I'm new to eBikes.  I got a Rad City 5 last month, (lovin' it) and I've put about 1,200km on it.  (And as backstory, when I was much younger, I was quite an avid road biker and have 10's of thousands of km in the saddle.)

Yesterday, I was riding with a strong mostly crosswind (with some headwind) up 30km/hr.  I was trying to make up some time, so I was in PAS 5 and the bike was moving at full-assisted speed.  I got hit by a very strong crosswind gust and I experienced the most disorienting feeling - almost sickening, like a turbulence bump in a plane.  My path didn't deviate much, but it was very noticeable.  For a moment, I thought I was going down into the street.  I'm sure I tipped a good 10º or more, and I've never felt anything like it on a road bike before.

Now, I know it's related to the centripetal force - the wheels trying to maintain a straight, circular path in the face of an external push, and I'm guessing the reason I've never noticed it on a road bike is related to either (A) the more massive wheels, (B) the larger mass of the bike itself, (C) the larger mass of the whole system [bike and rider - as I'm also twice the mass I was when I was younger], (D) the velocity, or (E) some combination of the above.

I guess what I'm curious to know is... Is this a thing others have experienced on eBikes (or any bike, for that matter.)

I've only had my RadCity 5 for a few weeks, and, on just a couple of occasions ridden it almost dry.  Those rides have been about 50-55km, on mostly flat, city riding in Phoenix, AZ, with little or no wind.)

I've noticed a couple odd things and want to see if this is anyone else's experience.

• (It's been mentioned elsewhere) The battery gauge on the battery and the one on the handlebars often don't match, with the handlebar gauge being 1-2 bars lower than the indicator on the battery - until it gets to about 50%, then they seem to sync up all the time.
• The battery drain seems to be exponential.  For example, the first 15-20km only uses 10% (90% full).  By the time I'm at 30km the battery reads about 70% full.  Based on that, I would expect to be getting closer to 90km range, nonetheless, by the time I hit 50km, the battery is on it's last bar. (Note: I'm using the readings from the battery rather than from the handlebars, since... I don't know... that one should be more accurate?)

Any idea if this is typical or is this a service issue I need to take up with Rad?