Recent content by Beagle123

You can buy brushed controllers here: tncscooters.com

WIth brushed motors, if you switch the leads, the motor will run in reverse. Is it possible that the wires were switched so the motors were running against each other? (Longshot guess.) If you run two controllers, you will need to use smaller controllers or it will make the problem worse...

When your controller says 900w, that is the rating for continuous use. Usually a controller can output maybe double the power of its rating. The best way to understand what your controller's maximum output is to look at its maximum amps. It should say on the controller the maximum amps. For...

Hi: I think the best way to do it is simply putting a resistor from the positive leg of the throttle to the signal leg of the throttle. You could then put a push-button on the handlebars to make the connection happen. Push-button...

Hi Team: I think I found the solution: http://www.chainreactioncycles.com/Models.aspx?ModelID=36416 I measured the diameter of the bottom bracket, and its about 1 3/8 inches (35mm). This spacer is made by a company called "Hope." I guess they have that name because you have to hope this...

Thanks for the input, you guys. My major challenge is finding a design that I can build quickly and cheaply to sell to others. I can buy these sprockets for $22.00 at a distributor. Doing things like buying a new bottom bracket will add more cost that I will have to pass on to the buyer...

Hi: I'm trying to install a 52t sprocket on my bike, but the teeth of the sprocket are rubbing against the frame. In this picture, you can see that if I tighten the retaining bolt, the teeth of the sprocket will contact the white bar on the frame. Is there some kind of spacer I can use? I'm...

Thanks chvidgov.bc.ca: I'm learning to trust the labels on these controllers. I agree this is a problem. I've since switched to a 17.5 amp controller: http://www.elifebike.com/peng/iview.asp?KeyID=dtpic-2012-7Q-P96D.9KNYX Do you think 17.5 amps is too much for a typical lifepo4 10ah...

Hi dev: As usual, you're right again. It wasn't the battery. I hooked-up a watt meter, and tested two different batteries: Battery1: 15s 10ah lifepo4 @ 49v Battery2: 16s 10ah lifep04 @52v I tried giving it a light load by slowly accelerating up a 4% hill: According to the watt meter here...

Hi Dev8: As usual, you're exactly right. I was thinking about bending the plate to eliminate the rattle, but I didn't know if it would work. I may just try denting the edges to make it tight. Its nice to know that I'm not just wrecking my new battery. I checked the white speed-control wires...

Hi Y'all: Here's what's happening. I mounted the battery, and took it for a test ride. It is very slow. On flat ground, I get exactly 16 mph. The good news is that I get 15mph up a 4% hill, This is a BPM Code 14 motor. Shouldn't it be faster? I'm using a battery that was sold to me as...

Good advise! Where did you guys get those nice looking "old-school" torque arms? I like the ones in the pictures--digman's and neptronix. Please let me know where to find them. Eric

AC is better for men, DC is better for women. Everyone knows that.

Hi dev: Thanks for the help: I was under the impression that it could handle 17 amps at 48v. Now I'm leaning towards the same setup with the BPM. how does that sound? That's exactly what I want. My gut feeling is telling me that taking a slow wind geared motor and running it at 48v with...

That's exactly right. I can't believe you knew that! :) Those torque arms look excellent. The setup you have looks very good, but I might separate the two pieces, and only use the part that goes over the axle. I'd use the hole in it to bolt directly to the frame. On my bike I have a nice...