This is my commuter ebike. I've had it for over a year now.
I've been riding it about 9-9.5 miles/day since I built it - pretty much every weekday, rain or shine. This, plus weekend riding and store runs, works out to about 2500 miles.
In this year, I've replaced the following things:
- Chain (stretched beyond wear limits)
- Rear freewheel (torn up by the stretched chain, partly because I mostly use the small sprockets)
- Rear brake pads (worn, replaced with KoolStop Electric Bike Pads)
- Front brake pads (same as the rear)
- Rear tube (took a huge nail, but I was able to ride home due to the slime in the tube)
- Throttle lever (the thumb bit snapped off).
None of these left me stranded, and only the front brake pads required minor side-of-road tweaking (the pistons weren't retracting properly with the pads worn out and the brakes were dragging).
The only major additions have been more light up front (powered by a DC-DC converter I built) and a set of bike balls.
At this point, I can confidently state that this bike is exceeding all my expectations! It's somewhat overbuilt for my needs (which was half the point - pushing limits on a daily driver is a way to have an unreliable bike), but it chews up hills easily, is cruising well under rated power, runs cool, and generally is an incredibly boring ebike - which is exactly what I wanted. It just works.
I've got a 15-20 mile range on my current battery pack (36v, 13.3AH LiFePO4), a top speed of around 23mph on flat pavement, and while I have to pedal some to get up hills, the motor covers the bulk of my power needs.
The fenders do a very good job of keeping the wet road grit off me, though I'll still take some splash on my shoes from the front wheel if there's standing water. The rear fender works perfectly - my backpack has zero road grime on it.
The triple layer of armored tires, heavy duty thorn resistant tubes, and slime also works exactly as I'd hoped. I've only had one tire problem in a year of commuting, and that was a rather large nail. Even with that, I was able to make it home riding - I consider this a huge success of my tire system.
I'm incredibly happy with this build, and would absolutely encourage anyone considering a commuter to go for the "somewhat overbuilt" approach to reliability.