Hi! I'm from New York and I'm thinking about buying an e-bike. I like cycling, and currently, I'm riding a hybrid bike. But since I face some issues with my knees, I think switching to an e-bike would be a wise decision.
Welcome aboard! You'll get good help here.
My ebike's a real knee-saver. It has both pedal-assist and a throttle, and I wouldn't part with either one. Many members don't like throttles, but if you have bum knees, definitely worth considering.
For example, my own knees hate the low-cadence, high-torque regime in standing starts — especially when I fail to downshift enough beforehand. (Not all stops are planned.) But 1 second of throttle off the line, and poof, my knees are at a happy cadence.
Ditto for when I need to squirt out of trouble unexpectedly, as in traffic. Downshifting and upping the assist takes a lot more time and attention when I should be accelerating and watching the cars and pedestrians instead. In this regard, the throttle's also a valuable safety feature.
Otherwise, the throttle's on standby. Since I like to pedal, almost always ride in the lowest assist level using gears first, then higher assist to keep the cadence knee-friendly. Without the assist, many of the steep hills around here would simply be off-limits knee-wise.
To make the even steepest hills doable, I replaced the stock 42t chainring with a 38t, dropping my gearing to 31 to 95 gear inches. A cheap but very good move for bum knees on a heavy ebike.