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  1. bdteakle

    Rewinding Bafangs?

    I'm looking for advice on rewinding Bafang 250w hub motors. For a few years I've been assembling ebikes for neighbours, family members and myself, riding the steep roads of Mount Glorious and Mount Nebo. The long steep climbs are hard on motors, so I now have quite a few burnt out motors I'm...
  2. bdteakle

    Where to get 20", 200-250w front hub motors?

    To update you all on my experiences with greenbikekit.com: I recently made a second order from them, a battery, charger, spokes, spare BMS/PCM and anderson plugs. Prices were good (similar to BMSBattery.com) but communication was good too. I specified XLR connectors on the battery and charger...
  3. bdteakle

    Where to get 20", 200-250w front hub motors?

    To finish off the story: after my postings above I was contacted by an ex-BMSBattery.com employee who works for a new Chinese online supplier: www.greenbikekit.com , saying that she had heard I was looking for 20" Bafang motors. I corresponded and arranged to buy a special order of 6 20" Bafang...
  4. bdteakle

    Where to get 20", 200-250w front hub motors?

    Thanks D8veh, I use 36V LiFePO4 batteries from BMSBattery so this could work well. What's the peak current draw on your Dahon? Do you reckon this would work well with a 36V 250w approx 16A controller such as BMSBattery KU63? Bruce.
  5. bdteakle

    Where to get 20", 200-250w front hub motors?

    I'm trying to get 200 w to 250w front hub motors for 20" wheels, for road-legal (more or less...) bikes I've been making. After making quite a few successful bikes my usual sources seem to have dried up. I really prefer the Bafang/8Fun motors. Really good quality units. I used to be able to...
  6. bdteakle

    Considering E-Bike project Hub motor or Drive Motor?

    I agree it would be more interesting (for everyone), and potentially more efficient to make something more original and custom working thru the gears. However I think your first idea was really good too. I use a rear Alfine hub, and front Bafang hub motor on my main e-bike. It's so reliable...
  7. bdteakle

    Bafang 8Fun SWXK5

    Thanks for the note Outside. Your bike is looking good. I imagine the 203mm disc will be good for your mountainous riding. I live in (much smaller) mountains myself and have recently switched to using disc brakes after wearing out rims and overheating tyres. The long descents still turn...
  8. bdteakle

    Bafang 8Fun SWXK5

    Thanks for the review Outside, very interesting. Do the different flange diameters require different spoke lengths on each side? I've had the same problem with the Bafang SWXK and disc brakes. With normal spoking there isn't enough room for the caliper to mount a 180mm disc. I've just...
  9. bdteakle

    Let's talk about brakes

    I've had some experience adding disk brakes to bikes without original mounts. We live in steep mountain country, and our house is at the end of a steep 600m dirt road, which wears out rims quickly. The main road off the mountain has a long, steep descent which risks blowing tyres off from rim...
  10. bdteakle

    BMSBattery Bafang hub - the right controller?

    Thanks Russell for your excellent description of spoking your hubs. I'll let you know how I go. Marshy asked about fitting a torque arm to the Bafang SWXK. Here are some pics of the axle: The axle has flats at the very base, but not along its length, and is approx 9.4mm in diameter. A...
  11. bdteakle

    BMSBattery Bafang hub - the right controller?

    John floatingdog asked for a photo of the controller insides. I'm sorry I haven't had time to do the necessary dismantling and take a pic. I did notice with interest that the controller pictured in the below thread looks very much like my new unbranded controller from BMSBattery...
  12. bdteakle

    Controller overheat - advice please

    Thanks Russell, it's great to have some real information about the Phylion battery. It appears that 2C is within the capabilities of the battery, but that it will deliver reduced Ah capacity, and faster V drop at 2C than .5C or 1C. Presumably 1.5C will produce a curve in between 1C and 2C, but...
  13. bdteakle

    Controller overheat - advice please

    I never took the battery case off, so never checked individual cells. I didn't want warranty trouble by messing around with it. I also didn't measure charge voltage. I presumed the charger and BMS were regulating properly when the green light was coming on after a charging period. I never...
  14. bdteakle

    BMSBattery Bafang hub - the right controller?

    The Bafang SWXK hub weighs 2.85kg. Outside diameter is 134mm. I haven't measured very carefully, but the flanges appears to be symmetrical on the axle - i.e. I don't think it will need offset spoking for the disk brake mount. Spoke holes are approx 3.2mm. I expect this will require...
  15. bdteakle

    BMSBattery Bafang hub - the right controller?

    I want to set up a mountain bike with a 200W 26" front hub motor, for legal road use here in Australia. Not being happy with my previous Australian retailer, and seeing that some of you have had success with BMSBattery.com, I ordered some parts from them. This week parts have arrived, all in...
  16. bdteakle

    Controller overheat - advice please

    For the record, I want to post a follow-up note. It seems the battery was causing the trouble, and the controller never was the problem. After the first couple of "lights out" breakdowns, the retailers sent me another controller. I mounted it outside the bag and it now it never gets more...
  17. bdteakle

    Controller overheat - advice please

    Thanks for the advice. As guessed, the controller was in the black battery bag on the back. It had a gauze window on one side, but overall was poorly ventilated. I've followed your instructions, taken the controller out of the bag and clamped it to the rack with some pieces of aluminium...
  18. bdteakle

    Controller overheat - advice please

    I'm new to this forum, but have learnt a lot from reading through the threads. You're all a great resource! I recently bought a road-legal front hub motor kit - 200w here in Australia - and installed it on my Dahon Boardwalk folder. The kit is an EVO electric bike conversion kit, retailed by...
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