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  1. J

    500W Direct Drive vs Mac 500/1000w (Em3ev) + Other Questions

    Hi. I thought I had decided on a 500w direct drive kit from Em3ev along with the 50V Samsung battery from them. But I started looking at the Mac motor and Ping batteries, which means I have a lot more questions. Firstly. How does the Mac motor compare to the Direct Drive one in terms of...
  2. J

    Is this a good hub motor kit choice? (50v Samsung battery)

    Hi everyone. As the title says, I'm really just wanting to know if I am making the right choice with the eBike kit I am going to buy. I used the eBikes.ca simulator and that said I would get 15 miles range and a top speed of 28.7mph. My first question is, is the ebikes.ca simulator fairly...
  3. J

    Cheapest 30+ MPH Hub Motor Build?

    Hello, I want to buy a hub motor kit for my mountain bike which will allow me to go atl east 30MPH. I wouldn't need more than 15 miles range and the bike wouldn't really need a lot of torque as I will mainly be using it on normal roads and pedaling quite a lot. What would be the cheapest...
  4. J

    Can I upgrade my controller for more power & less range

    Hi, I have a 500w Hub motor kit from em3ev, I got the motor with high torque and less speed, with this kit I got a 36v 15Ah LifePO4 battery from PingBatteries. The kit can do 30 miles on one charge but I never do more than 10-12 without charging it so I am wondering, can I get a new controller...
  5. J

    Threaded Freewheel supplier in the UK?

    Does anyone know where I can get a 9 speed threaded freewheel in the UK? I have tried local bike shops and nobody seems to know where I can get one.
  6. J

    Best way to charge and use batteries?

    Hi, I have a Ping 36V 15Ah battery for my ebike. Is it better to charge the battery after each use or let it completely dis charge and then charge it? Thanks
  7. J

    Has this eBike kit blown? HELP

    I've set up the eBike kit and battery in my bike today, when I connected the the wires there was a popping noise and the kit isn't working at all.
  8. J

    Do I need to fit a fuse with this ebike kit?

    Hi, I got the 500W DD Hub motor kit from EM3EV and a 36V 15Ah LifePO4 Battery from Ping. I need to know, should I fit and inline fuse carrier with this kit, if yes, where should it go? Also I need to extend the charging wires and the wires that go to the motor from the battery, does anyone know...
  9. J

    Which cassette for Trek Ebike conversion

    Hi, I have a Trek EX 5.5 mountain bike and I have ordered the 500W em3ev rear wheel hub motor kit. My Trek has a 9 speed cassette on the back that is held on with a nut, it does not screw on. I need to know which cassette I will need to get for it to work on the hub motor wheel and do they sell...
  10. J

    2 24V batteries same as 1 36V?

    Hi, I asked for advice the other day on which eBike kit and battery to get, I got good advice and decided to go with em3ev 500W and 36V 20Ah Ping Battery, everything has been ordered. Only thing now is I have mocked up the battery size from wood and it's very big and wont go where I thought it...
  11. J

    What range and speed will I get with this kit?

    Hi everyone. I just ordered the em3ev 500W DD Kit (http://em3ev.com/store/index.php?route=product/product&path=36&product_id=54) With these options: Motor speed: Rear 275RPM, Controller type: 9 FET 30Amp (37V-72V) and Wheel type: 26" Alex DM26 Disc. To go with this kit I ordered a 36V 20AH v2.5...
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