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Palmthree didn't say they ran into the assistance speed limit. Did you run into the 25 km/h speed limit, Palmthree? Derestricting is a double edged sword. You might be having more fun, but often for a shorter time: e-bike injuries and deaths are on the rise for the older population in Europe.

For bicycle ergonomics & proper fit I found this series of articles very informative. I just checked google translate, and it seems it does not muck them up too badly. I found the part about working angles, and in particular about the knee working angle and also about proper upper arm-to-spine...

My bad. I had assumed all brakes put sufficient torque on the wheel to skid. Apparently quite a few do not. Why does the Hayes win that test when the Hope has the faster braking performance? 1.6s vs 2.4s can make the difference between hitting that deer, or missing ;-) To slow down from 30 km/h...

You'd think brake performance would entirely depend on the brake pad composition. Unless something is seriously wrong with the hand lever setup and the master cylinder to brake caliper piston size ratio, and it's hard to imagine how a bike manufacturer could screw that up, except by willfully...

Just a thought: if you are mostly after some variation in hand position, you could add one of the Ergon grips to a flat or mostly flat handlebar (the GP5 allows a variety of orientations without having to compromise your main handlebar position, for example you can add a high grip position...

'Class 4 roads' are presumably Vermont class 4, not California class IV?

Carrying a 1 kWh battery is like running around with half a cup of gasoline! Except it hurts a lot more when you drop it on your foot.

I've always said that elevators are the devil's invention! Humans are simply not made to fly straight up!

At less than 1000 miles on chain and cassette? This seems like an overly simple explanation. (Sorry, couldn't resist the pun.)

But there might be a 'return to start' feature. It would at least point you in the right direction.

So, is this SRAM Eagle Transmission better (by that I mean, faster & smoother under full power) than Shimano Hyperglide+? I have a Hyperglide cassette, not Hyperglide+, and I thought that already reduced the crunch (when shifting under load) considerably compared to what I remember from...

Right. Torque is force times lever arm (Newton times meter), and the lever arm is given by your rear wheel (assuming that is the driven wheel) radius. The tractive force is the force shoving your bike forward; if that is up an incline (hill), then it needs to be at least as large as the force of...

The 250W limit is for 'continuous output power'. From what I have read, most 'name-brand' motors listed for Europe as '250W' can put out 2-3 times as much.

The torque computation is very straightforward: the tractive effort that pushes the bike uphill has to be at least as large as the weight force pushing you downhill. In your example: 100kg (you+bike) *10N/kg (earth gravity)*0.05(5% hill) = 50 N tractive force. To compute the torque needed at the...