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Mid drives (all motors in fact) run best when practicing the old addage 'spin up, gear down' - 14S will make the motor spin faster, which can then be geared down for more torque. However, it's hard to overlook the additional capacity of the 13S pack.

I'm glad that somebody knowledgeable is sticking up for the poor old DD hub motor. They get a bit of a raw deal on this forum, but I love 'em. One other thing they have going for them is that when you get the ebike bug and eventually end up craving more power, they can be fed many kW and be...

If you just *have* to use a switch on the main power line, then you might as well just use a circuit breaker and get some real benefit out of it.

I always thought is was a linear increase, i.e. a 20% increase in battery current yields a 20% increase in torque across all RPM's.

The increase in torque will be linear and will affect all assist levels.

IMO, the 21700 format cell is almost an irrelevance for the ebike market. The advantage of this cell is lower pack production costs and higher pack reliability due to a lower total cell count. For a car sized battery this is a big advantage, but for small bike batteries, not so much. However...

Ridiculous, but why not ride just to the left of them? From the look of this recent thread at Endless Sphere, it seems not all ebikers hate speed bumps though: https://endless-sphere.com/forums/viewtopic.php?f=3&t=86267

Hmmm, interesting. I wouldn't mind 'predictably sensitive'. Combined with maybe a Cycle Analyst, I'd like to try using a torque sensor without any torque multiplication - basically a pressure sensitive speed sensor. Something I might have to try in the future perhaps.

I always like to protect from *on* failure modes with a kill switch that cuts power to the controller MCU through the ignition wire, so was always covered in the event of a 'stuck throttle', even though it never happened. It wasn't so much the sensitivity of PAS, more the unpredictability of it...

I'm going to make an adjustment to this statement: *Craply* crimped connections are a no no. For the record, this is a crap crimp. Well made crimps using quality sleeves and a high pressure hydraulic crimper are superior to soldered connections in every way. They provide a lower resistance...

I agree with the previous poster - sounds like you are the perfect candidate for a kit. Forget a new bike though. They never make sense with a kit since the warranty is voided as soon as you modify it. A kit built bike will also mean that you end up knowing it inside out and you'll be able to...

Its funny really. I did thousands of miles on throttle only without any brake cutouts and it was only when I added PAS that I felt I needed them.

Ever feel that you guys would be better off meeting up to settle this with a good old-fashioned fist fight? Either that, or stop flirting and get just get it on together....

Good find! I'm extremely surprised that your fuse didn't blow though.

Lose the blade fuse. It'll give you nothing but problems and can be guaranteed to leave you stranded at some point in the future. I prefer DC MCB's, but I'm sure other's will recommend their favourite method of protection. Check the legs of the blade fuse for any pitting caused by electrical...

Are you using the frame for an earth connection? If so, not good practice, especially without knowing that all your electronics are fully isolated. My first thought is that the spark is from your main power connection. Check it out for any loose connections/terminals. Secondly, what type of...

Hi OP Since the information provided by yourself has been a little sparse, excuse my question if it is not relevant. Is your charging topology applicable to other cell types, or just your own proprietary packs? I (and many others into high power setups) run a multi kW pack and would definitely...

Hi, welcome to the forum and the world of ebiking. Your setup isn't dissimilar to my main ride. Although talk above of illegality is largely factual, if you don't ride like a dick, you won't attract attention. Please make sure that you install torque arms though. If you don't, its not a matter...

That's about the size of it. There really isn't a 'correct' answer, just a balance between capacity per charge cycle and total pack life. Something that should be avoided though is a high discharge rate of a deeply discharged pack. The perfect solution to this issue is a controller that tapers...

3.5V does appear to be a bit high if just looking at the numbers, but voltage to energy capacity is not a linear relationship the whole way through the discharge curve. Below 3.5V is only around 5% of remaining energy contained in the cell. More importantly, IR (internal resistance) raises...