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  1. Nealh

    Is there a gearing comparison table for hub Vs mid-drive?

    Certainly more wear/tear and a shorter maintenance schedule then the hub bike drive chain. I think it depends on ones power and strength, I found for me the BBS01 wasn't much better then a hub for when things got tough. I would still be struggling along at 5mph on inclines, once my energy...
  2. Nealh

    21700 cells,

    What config are you going to use Tony 10s 4p or 13s 3p ?
  3. Nealh

    21700 cells,

    Moli also have two other large mah cells, the P45B /4500mah another high a rated cell of over 30a rating and the M50A /5000mah a 10- 15a rated cell. The P45B is said to out perform and be better then the P42A but isn't available just yet, it is expected possibly by the end f the year. It is...
  4. Nealh

    21700 cells,

    Cells sitting at 3.51v which is prety much that which all cells I have had are charged to from the factory. By most standards not many cells but then again I'm not after mega current draw or throttle usage. As nearly always the case cells come in a small compartmented box. Date code 2LB12. 2...
  5. Nealh

    250W 36V basic speed numbers

    On throttle one would expect the wh/m or wh/km figures to be about double or more, so quite expensive depleting the battery far sooner.
  6. Nealh

    Help with frame for electric bike

    Some fat bikes have an overall BB length inc the axle of 190mm.
  7. Nealh

    Battery charging - cost of

    £10 each or so on ebay. Or go to Scotland where the landlady at the tea shop will charge £2 for a battery charge.
  8. Nealh

    Easiest way to increase top speed from 25kph to 35kph on 250w fatbike

    That was 24.5 in 700c wheel size, the motor was already wound for 300 rpm so one likely would have to go to 48v in a smaller wheel size.
  9. Nealh

    Is there a gearing comparison table for hub Vs mid-drive?

    What current is the controlelr rating ? One assumes the climbing is done in top assist level ?
  10. Nealh

    Is there a gearing comparison table for hub Vs mid-drive?

    Both the BBS and Tsdz can accomodate 2x front rings, 34t being the lowest one can go. Some derailleurs don't reach over far enough, I use a an older negave (shimano) front mech to get the throw when I had BBS01 with 2x set up. One may suffer some cross chaining so not all gears may be...
  11. Nealh

    Help with frame for electric bike

    JIS is the std for all square taper and believe that is what they are all made to. The thread should still be std english thread. First though one needs to remove the remnants to leave a nice cleaned up shell then one should see a 120mm measurement, as I mentioned 120 is not a common width shell.
  12. Nealh

    Help with frame for electric bike

    Fat bikes aren't my thing but one assumes that is a 120mm BB, I thought most FB BB's were 100mm but tht certainly isn't. 120mm isn't common. The actual shell looks to be 120mm so I would think you need a 120mm SQR JIS BB and a square taper crank set. Don't take my word for it, you will need a...
  13. Nealh

    21700 cells,

    My new cells turned up today, superb service from Ben and the team at Fogstar. Ordered one day and they arrived within 24 hrs via DPD. Cells are so scarce at the mo but they have had a fresh delivery of Molicel P42A, so I ordered 24 for a 8.4ah/369wh 44v battery build for the Kona ute/ Cotic...
  14. Nealh

    Help with frame for electric bike

    It's a fat bike so looks like the BB shell is quite long, you need to measure the BB sheel width to see how long a BB you will need. Std bike sizes are 68mm though some are 73mm.
  15. Nealh

    Replacement Handlebar Mount for Swytch kit?

    It is a bespoke part made for switch kit, although not CANbus but a proprietary bespoke part they can charge silly prices for spares as they have you by the balls. One reason I mainly steer clear of most bespoke kits where one know that spares ar eonly available from one source.
  16. Nealh

    Battery charging - cost of

    Use an individual plug in power meter between socket and charger.
  17. Nealh

    Easiest way to increase top speed from 25kph to 35kph on 250w fatbike

    The oxygen 36v Bafang CST 250w 17a controller kit topped out at 24.5mph.
  18. Nealh

    electric moped fault

    Pull out the White jst connector ( with the Yellow/Red and single Black wire). You will need two needles/pins or some pcb strip pins. Place one needle in the Black wire pin location and the other in the Yellow next to it, set your meter to 20v and write down the voltage as #1. (Black probe on...
  19. Nealh

    Hi

    Yes the giant uses it own CANbus system, they are anti social user devices with short shelf lifes once they go wrong and costly out of warranty.
  20. Nealh

    Easiest way to increase top speed from 25kph to 35kph on 250w fatbike

    It's the same old story someone wants a legal pedelec then want to make it illegal by increasing the speed. Yesterday I was able to reach 33km/h with my 250w hub motor but that was using my own power only, my cut off speed is set for 22km/h so I get a bit more range from the battery.