is a direct drive version and one (evidently) is geared. To make things a bit more complex, they have identical cases. Perhaps hi-powercycles can elaborate. I presume he can, since the first motor that he sold on eBay as a "Black Lightning" was direct drive.dogman wrote:Very interesting. So that is a gear motor? I had gotten the impression that the 1000 watt was going to be a direct drive motor.
Do you plan on loaning any out for independent, non-bias reviewhi-powercycles wrote:Hello,
Heat build up is no problem for up to 3000W or so- more if you use 10g wires at the shaft. If you plan on loading 9000W like a certain member on this forum is using, I would definately go for the much larger crystalyte!!! We are going to have 2 versions of this motor, the first available in production is the geared motor, later on a gearless version will follow. The gearless version is going to take more work to fine tune to the specs needed... Have a great day everyone!
Dogman, it gets pretty hot here in the midwest USA as well. How is it riding on an e-bike in the heat, does the wind keep you relatively cool or do you sweat your balls off? Lets assume that you do no pedaling at all.dogman wrote:Heh Heh , bet I can melt one, in an unbiased test of course, the desert weather doesn't care who you are in June. I talk about heat because my commute home is 15 miles uphill, and when it's 105, that is a test for any motor. But in moderate weather, I see the heat being an issue when people take this motor to the mountains and ride up some pretty steep hills so they can do a DH ride back down. Seriously, if you ride most hub motors up a hill non stop for say, 45 minuites, it will get pretty dang hot! This was not such an issue when we were stuck with 30 minuite ride time batteries, but my ping will go for about an hour and a half. I would love to test one of these motors, but I don't have a battery that could hack it at this time.
It was a "prototype" black lightning Direct Drive model (a 2nd one of the two that was mentioned). A similar claim was made then too. It must be me as I can't reproduce those result... even with quite capable setup since my last test. I say send a free one to Dr. Bass for extreme testing - including 72v high amp torture test over 90 degree temp environmentsnowranger wrote:Sounds like you got a different motor from what's out there now.