this post was submitted on 08 Aug 2026
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Electric Vehicles
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How big is your assist motor?
I have a class 3 cargo bike with a 750w hub motor and 0 through 5 for "assist level". At level 5 it accelerates as fast as a car and holds 28mph with minimal exertion on my part. Level 5 is only used in traffic: level 1-2 is "rides like a regular bike" and 3-4 are for heavy cargo, head winds, or nasty hill climbs.
500 W sustained, 750 W peak. By default it's class 2 and limited to 20 mph (which is what the label on the stem says). I typically ride between around 18 and 22 mph. Only really go above that on flat or slightly downhill sections, where the motor isn't really as needed anyhow. I ride on assist level 1 (minimum), although sometimes I'll switch to 0 (no motor assistance) on a downhill to give myself a little more exercise.