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Where abouts in Canada are you considering year-round commute? I'm in Saskatoon and ride my Jug Ultra year-round, lots of experience with the process. If you're anywhere with colder than -15C often in winter, I'd definitely spring for trustworthy hydraulic brakes... That being said, I think...

The ultra will actually run 1700W peak with full charge 52V, which is pretty awesome. As for the rest of the debate, what Roshan and Timpo have pointed out are both generally correct: less amp draw at given motor output gives the 52V a slight advantage most of the time, so long as good cells are...

I run a 52V pack on mine, charged with Cycle Satiator to 56.5V (about 85% full, this is for extended pack longevity, which is why I've invested in the Satiator) Definitely a tiny bit more top speed, and you can feel the minor power difference in acceleration... As pointed out by smogasbord, it...

That 6V wire can't provide the necessary amperage for these bigger lights, which is why Biktrix developed this lighting assembly... By taking typical 6V headlight outputs from various Bafang/etc head units, and using it to switch higher (main) voltage to operate the more powerful headlight, you...

This is the correct choice, and best product on the market for the Ultra motor... And many others.

Unfortunately I think you're going to find the same story anywhere you look: popular, competitively priced ebikes which generally are originating from China (or important parts are), are sold out and impossible to re-stock for several months. Biktrix has a lot of Taiwanese and domestic...

It's also there to ensure the rest of the gearing is protected, including the gear it would have replaced... And it makes the motor substantially quieter. So, spare parts inventory consists of basically nylon gears, which are cheap since they can be extruded.

Doubt he needs his personally tuned, best I can tell all Biktrix Ultras are programmed so well there is not really much room for improvement! Probably the next step from here is even more advanced hardware (motor, controls, etc) in future Biktrix generations. For now, those of us riding Biktrix...

Mine's also set up with 5 levels, the PAS stepping is really good and I've never missed having more levels.

Don't be so quick to assume nylon... That's definitely space plastic in there (engineered plastics including the ring gear, probably composite and solid lubricant reinforced). Quiet and very long life, but intended for power levels below a bafang ultra for sure.

I tend to use Eco for more technical stuff (trails), and on the road in traffic I leave it in Sport mode.

Thinking I will buy one of these for my girlfriend come Spring, lots of power, great components for the price, super reliable config!

My Jug Ultra (steel gears), no clunking, only smooth power delivery. I ride in everything from PAS 1-3, occasionally 4 in winter.

Also need to point out: Charging to 85% has nothing to do with storage voltage, re battery wear. Simply charging that extra 15% is where the battery wear is incurred... Thus, charging to 100% and discharging back to 85% has not reduced wear whatsoever. Charging for storage should aim for 50%...

For what it's worth, I charge my Reention Dorado 52V pack at 5.7A with cycle satiator, that's 300 watts, no issues. To be on the safe side, I never unplug the barrel jack charging cable while under full charging, only once it's done or after interrupting the charge by the satiator interface.

I charge my 52V reention pack with 5A thru the typical barrel jack, no issues.... also going to 88% charge typical on Satiator.

Mass production bike accessory/option... Sounds like something a bike manufacturer should produce! Or perhaps integrate into future bikes...

Actually it's not a difficult part to get these days, Biktrix stocks em as do a few others.

IMO, 58T is really pushing it for momentary torque loads. I'm sure his motor has steel gears, but that's not where the risk is... It's the output clutch that will be destroyed by overloading it (different from the pedal freewheel in the motor). Be careful with that throttle from a complete stop...

Maintain it for as long as I like, assuming the lights stay green, nobody cuts me off, no pedestrians crossing, and so forth. But generally I keep the speed around 40-45 km/h on the street, more efficient.