Looking for 24v kit

rocksalt27

rocksalt27

Member
I have a 26 inch bike with china girl. I want to add a front hub motor. I would like to get a motor only and lace it into the wheel I have. I would like to get a 24 volt kit so I only need two SLAs. Are there any kits out there that come with spokes?

Also, it is necessary to have a control module?
 
The hill topper is a little out of my price range. If I go with a cheaper one like a gigabyke or golden motor, can I put 24 volts through a 36 volt system? Will it still be enough power? I only weigh 125 lbs. Also I'm just looking for some low-end, not high speed.
 
you could just get one that has the same size wheel as yours and swap it onto your rim or tell them you don't need the rim you might save 10 bucks.
 
That's true-I may as well get a wheel kit then. It looks like both of those sites have a build-your-own option. Thanks guys.
 
OK, those guys want another $150 or so just for shipping from overseas. Are there any that are in the US? I can't find much on eBay as far a 24 volt systems. Again, can I put 24 volts into a 36 volt system? The 36 volt systems seem a lot more common.
 
I was surprised how hard it is to find a 24v system on EBay, too. The Hill Topper hub motor has gear reduction, which increases the price.
My 24v kit is an out of production Currie Electro-drive, which only works on the rear wheel.
 
Good find, K11. GNG makes decent motors. By the time you buy a pair of SLA batteries and have a shop build the front wheel, you have spent around $390 with that kit. Being upgradable to 36v is a big plus.
 
Machine gun - a guy on the other forum used these lithium boost batteries from Wallyworld for light weight and they gave him a range of around 4 miles. (around $35 for each 12v battery). If you plan to use electric power only occasionally on your hybrid motorbike, these may work well for you. I am thinking about buying four of them for my 24v bike and wiring pairs in parallel for more range.
k2-_29910919-19ae-4e67-b920-57e93e170a46.v3.jpg-9d7568fc5d0537b33509ceb583e992c8c60e0e03-optim-300x300.jpg

http://www.walmart.com/ip/The-Evers...19954852333668803894&affillinktype=10&veh=aff
 
MachineGun, are you getting the electric primarily to start your 2-stroke without pedaling?
If so 24V will be ok.
If you plan on doing any real riding on electric only you will be sorely disappointed with the power and range, it is not just pulling you, it is pulling the weight and drag of your 2-stroke system.
 
Wheel, I actually have two of those already, I'll probably get a third. The thing is, they're only 11 volt batteries. Not sure how that effects things, but it sounds like someone had some success with them.

KC, yes, I only plan on using the electric drive occasionally.

So here's what I'm thinking:

36 volt motor
24 volt battery
24 volt controller

What do you all think?
 
I would go with a 24v motor. 24v motors are designed to handle more amps than a 36 v motor. You could burn the 36v motor up running at a lower voltage because lower voltage = higher amps. You would be better off running a 24v motor at 36v.
 
Last edited:
Thank you Kev-that's the answer I was looking for. I found a 36 volt system that I like on Amazon. It's by Generic. Is that a good company? Or should I go with a Gigabyke from Bikeberry?
 
that bikeberry kit looks ok to me. that might be pretty good if they actually have it in stock and don't jerk you around.
 
I have two 24v geared hub bikes. I found the kits on ebay from a seller Ebikling. They were very nice kits and less than $200. That was some time ago don't know if they are still available.

I always over volt my builds. I run 4s Lipos in different combinations. Mostly I run 8S but some times I will throw in another brick for 12s for some speed/fun. This is all on the 24v controller. It has 63v caps. Gotta be hard on the mofsets but I have yet to blow a controller. At $20 who cares any way.

On the other side of the spectrum I run a 48v hub on 8s(33.6v off the charger). This is on a purpose built light bike that I only wanted to carry 2) 4s bricks most of the time. I built it from what I had laying around. A 500w 48v hub and a 20amp 36v controller. Works well tops around 20mph and has a 10mi range if I want to pull the cells down to around 3.3v, I normally stop around 3.5v and 7/8mi.

The short of these ramblings is that with in reason you can pretty much run any combos of voltages with in the controllers caps range. You do have to monitor battery voltage to keep from killing the pack as the LVC on the controllers will be all wrong for the modded voltage. I do that with a simple digital meter that also has an alarm that can be set a a given voltage. These plug into the packs balance connector. Too easy.
 
You must log in or register to reply here.
Back
Top