Recent content by Dracis

The new sprocket definitely helped with acceleration, having problems getting significantly above 22mph though that's probably in part because I don't have much room for testing right now, but at least I wont get hit from behind when accelerating from a stop light. John in CR I keep hearing...

I got a 65t sprocket from http://shop.pbisprockets.com, i'l be testing as soon as i have a chain long enough. My next step will be improving my battery though i hope the gear reduction is enough to at least make it useful in the city till i can get a better battery.

Thanks for the info both of you John I am looking at a 60t rear sprocket right now which will give me a 5:1 ratio, but could you tell me if i can start uphill from a stop with this, the overpass in question has stop lights on the slope up on both sides and they are at a pretty steep section of...

I know the battery will do 50A max continuous and 100A peak but I don't know how to check C rating, its a 16cell battery pack and the info on C rating from the battery maker is "Lifecycle of single cell: >85% capacity after 1500 cycles, > 70% capacity after 3000 cycles. (<1C discharge rate and...

I'm having some trouble with a new build, I just finished putting together a motorcycle using an HPM5000B 48v motor, a VEC300-48v controller, a 48V-50AH LIFEPO4 battery pack and standard 48v twist throttle. It works, but i'm having problems with acceleration. It takes about 6 seconds to get up...

I was already planning on that dogman dan, but I first have to determine where i'm going to get it from, in particular whether http://bestqualitymotorsports.vstoresite.com/ is legitimate or too big a risk.

Hillhater, ya, making sure it can be registered as street legal and will arrive in tact (at least so far as the frame, forks, and wheels which i can't repair and are either expensive or impossible to replace) are my primary concerns, though the bike is the same model as other legitimate sites...

I'm looking at getting a cheep kit motorcycle to convert to electric and have been looking at the "Bubba 250cc Chopper Motorcycle MC-DF250RTB Pro Street Chopper" as a starter, lots of pics available for the MC-DF250RTB model that look like a great bobber chopper style and its narrow enough to...

Ya, amberwolf, i can see that could be a problem. You might be able to treat it as a sensorless model to get around that, but labeling the wires with tags for the y,g,b colors and testing might let you find a pattern, even if they are all green without the labels. Here, i'l add an attachment...

Since I found the correct phase and hall wiring combo and everything seems to be working. In case anyone needs the wiring combo, presuming the manufacturers aren't idiots and they don't randomly have different motors with different phase and hall wires. X-Tream E-Bike XB-504 stock 48v 500w...

thanks gwhy, Lyen had the same idea and sent me a sheet to work from during my testing, found the right set and all motor and throttle issues fixed, now if i can just figure out which wires are used for the e-brake cutoff since the only wires not in use on the controller end are the blue wire...

I'm running into a problem. I recently got a XB-504 model e-bike and found it did not climb hills very well. I tried the shunt bypass mod and fried my controller so got a 12 FET 3077 Mark II Extreme Modder LYEN Edition Controller (with HALL sensor) as a replacement. I had already done a lot of...