View Full Version : Figuring it out

01-10-2010, 09:27 AM
Does anyone know of a article or website that breaks down in one place all the info about choosing an electric motor set up..such as 24 vs 36 vs 48 pros/cons . I am trying to put together a shopping list for my project, and after going through some previous posts and threads I still am unsure what I need for power, batteries ,controller etc.... Here are the specifics Warrior frame modified 225/45/15 Hossier rear tire( just won on e-bay) on 10.5x15 rim. about 8 inches of horizontal length added to frame between seat support and center boom 14.5 x 7 inch fronts. made from 14 ga. I want to be able to do some cruising around with My little girl , and use it to commute to the park and ride about 2 miles away. and go on some longer cruises with the missus.Any suggestions on an affordable whole set up ???


Radical Brad
01-10-2010, 12:13 PM
This is a great source of info...



01-10-2010, 02:08 PM
Thanks Brad, I poked around there,joined, and asked a couple questions...Great site . Any opinions ...anyone.... on the selection of kits here http://www.cyclone-tw.com/order-M.htm


ken will
01-11-2010, 02:22 PM
I don't know about these kits but 360watts is a good amount.
An amateur bike rider in good condition can put out about 250 watts for a while and maybe 500 watts for a short sprint.

The hub motor on the trike I tow the dog trailer with can do 15 mph on level ground with no pedaling from me. It is a brush-less motor 360 watts @ 36 volts.
http://public.blu.livefilestore.com/y1pwPqnNz21VG8P1nF1XpgMvQyP2CsgALk2IP8KtDd2bpuT9qp 2gkEw_EiOcd_pOyaN_c84kho8IX4Sew8Y6FW4Hw/Sassy%20swim%2001.JPG

The 10 AmpHour SLA (sealed lead acid) batteries don't last long if I draw a constant 10 amps from them. The 10 AmpHour rating is misleading, it can put out .5 amps for 20 hours, which mathamaticaly is 10 amp hours, but lead acid batteries have a high internal resistance so if you draw a lot of amps the battery becomes very inefficent.

I do push the batteries going uphill and accelerating across road crossings, but only for a short time. The thumb throttle I use has "cruise control" ( it sticks a little ) which I set at about 100 watts which is just enough to go a little faster and/or make it a little easier to peddle.

I also have a 15 AH 48 volt LiPo battery pack which makes this motor screeeem!

01-11-2010, 07:32 PM
Check you email. I sent some info on the motor you may go with. BTW, I have to of those motors, a 450 36v, and a 450w 24v. The 24v running at 36v is a lot stronger than the 36v running at either 36v or 48v. At full speed, the 24v motor @ 36v draws 25a, and uphill up to 30a. At full speed, the 36v motor @ 48v draws about 15a. Less wattage and speed, but the battery pack gets more mileage.

07-07-2010, 11:11 AM
Man! What a GREAT SITE! I'm a newbie to all this........ Can't believe it has it all on one site. Thanks for posting this link!:builder2:

Radical Brad
07-07-2010, 12:09 PM
I agree! And if you see Justin over there tell him Hello from me and next time he rides across Canada, stop by here again!