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  1. marka-ee

    old KT controller, regen off, but it still does regen.(via throttle)

    I have an older KT controller and I set the C13 parameter to zero, which is supposed to turn off regen braking. Well, technically it probably did because the brake levers perhaps are not doing regen anymore, but the throttle, when you throttle down, is still doing regen. Does anybody know a way...
  2. marka-ee

    Making a split battery system: bms wiring questions.

    I'm building a new battery pack out of some salvaged 60Ahr LG automotive cells. These are fairly bulky and the only way I can see fitting it on my bike(s) is by splitting the system into two halves. Right now I'm considering a 12S total system because it makes at least both halves be the similar...
  3. marka-ee

    42-88V variable current/volts charging. Poor fan flow design choice?

    I have an AliExpress battery charger that does 10 amps and has variable voltage and variable current. I think it's a pretty good charger overall so far because it can charge my 10S batteries and also 20S. Or anything in between. My question though is how they implemented the cooling. There is a...
  4. marka-ee

    some AI images of trikes for fun.

    I do a lot of playing around with generating images on my local machine. These were generated with Flux model. I get such a kick out of these sometimes it's like opening a surprise each time it finishes.I wanted a hub motor, but it has a hard time with that for some reason.
  5. marka-ee

    Brainstorming ways to make instant 25 km speed limit / low power mode, in case I get inspected.

    I live in an area that requires e-bikes to have some pretty severe restrictions. They don't like throttles and they only allow power supplementing up to 25 km per hour. On my other bikes, I don't have a problem with this because they look like normal bikes and I just do a lot of ghost pedaling...
  6. marka-ee

    e-bike headlights 2025. What's good ?

    I know, I know, there are other headlight threads, but things change rapidly. For example, I have small rechargeable bike headlights from both Aldi and Lidl here in Europe, and they both feature the same type of new reflector design. The LED is on top, and it shines down onto a correctly...
  7. marka-ee

    Amazon 1KW e-bike kit controllers seem pretty krap these days. '48Z1000W LY-202409-LCD-E'

    I recently got my 26 inch 1000 watt direct drive hub from Amazon Europe. Of course it ships with things I don't care about such as brake levers etc. but this post is about the controller. And they don't seem to sell 36-48 volt kits anymore. This was strictly listed at 48 volts. The model number...
  8. marka-ee

    making a 'nuclear' rated rear red light system

    Okay, so I'm thinking of getting a Velomobile to play with, but I'm reading about how they are so low and invisible to cars, and I do have some experience with this because I already have a trike which is quite low and also suffers from the same problem. So here's my game plan: get or build an...
  9. marka-ee

    more advanced logging for Ant BMS?

    I have an Ant BMS on my bike with Bluetooth. Of course I have the app which can interrogate it and set parameters. However, that app has a lot of shortcomings. For instance, no logging of anything, no display of min voltage reached or other things like that. These things are important if you're...
  10. marka-ee

    Free wheel ratchet stopped working, but I love the silence.

    One of my bikes with the direct drive motor has suddenly stopped making the clicking sound when you are not pedaling. It was still able to engage to be able to pedal, but it would have a delay or have a couple of spins before the engagement happened. The main thing I am wanting to comment on...
  11. marka-ee

    20S charger , any hack to modify end voltage and/or current output?

    I'd like to get one of the China metal cased 20S 8A chargers. However, I'd like to be able to modify it so that I can reduce its output current so that when I have time, I can charge at a slower rate for benefit of the life of battery. Has anybody had success in identifying a place to put a...
  12. marka-ee

    Please help diagnose screech sound from small geared hub motor and recommend best grease.

    I built a small folding bike with a geared sensor-less 250 watt hub motor. I have yet to disassemble the hub motor because it's a little tricky but I'm experiencing an intermittent 'screech' type sound for lack of better words. Definitely not a grinding sound. Could it possibly be the one-way...
  13. marka-ee

    Cannondale Moto FR suspension forks. Why did Cannondale saw off disc brake mount?

    I recently purchased some used Cannondale Moto FR suspension forks. These are the ones which use needle bearings in both sides thereby highly reducing any static friction, which is sometimes called stiction. One peculiar thing about these, and I've seen other examples with the same situation...
  14. marka-ee

    belts: Gates vs Optibelt ?

