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One has likely blown a motor hall or damaged a controller mosfet, however to know for sure one needs to find out the error code meaning for the ebike come moped as they differ from one to another.

Sadly 98/99% of the population will not or simply won't reugularly use a bicycle for local or leisure use on a daily or weekly use, once it gets wet or cold any bike owned is put in the garage and lucky to see use again. For those people an electric bike is of little use and likely to be an...

Dave may prefer tea ?

AliExpres is ok sometimes, but there are a few china retailers of e kits and parts. Bmsbattery. Topbikekit Greenbikekit PSWPower.

All your hypothersising if all if and buts, only approx. 4 % of uk regularly ride and tbh most will be to lazy to do so on a regular basis e assist or not.

Any diy bike kit of a more bespoke nature means buying from china sources, the larger battery kits form woosh are for the masses with longer range.

250w should be enough for most reasonable fit people to manage 7 - 10mph on inclines (not silly steep testing ones, but mediocre ones a reasonable person may be expected to ride up). Unfit people or those with issues would generally not attempt to ride unsuitable terrain and a pedelec...

One can use C5 setting to reduce battery current esp if it is on value 10 , 10 = max permiissibe current drawn at each pas level. So for a 15a controller C5/10 is: pas 1 is 13% or 1.95a. pas 2 is 20% or 3a. pas 3 is 33% or 4.95a pas 4 is 50% or 7.5a. pas 5 is 100% or 15a. Rather then use the...

A small battery is ok and are ideal for lighter solution , my 12s 2p though has 20a LG hg2 3000mah cells rather the a 10a rated cell of these two. Limit the current to max 12a with the bbs and the cells should have a decent life cycle. My 2p battery I can get 30 odd miles in pas1 on flatish...

The only sure way of knowing the battery state or soc is to have a voltage reading showing or for capacity a wh reading, one reason why kt's are good is they have a voltage reading to indicate the soc. Leds are pretty unreliable to manage a batteries capacity.

A 12 x 10mm hub axle isn't going to sit in fully and would have a tendency to roll out, although on the lhs one has scope to deepen the drop out on the rhs it is not favourable as it would weaken the derailleur hanger. One could use a pair of torque arms to rely on keeping a hub motor in situ...

Might just be poor quality cells used and once at 50% the voltage sags badly or there may be a bad cell. Try riding with kt4 showing volts ( two quick press's of the on /off button) and see if the voltage sags badly in use. Even pas 3 at 33% current draw may be to much for the battery. Try...

A mid drive will be best, the rear drop outs have a little leeway if one need to deepen the drop out by approx. 2mm for a 12mm axle to sit in better.

If your bike uses the bolt thru axle type ( the type where one has to remove the axle fully to allow wheel removal) then one has to use a mid motor. If you have 9mm qr axles (the type that simply allows the wheel to drop out once loosened then you can use either a hub or a mid motor.

Something doesn't stack up with that battery, It says 13ah but is 6p cells. 6 x 2600 is 15.6ah so the seller doesn't know what they are selling. Personally in this day and age Sam 2200 or 2600 cells are yesteryears cells and one can find better celled batteries to day. The specs state 30a...

Now dearer then ebay, it still pays to do the homework. Even on the AliExp link scroll down the page and a seller is offerin git for £12 less, but still going to be nearer £90 with tax.

It should set a presidence and would like to think more would follow, an obvious one would be users of DD motors which are quite obvious to see but I suspect as long as they are pedalling at a legal pedelec speed they will be ok.

Yes the field is more equal now as vat and higher p&p costs appear to be added, aliexpress is still good sometimes for a bargain or for certain items simply not available elsewhere. I have recently bought a Redshift suspension stem with the full set of elastomers for £42 delivered, I expect it...

A silverfish is ideal, three or four members have done so over the last 2years or so. If uses the search area the results will show up.

There's another near horror story on ES where a guys bike batterie/s have failed and caught fire in his garage, lucky for him he heard the commotion and extinguishd it with a hose pipe and saved his bike before the fire truck turning up. On ES they do lots of silly things with batteries which...