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Terrain probably counts for a lot, much of the time I'd manage with a spoon brake so there's nothing to recover, but descending long steep hills coasting drag uses nowhere near the energy available for regen. Regen's stress reversals used to mean it needed a direct drive (DD) hub motor, and for...

"PAS no signal whether peddling forward". If you mean no indication on the display it's possible that reviving the PAS sensor (or signal) will do the trick. Try repositioning the sensor in case it's been bumped out of alignment etc. Check (or post a photo of) its plug to see whether you could...

Dsub seems ideal but I haven't found a straight through 15 way cable yet, VGA cables have certain pins connected in the plug and <15 cores. Be wary of sharp edges when routing the internal connections!

@saneagle I used thick washers under the screw heads to keep the bends in those pipe clamps from sagging under tension, or lessen it anyway. Am I doing it wrong? Didn't seem worth the faff but I've a load left over (although smaller than 36mm I think).

I'd use a fat black ziptie and some rubber e.g. inner tube between frame and box to stop it slipping. It's cheap, there's nothing to make and it'll show less than alu strips. You can get strip metal pipe clamps the shape of your originals, with optional rubber sleeves, but the bends only hold a...

Kudos firstly to WheezyRider for having a sharp eye for a potential problem and thank you Yosepower for reviewing your design, to do so within days is all the more impressive.

These are both popular: Motor Simulator - Tools https://ebikes.ca/tools/simulator.html Bicycle Speed (Velocity) And Power Calculator http://www.kreuzotter.de/english/espeed.htm Powercalc vs ebike.ca simulator | Endless Sphere DIY EV Forum...

What are the specs for the motor and controller? My hunch is a fried controller might behave like that, is it in free air or in a bag/box? You need saneagle!

If the new bike has disc brakes you could probably use your 26" wheel. If not have you checked the spoke counts are the same?

YP claim that the wire can take the heat and the fuse will keep it in spec, saying the fuse would rupture at its continuous rating. As you say that's not what the fuse is for but it further suggests their concern is with protecting the wire from over-temperature rather than the cells. In a way...

Well said. That's the case for total heat in the enclosure. Where a wire crosses 'quite hot' cells you need to avoid creating a hot-spot so it's the power per unit length that matters. Again, users can't know if there's any actual problem but with a safety-related item it's right to ask the...

Several people have asked several times how hot this wire will get. We haven't seen hard evidence that it gets too hot (an "actual problem") and we can't expect engineering answers from customer liaison. Still it's a bit worrying that Lily-YOSEPOWER's response has been the opposite of what...

Doh, sorry! Here's the link: SPEZI International Special Bikes Show https://en.spezialradmesse.de/

If you'd like someone to share driving and costs - I lived, drove and spoke EU for some years - or you'd simply like to meet up for a coffee, then drop me a line.

I disagree. Battery fires have raised issues you can view as: Future: a need for improved technologies, safety standards and regulation. Past: a legacy situation of battery fires occurring and posing a risk to life. Present: a scramble to impose fixes and an opportunity to...

That's dangerous thinking. Bike laws are rarely enforced against individuals but the proposed bill acts against the suppliers of batteries, chargers, ebikes and conversion kits, and they're much easier to pin down. If Certsure were named as an assessor, this certifying body that funds a de...

ESF's proposed bill 1.(1)(a): "unless conformity assessment procedures have been carried out by a conformity assessment body (‘CAB’) authorised by the Secretary of State". ESF's annual report 2020: "The Charity’s principal source of revenue to fund our activities is Certsure LLP, our...

AIUI that rated 48V limit stems from wanting to keep the charger voltage below the SELV threshold of 60V (so both 13S and 14S/52V batteries should qualify if rated 48V). However EN 15194 4.2.4 refers to the Low Voltage Directive, not SELV, and Low Voltage is sometimes given as 75V to 1500V DC...

I promise to like and subscribe anyone who can fit this shambles on a Venn diagram!