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Personally I think the Bafang Ultra is already about as much power as makes sense in an "ebike", I'm more interested in refinement in things like reliability, actually good headlights and tail lights, a properly integrated rack + fender package for commuting, etc.

888-303-8889 is their office contact number. If you call you will probably not get any reply. I have the extension number of Rasan Aycox but I'm not sure if it has changed since my contact with him in April 2019. As far as I can tell he is still head of CS at the company. I really cannot believe...

That's just kind of how it goes with these bikes. The M620 is just too much motor to have any weak links, so expect to break the weakest link. Whatever breaks is worth overbuilding. If you have a frame failure contact Biktrix, they are one of the few companies I trust to actually make good on...

You would be probing the battery at the discharge port with it switched on. I would do this experiment myself but my HF1100 is long gone.

They "arranged" for the charger to target 95% SoC because they don't want to risk overcharging the battery even with a worst case, potentially out of spec charger. Overcharging can lead to internal short circuits and fires so it's extremely dangerous to let that happen. My advice is to...

When I had an HF1100 I could get it to 58.2V or so with the cheap charger that they shipped. What's probably happening is that the line calibration is imprecise because the stock charger is cheap so they target 95% SoC max, with say a 5% deviation in SoC either way. Some people get chargers that...

I have the same light and the turn signal and other features are frankly useless, I can never tell when they're actually on.

This can happen with the ripcurrent too. In general you need to do extensive QC with these bikes.

I'm reasonably confident the bike will not have a VIN. So I'm not sure how you plan to register as a moped. If you want to register a moped you should get something like the Sur Ron which has enough power and the looks to make police interested in what you're doing. If you want to be able to...

Honestly in practice the Bafang Ultra is actually a 1000W nominal motor, when you spin it at speeds you actually want to run at for motor efficiency the power output drops down towards nominal. 1500W is a peak. If you limit current to 25A instead of 30A you will in practice have a 750W nominal...

Good luck, I highly suggest doing a check to make sure the frame is straight and true as soon as you get it, everything else can be easily fixed with some money and time but a bent alu frame is realistically not fixable.

https://www.ebikes.ca/c-phaserunner.html You want to run a controller like this that is rated for higher voltage. You probably can't do it with the stock controller. If you want to go all the way you can probably do like a 72V or 84V pack with a low current limit to stay within your current...

"Ideal" storage charge percentage for Li-ion is about 40%. You can charge to 50% without big longevity loss. Everything else is spot on.

A low-end MTB from Giant (Roam 2) is 600 dollars. Then add in a 1300 dollar kit for a BBSHD + 52V wolf pack and you're at 1.9k. Frankly, considering just how fast that BBSHD will push a bike you shouldn't consider anything cheaper unless you have free health care.

It's called a bend in the pipes to separate out water. And even if it doesn't get all of the water out of suspension it doesn't matter, most engines can tolerate some amount of water splashing through them. None of those solutions are really relevant, especially when the whole bike frame...

Those vents are not actual vents, there is no real airflow going on there AFAIK, more just ribbing to try and increase the dissipative area. Even if there was you would need a lot more airflow to keep the thing from throttling. That would also completely compromise the weatherproofing of the...

The Hyper bikes all have serious thermal management problems too, the motor is on paper capable of sustaining the 1800W for a while but the controller is in the same place as the CCX and will start going into thermal protection mode before long.

Max safe voltage for the capacitors and other components in a 48V controller is usually 60-63V. So 52V is the max. More power is really a thermal problem, too much power will just melt the windings so you need to figure out how to cool the motor. Even if you get a new controller that can take...

All of those parameters are easily manipulated with a USB cable that converts to the Higo for the display, lots of programming cables for sale out there. The software is also readily available, just use a laptop to program your controller. Most displays will not allow you to do big changes, if...

The HF1100 has issues with the Mac motor being kind of a pain to deal with due to cogging/stuttering behavior that also causes the speedo to be inaccurate and therefore the odometer and average/max speed stats, the controller is put in the downtube next to the battery and has woefully...