Side-back mount motors?

[manneokoko]

Hi.
What do you think of the kind of motor you attach to the rear hub, like this: 24v 350w E Bike Mini Brush Hub Scooter Bicycle Cycling

To me it seems like a good motor for a bike that has internal hub gears, since this motor will use the gears of the bike.
What do you think?
And also, anybody know about this specific manufacturer, what brand and modell it is?
Any recommendation for similar motors?

 

[dogman dan]

Looks like a typical Currie motor. Like they have on the cheaper E zips, or is it I zips. I get the two zip models confused.

Well known as one of the best choices for a guy who wants an ebike on the absolutely cheapest budget. The actualy have very good torque for climing hills, but they are fairly slow and very noisy. But a great choice if speed is not needed and you need to squeeze the most range from cheap sla battery packs.

 

[dumbass]

Depending on what you want to do it could be an OK starter kit. But it is a bit strange. They say they supply you a battery charger but don't mention giving you a battery. Or did I just miss that?

As dogman pointed out it is a currie EZip style motor. These motors are manufactured by 100 different companies in different wattage from 200w to ???? (claimed). Most all are noisy but one thing I've found is when they are run counter clockwise as this one would be the noise level is much lower. Go figure! One thing you need to look at is can your bike handle 2 freewheels side by side. That is how they are making the chain connection. They are using a freewheel on the hub for the crank protection and a second freewheel for the motor which is also mounted on the hub.

350w isn't much power ether. And it is likely a 200w motor they are claiming to be 350w. But no one can say for sure till someone trys it out. In any case it will give you an assist but you should also consider what your gearing will be between the motor setup and your crank setup. A setup the requires one gear range for the motor and a different gear range for the crank really doesn't work well because ether you or the motor are being over worked. So if this becomes a problem you would need to change the freewheel for the crank or the crank crank sprocket to get both you and the motor happy most of the time.

There are a lot of kits out there simular to this one and you may want to keep looking a while. Not to say this isn't one to consider though. Just be sure it's the best you can get for the money (or a little more).
Bob

 

[dumbass]

aving no idea where your located so maybe that's why you choose this setup. Or it could be a cost factor. In any case you may want to consider on of these options as well. The first is a a twin motor setup (offers some good and bad things) of 450w each. You could start out with just one motor and add the second later on if needed or just save for a spare. The second is a 450w brushless single motor setup. Both of these setup use the crank chain for to drive. Therefore, you would still be using your hub gearing. The downside to both is they are 48v. Unless the twin setup is a shared 48v setup (series). And of course their both a lot more money.

http://www.ebay.com/itm/48V-900W-2-MOTORS-brushed-MID-DRIVE-ELECTRIC-MOTORIZED-E-BIKE-CONVERSION-KIT-/200722109114?pt=LH_DefaultDomain_0&hash=item2ebbf852ba

http://www.ebay.com/itm/48V-450W-BRUSHLESS-MID-ELECTRIC-MOTORIZED-E-BIKE-CONVERSION-KIT-NEW-CRANK-SET-/190694746581?pt=LH_DefaultDomain_0&hash=item2c664ae9d5

 

[Drunkskunk]

Its just a currie motor. nothing wrong with them, but for the same money, you can buy a much better system.

 

[spinningmagnets]

DrkAngel has some posts about upgrading these kits.

upgrade to 36V
http://endless-sphere.com/forums/viewtopic.php?f=3&t=40929
http://endless-sphere.com/forums/viewtopic.php?f=3&t=41237

$20 freewheel upgrade to get 20-MPH @ 24V
http://endless-sphere.com/forums/viewtopic.php?f=3&t=25726