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These things are not going to be cheap as they are not mass produced in China. Even the fairly standard ICE recumbents made in larger numbers cannot be called cheap. The thing is you have to compare it to the alternatives. Public transport? OK if you are in a big city perhaps, but in the UK...

If you go for a two wheel at the front trike, despite what people have said here, they are very stable, unless you take corners at stupid speeds. At modest speeds, even one wheel at the front trikes are not that bad. As Nealh says, if mobility is limited, getting down into and out of a low...

Also, whatever you set it to, your motor will have a maximum speed for it's given voltage, meaning you will generally not exceed 20 mph

If that's the way you want to go, best to grind off the AKM code then. A quick Google of the AKM code will quickly show it to be 350W and you have some explaining to do.

If it says "350W" on the motor, it's automatically breaking the rules, which is why I have stayed clear of Yose Power's 350W motors. @flecc, I think the reason we have CBT etc and other tough rules for motorbikes etc goes back to the late 80s when there was a big outcry about the number of...

I've used silverfish packs for quite a while and water ingress has never been an issue, despite riding in some horrendous conditions. If it's not working, have you checked your fuse? Is the switch functioning properly? If you put a multimeter on the output, do you see a voltage when the switch...

It's not great, but what's the alternative though? Picks her kid up by car and makes the roads even more congested and dangerous? She probably thinks the roads are too dangerous to cycle as it is.

While other countries have perfectly sensible attitudes towards scooters and they are used extensively without significant problems (talking about 20 kph limit and 250W max cont power, not allowed on pavements). The "car that collided" didn't do so of it's own volition, it was driven by a...

Yes, for no load speed. I didn't make it clear which one I was talking about. However, I think we're agreed that the wheel in the video isn't going that fast.

Could have put them in series, with a controller for 72V, but even then, max speed would only be about 33 mph for a standard wind motor. Maybe if they had put a 20 inch motor in a 700c wheel it would go a bit quicker...but looking at that wheel, it's not spinning fast enough.

Sounds interesting, looking forward to seeing the result.

Which one did you go for, the one with an external shunt?

Some interesting improvisation with the rack. Not sure how well the rivet & cable ties will hold long term, but it's a starting point :) Hope the job situation improves & the next build goes well.

My guess is they set the wheel size on the LCD to 20 inch and set the cut out speed to a high value, so the bike would max out at around 20 mph on the road, with the no load speed around 25, but reported as higher. As you say, there's no way that wheel is doing anywhere near 40 mph and that...

Have you looked at both ends with a magnifying glass? My guess is it's probably 20A. Did you not get a spare with the battery when 'you bought it?

What does it read if you put it on the 200V setting?

40 sounds a bit low. Is it fully charged?

As I've only used the internal shunt version so far, and only intermittently when I needed to check something, I have not mounted it too far from the battery, and just lashed it on with cable ties. I used to have the older type on the bike most of the time until it died. I plan to 3D print an...

Did you mean this one? I would say it's a lot clearer than this type: Plus it goes up to 100V as opposed to 60V max for the one in the photo above. The backlight can be activated or turned off by pressing the button.