600 Watts might not be much for a Hub Motor but for a Mid Motor it's very substantial.
While speaking of power the unit that is used to measure the power output of an electric e bike motor is Nm .
That's the Beauty of those gay European 250w Girlie Motors the use half the electric charge while easily keeping up with a 750 watts Hub Motor and on top of that the most popular Mid Motor from Bosch has an estimated Lifetime of 50,000.00 km/h.
The main reason I went for a Mid Motor when I started in E Bikes is a very simple one.
If I am on a 2 wheel Bike that has a Throttle, I can't stop comparing it with the other Bikes I owned with Throttle from Dirt Bike to Touring Bikes and it doesn't even come close.
That's why I went for an actual Bicycle Style E Bike where you have to Paddle to get moving and guess what ? Non of the Bicycles I owned is able to Compare with the E Bike .
Also all Competitions in Mountain E Bikes , Down Hill and what's so ever use Mid Motors . Why is that ?