Recent content by nfmisso

My commute is about the same as yours, maybe a bit flatter, the only hills I am dealing with are under and over passes. I have two ebikes that work well, on slightly better than the other: 1) My 2nd conversion; it is a mid '90's Trek 720 (cro-mo frame and fork, no suspension) with 622 (700c)...

Based on your post; I would suggest going with the safest route: going with your current battery supplier if you are happy with their work. Tell them your performance desires: V, Ah, and shape of the battery.

This is the bigger one (up to 60 cells): https://www.lithiumbatterypcb.com/wp-content/uploads/2017/05/G-2.jpg Smaller one: https://www.lithiumbatterypcb.com/wp-content/uploads/2017/05/F-2.jpg

Sounds like the battery's BMS cutting out due to low voltage.

My thoughts (no offense intended): you are not prepared to start and make money with a business. Take a look here for some resources: https://www.sba.gov/business-guide

I went to: https://www.perryspowerbikes.com/product-p/m1-ppb.htm for information. The specs say you have 27.5 x 2.5 tires; convert to ETRTO to make the math possible 63-584 (width and BSD). Your tires have an outer diameter of approximately 710 mm (27.9 inches). If you switched to 559...

Power ratings have become marketing gibberish, and in reality what gets to the motor is extremely effected by the battery's current state, and to some degree the wiring within the battery, from the battery to the controller and from the controller to the motor. And the resistance of the motor...

ditto. It looks just the like rim failure we had on our tandem (not ebike). The pads wore thru the rim. suggestions: Use the rear brake less and the front brake more - you get more retardation from the front than the rear for a given amount of pad wear. Use brake less, anticipate and coast...

I do see the circuit diagram picture, and it was visible to me when I first posted. Of course, everyone's results may vary.

Not really, even on ebike, there is a significant difference between DS and NDS loads. On my non-electrified bike with 559 rim (26" mtb); on the rear I run 40h, with Wheelsmith DB15 spokes on the NDS, and DB14 spokes on the DS. This results in about the same tensile stress in all the spokes...

BMX is a size or type of chain. KMC is a brand of chains. KMC's Z410 chain is a BMX chain. Like all other BMX chains, Z410 is 1/2 x 1/8 inch chain. 9/10/11 speed chain is 1/2" X 11/128" 6/7/8 speed chain is 1/2" X 3/32" (12/128) Are you using ebike chain...

Alex DM24 has note above, or Velocity Cliffhanger (about 4 to 5 X the price). Agree with 13/14 or 14/15 butted spokes. If (when) my 622 rear hub rim fails, I plan to use Cliffhanger rim with 18 spokes on the non-drive side and 36 spokes on the drive side, with Wheelsmith DB14 spokes. I will...

is there a steel plate around the Hall Sensor that fell out? The steel plate's function is to guide the magnetic flux thru the sensor.

freewheels on motors work, and are very common. Here is an example: https://www.amazon.com/dp/B01CL2NWUY And another: http://sickbikeparts.com/electric-motor-freewheel-heavy-duty-14t/

To make an estimate, some information is required. At your current maximum speed: how much current was the motor drawing. what was the voltage at the output of the controller or input to the motor (RMS with respect to ground for each of the three terminals averaged over at least one second)...