Recent content by flyinbrick

The shaft key was in place, and it looks good. I programmed in a relatively slow ramp on CA3 so I never put too much torque on it. No debris and no loose magnets. With the clutch out, I was not able to duplicate the sound spinning by hand. The bearings seemed good. Amberwolf suggested possibly...

Well to be fair, Teklektic, we sorta ruled out spinning backwards in posts 3 and 4. However, Alan B brought up that it could happen during a ride, which is why I went back to my videos. Also, apparently, cannot upload videos here anymore, so I just learned how to post on Youtube: UPDATE: I...

luckily, i took a video with motor/clutch assembly removed from housing rotating with light throttle. It does seem to spin in reverse direction if I’m not mistaken. Hmm, will have to verify. Thanks.

The motor spins with throttle application. So it seems even though the clutch seems fine from off-motor inspection, clutch failure is the logical conclusion. Hopefully, a new clutch will be the fix. Thank you all for your help!

The ring gear seemed stable against the hub housing. I could not move it with my hand. Now I'm really stumped.

Did not check the ring gear. Will do when I get home today and update. Thanks.

good theory on going in reverse. But, 1. This failure happened in the middle of a ride 2. When I flip the bike over, with throttle application, the wheel moves ever so slightly in the forward direction with a clicking sound coming from the motor However I suppose there is the unlikely...

Hi, My BMC motor failed suddenly the other day on my commute. The motor is a BMC 600W. Best I can tell, it is a v2 speed version. I got it used, then put about 2k miles on it at about 1500W - gradual starts with CA3 programming. Symptom: when I throttle, I hear the motor spinning, but no...

Following ... This happens to me too. BMC v2S motor, 12-fet Grinfineon, 48V Luna shark. One time, I hit a bump and the system went dead. It turned out the BMS on battery needed to be "jump started." Best I can tell, this was caused by battery terminal intermittent. What caused that? I suspect...

Against my better judgement, I got too throttle happy this morning. I full throttled for about 6 miles, at which point I checked the case temp was too hot to touch (I don't have a temp gauge). The problem I am having is when I pedal and power comes on, it does not turn off when I stop pedaling...

I have been thinking about doing this. I have a 48V 11.6AH dolphin pack and am considering building a 13S1P pack for a bit more capacity. From what I have gathered from reading, and the short answer is yes, you can do it. There are some BUTs, however: 1. The two batteries should be the same...

OK, I'll take a stab at this. Those more knowledgeable than I am will want to chime in here You will need a screw-on freewheel (as opposed to a freehub such as the one that came with your bike). You can buy one from here: http://www.ebikes.ca/shop/ebike-parts/freewheels.html According to...

They shipped a BBS02 to my paypal address. I got it in 6 days to California.

I gear mine only for top speed commuting. 52t on a 26er, 48t on a 29er. IIRC, 28-30 rpm achieved at around 85rpm cadence on a 11t cog. You can calculate this on Sheldon Browns gear calculator. The BBS02 gets you to around 28 mph (flat no wind) in highest level pedelec mode with a 13S 48v battery.

In general, your best bet would be to post a bike you are interested in and ask if that is a good candidate. Belt drive: the problem here is that the BBS02 has a unique front chainring mount and I am not aware of any compatible belt drive pulleys. Let me know if you find one. Any bike that...