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I like brake cut-offs. The bike in my avatar has always an ON, three leve l PAS. A quarter turn of the pedals kicks in the motor, making a low speed maneuver like a tight u-turn tricky, unless I turn off the bike or lightly squeeze the brake. Other bikes, I can bump down to PAS 0, but still...

Didn't know about the Keyde motors until now. It's a nice concept. https://www.alibaba.com/product-detail/keyde-new-front-motor-brushless-motor_598408346.html?spm=a2700.7724838.2017115.98.47296cdbPyH75F

Naht for me.. Can't find my phone again. How do I ride my ebike,

If your kit has the round 9 pin motor connector, then the problem is the connector isn't fully seated or <yikes> you forced it together with the arrows not matching. I've seen this. If it uses bullets for the three phase wires, and a 2x3 6 position connector for the phase wires, follow d8veh's...

I have several of those wattmeters. The first one I owned seemed to give watt-hour numbers I could believe. Then I broke it, or it broke itself, and the replacement gave far lower readings. That led me to try two more, and all were inconsistent on WH, up to 50% different, except that the AH...

Really? Thank you, Neath!

PSWpower lists TS-QD197 and TS-WD215 as options under the "Right" category. What are they, please? Am again considering the 36V 350W kit for a light weight bike. I would get a throttle because I am used to having them, although my riding style is pedal assist.

If you bought the Q128H from BMSbattery and also their controller that has the round motor cable that matches the motor cable, that should be wired already for a speed sensor inside the motor. I believe you need the P1 parameter to be 1 to have it work right. I have a Q128H sitting here, and it...

D8veh, I have found that racks for 26" bikes are too tall for a folder. I installed two racks (these had no battery trays) last year, and had to cut the struts shorter. My dilemma with these little bikes was finding a battery that didn't ruin the looks of the bikes. I'm using 260 rpm Q100H...

Good looking conversion, Jonah. I assume there is a battery in the bag under the controller, and wondered what it looks like.

Ive ridden torque sensors on production ebikes. Very nice, but for me, the torque simulation mode with 5 level PAS on a KT-controller is fine. In addition, I have my reservations about a kit implementation for a torque sensor being any good for rideability and durability.

I like that ebay kit. I believe he's the only guy in the US with a low cost geared motor. I bought one from him three years ago and have 1300 miles on it. No troubles with the motor. I had the LED version with 3 level PAS, which is a bit crude but level 1 is perfect for me as it runs up to about...

I would convert the mountain bike, because I believe you never want to ruin a good riding fast bike with 12 pounds or more of motor and battery. Some motors here in the power hungry USA weigh more than 12 pounds alone

I've got two or three of these VT12-L's laying around, but haven't used them. I've been using the 8 magnet V-7 sensor in the red package. The disk is 4 mm wide, which is 6 mm less than the VT12. The tradeoff is that the V-7 can be mounted in 4 different positions, and only one works right. You...

FYI. I had one like that with no brace on my fatbike, and it would turn on the chain stay arm. I started to tighten it and arrgh I felt the fastener go loose and I realized the metal tube (steel) was being crushed. I stopped, but could see that the round tube was slightly flattened. It had two...

A 10S-3P is 30 cells. You're buying $2 cells. I expect the cells will have too much voltage sag. Rated at 6AH, but after 3AH is used up, they will be around 36V and, any demand for high current will shut off your ebike. I would look for something with better rated GA cells.

This is for a Kudos Vita bike? I have never seen one, but it's better to identify what you are working on, And you said the motor is 3 pin. Did you mean it only has three big wires going to it, not three big wires and 5 small ones? Only three wires would indicate you need a sensorless controller.

And full charge is 42 volts. If he really got 36V with a meter, it's around 40% charged.

Thanks for the report, WT. After looking at the last four pages of that endless sphere thread (I had read the beginning some time ago), I said, "Good grief. It's still all about stuff breaking!" The throttle/48V/500W had tempted me, but reliabilty issues sure killed my interest in another mid...

In addition to the .2C rate used for capacity of a cell, they also run them down to 2,5 volts for specifications, Most battery BMS circuits will shut down before 2.8 volts to allow for some imbalance. Your motor controller is usually more conservative and shuts down around 3 volts per cell. I...