The "rear-wheel lock" you have on the twist, and available to buy separately (I've forgotten the name?), looks very useful in that respect, as an extra measure maybe?
If it will fit on your chosen bike (?) it's one of the best defences, since bolt cutters won't work on it, and thieves don't come prepared for such a rare item. Sadly, it won't fit on Torq or Quando since the battery and carrier mountings get in the way.
It's the
AXA, available from Fisher Leisure through bike shops.
Since it seems the hub motor I'm planning to get may be less difficult to pedal away without power, and I don't know if the system can be "locked" any other way (i.e. to make pedalling hard, in addition to no power to motor), & I don't fancy having to chase after my ebike if its nicked, (15mph or not!) do you think that rear-wheel lock would be a good investment for me (to be used as well as a D-lock)?
I only use a single lock because all my parking is very short term and doesn't follow a pattern. But if your parking does follow a day/time pattern, and the parking is for extended periods, the more security the better. A second prominent lock to tackle would definitely make a thief hesitate before an attempt, twice the chance of getting caught in the act.
Something never mentioned is to use an all over bike cover which could be carried folded on the carrier. Any thief wouldn't know if it was worth looking, and might hesitate to do something so obvious as lifting it up sufficiently to see what was underneath and what locks there were.
That last paragraph emphasises the best possible element in security, doing the unusual and unexpected.
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