Hey does the 42 not rub? I saw some videos showing and it was awfully close. I actually want the bike for a workout the motor will just make the ride faster/more fun. It would be awesome though because I could use the same bike for commute and trails. Having one bike that can do both is better than having two bikes that can only do one thing.robocam wrote: ↑Apr 10 2020 1:33amMy Frey AM1000 (Ultra) weighs 12 lbs more than my Luna Cycle X1 (M600). The X1 definitely feels lighter when lifting it and riding it. When I put a 52V battery in my otherwise stock X1, it went 28 MPH, 3 MPH faster. When I put a 42T chainring on it (definitely not too big for mountain-biking, in fact I much prefer it over the stock 32, and I only ride single-track) it went 30 MPH at 48V, so I think 33 MPH is not out-of-the-question at 52V. If you use the smallest gear in the cassette (on the X1, that gear is locked out stock), you might even hit 35 MPH.
-edit I have no doubt that you can use the m600 to hit even 40mph the motor in itself has the capacity it's the gearing and soft limits.