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Yes. Spline shaft load cell sensor in crank gives a value between ~750mV at 0 load, & ~3240mV at max load (4300 would be nice, but nope). I do seem to get about 60Kg on the front pedal before reaching that max reading, & my 12 Kg of resting leg reads ~1270mV right in the middle of the "10-15Kg"...

Hi! Great to see someone else researching exactly what each of these settings actually do. I'll try to clarify, without getting long-winded: 1. The adjustable span of each "Delta Voltage" field (for instance, adjusting the span of mV that shall be assessed as 0-5Kg), allows us to...

Based on the fact that smaller devices show unusual charge-status indicators as well, it probably is a bad connection (or a bad 5v board). One tiny bit of good news is that 5V 1A limited connections probably won't start a fire; but that's not certain since it could be shorting to something...

Hi Jenny, Sorry if this has already been answered here, but could you tell me the approximate internal dimensions of the Dorado 505L case? I know it's not a uniform rectangle inside, so I wanted to model it in 3D; but I don't know the angle or depth of the ends of the case.

I definitely find a non-linear increase in power output, to be absolutely essential for smoothly scaling response. One of the main things I prize about the UART configurable m620 motor+controllers, is the ability to adjust a lot more than just raw percentile of output: Being able to set...

A few advisories about that: 1) Innotrace X1 controllers for the m620, generally replace a UART controller, not a CANBus unit. The controller, display, & battery, all need to use the same communication protocol. (I believe also the brake indicators & throttle...) Confirm compatibility before...

Rich configurability in their UART controllers, was one of the biggest advantages to building a Bafang-based ebike. The super basic two-slider adjustment, offered to some dealers via the BESST tool, doesn't come close to the old typo-laden Bafang Config Tool. Lack of technical research among...

No: Cells are wired together with metal plates or strips to form a battery (preferably via pure-nickel strips (or platinum, etc)), but a secondary set of wires are required, if each cell is to be individually measured for charge & balanced (brought to level with the other cells). Even...

I've been wondering about that: I didn't see any mention of swapping MOSFETs or capacitors, for the few 52V m620 ebikes I've seen hawked... Would be great to get confirmation that battery + firmware flash are all that's actually required to move from 48V to 52V? (m620s seem to run cooler at same...

The Dorado style case (along with many others) is easily available through Jenny Mao who's very active on these forums... The case is great. The case is not a problem; what's inside the case could be: Neither Frey nor Biktrix nor any other ebikes priced within $1000 of the components on the...

In the case of m620 motor+controllers, you'll surely want the UART version, if you are starting from scratch. Note that any "house shaped" connectors rather than round ones, are typically seen alongside CANBus motor+controllers. I understand you may have display & throttle already? If so...

I'm still trying to get a trike for my Mom (who keeps busier than anyone else I know), but they're so expensive!

My condolences! I had extreme cartilage wear before my hip fracture: After six months with no weight on my right leg, finally getting back on a bike really aided my recovery (It's always been the case for me that I can ride with a lot less pain than I can walk). I hope you make an astounding...

I did indeed spend about 6 months comparing before seeking purchase approval, & as you may have noticed from my comments in those threads, I didn't find any others that satisfied (most notably by way of comparison, I wanted brakes I trust & good suspension). The Quietkat Jeep on that list has...

I mean, I agree completely that the details of the battery are critical & should be disclosed. But Frey's prices are way below any other brands I've found... They're certainly not charging "Western" prices. If you're seeing any bikes with the same components priced within $1000 of Frey's $4K...

YUP! This is exactly why I do not want the AM1000 v6: I detest lifting a large battery into its slot, & don't trust battery slots which insert from below. Every device I've ever had where the battery inserted into the bottom, has had battery retention or connection issues. From cameras to tools...

I would much sooner buy a pack with a quality BMS from the likes of Zen or em3ev though, than deal with Bosch schenanigans & higher $-per-Wh than even premium battery builders charge. Agreed that the lack of transparency from Frey about their batteries is rather offensive & frankly unwise...

That Frefat ebike (Firefat? Odd kerning...) has a distinctly different frame than the E56 & E55. Rear shock layout just for starters. Looks great in orange though! Is that your new ride? It looks nice enough that I immediately went searching for details, but I didn't find anything...

I would worry more about getting the most Wh that I could afford, than about the case becoming obsoleted. As tomjasz points out, the Reention Dorado case type is merely the enclosure & latch mechanism. Regardless of brand, they all have just two lengths & one latch type. No worry of the pack...

The following teardowns refer to older packs, which have ostensibly been revised (not that I saw any clear statements about what changed): https://endless-sphere.com/forums/viewtopic.php?p=1391728#p1391728 https://endless-sphere.com/forums/viewtopic.php?p=1526140#p1526140...