    I'm looking at various prices in the EU for toothed belts and I'm noticing that Gates is almost double the price of the more local Optibelt type. Does anybody have experience with Optibelts as far as durability, etc? I was looking at pricing on www.zahnriemen24.de , I'm not sure if it's the...
  15. marka-ee

    Observations from a new to tadpole trike rider.

    Up till recently I've been riding a Nazca Pioneer short wheelbase recumbent with 26 inch wheels and a regular upright mountain bike, both electrified. I recently purchased a used Optima Rhino FS, which is a low rider tadpole trike with 20" wheels. Until I come up with another solution, I...
  16. marka-ee

    preferred throttle style for indirect steering tadpole ?

    I'm working on electrifying a low slung tadpole trike with indirect steering where the grips are about at the height of my legs. Currently, the right grip is a twist shifter, which I believe I need to convert to an old-fashioned lever or move it to the left grip and then I'm wondering about...
  17. marka-ee

    is geared hub motor feasible in a 20-inch rim?

    I'm building a Tadpole trike with 20-inch rims all the way around. I like to be able to go at least 50 kilometers per hour, so I'm wondering if it's feasible at all to use a geared hub motor to achieve this. I typically use direct drive hub motors, but I'm curious about the geared ones, as they...
  18. marka-ee

    In EU, help selecting DD hubmotor for 20" trike rear. Amazon.de ?

    Looks like I'm going to convert a trike. The trike is a tadpole with 20 inch wheels all around. I'd like to put a direct drive hub motor with disc brake. on the rear but it seems that they are fairly rare for this wheel size. Can anybody help me find a good selection for this project? I'll...
  19. marka-ee

    Going from hub motor to 3000 watt belt drive. A good idea or not?

    My Nazca Pioneer recumbent bike currently has a 1000 watt gearless hub motor. While I do like the silence of it, and since I don't have any hills near me, it works fine except for one thing:The unsprung weight is a problem for my smoothness of ride if I'm not mistaken. I am toying with the idea...
  20. marka-ee

    Switching bike to cells from a Hundai Kona recall ( LG pouch cells )

    There are some sellers that sell 3P cell blocks from a recall of Hundai Kona EV's that had a flaw in the pack design. I'm going to separate the 3P units and make a 13S pack for my bike. Price for these works out to $15 per cell , each cell is 300mm long and 60Ahr. Anyone else see these cells on...
  21. marka-ee

    recommend a watt/hr meter for me please

    I am looking for a small perhaps RC type watt hour/Amphr meter to attach to my bike or scooter. 48V max 2KW. I have use one of the cheap 'blue' ones before, but is there anything more durable and maybe smaller that is recommended? Having a remote mount display would be ideal, but I know the...
  22. marka-ee

    If I give a BMS slightly lower volts, will it still balance?

    I have a new kaabo scooter that seems to want to charge to 4.2 volts per cell, something I really don't like at all, as I value cell life over maximum capacity. My question is: I see some charger being sold that supposedly charge to 90% or 80% by switch , for these types of scooters. Can you...
  23. marka-ee

    Kaabo Mantis infos ? bms?

    I got a Kaabo Mantis w dual motors. What a dramatic improvement over my m365 , but at double the weight. Anyhow, Does anyone know if the BMS that Kaabo typically uses does the typical, what I call 'dumb' balance charge to 4.2 volts which harms the cells faster ? I think it has some kind of China...
  24. marka-ee

    tired of pads wearing, alternative disk brake setups ?

    I have 180mm disc brakes on the front of my Recumbent, 26" tires. I am underwhelmed by how long the pads are lasting even though I try to use the regen braking as much as possible. Would it be possible to adapt a brake setup from a small motorbike or moped? I'd like pad area to be > the size of...
  25. marka-ee

    3s2p, combining 2 cell types to handle current bursts?

    This isn't for my bike, but for my fixed wing drone. I want to replace it's old factory 3S lipo with some 18650's that I have already. The 'problem' is that the high current ones I have ( rated 22A discharge ) are kinda low on capacity : 2Ah. I also have some lower discharge capacity 18650's...
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