I did think that tbh and but always worth an ask. Some on here (like your good self) have an uncanny knack for finding things on the Web or in the shed!
As a year round commuter of over a decade regardless of weather..... Yes, get these. I have had aldi versions but I think these are better quality. Oddly they are not as warm as their retro reflective version. Both come up very small. Order bigger than you think by a fair chunk
Personally I...
I thought the same... All those tiny joints /fault points seem cheap to me and fundamentally flawed anyways!
But I am no engineer so just a gut feeling tbh.
Very keen to see what you make of it VFR!
The tensioner I have is this one
https://m.bikester.co.uk/shimano-alfine-ct-s500-chain-tensioner-chain-device-silver-372020.html
And previously used and then ditched the singulator style
https://m.bikester.co.uk/shimano-alfine-ct-s510-chain-device-black-silver-474018.html
I actually find alfine far less hassle with a tensioner and vertical dropouts (my current frame) over my previous (horizontal) as I'm not forever re tensioning it. The alfine sprung tensioner (as opposed to a singulator style) also helps with chain line on a mid drive conversion
But, point...
You could convert a suitable derailleur bike to nexus 8 for under a100. Hub is 55 at planet x now
https://www.planetx.co.uk/i/q/HUSHNEXSG/shimano-nexus-sg-c6010-8r--8-speed-hub-32h
I always assumed it to be a control thing akin to, say, apple. Oem only, dedicated frames, fully closed system. Release a hub and a one can take it and stick it in any frame (OK, that's a bit flippant but you get my drift)
Hi and welcome
Could be a number of things. Only way to be sure is to test things in a logical order
You will need a multimeter. Do you have one? If not then buy or borrow.
First thing is to test the battery after it has been charged. It should read 42v or near to it
VFR has answered in detail but on a higher level...no, a geared motor doesn't replace actual gears. What it does, in real terms, is reduce your demand on your battery and give you a free wheel ability ie no or little drag when pedaling without power.