I weigh 185-190 geared up and demoed an SL Expert 21, and did a 25.5/2633' 2:21 moving time on my normal trails and I was down to the last red bar with about 4 miles flat back to the car. All the climbing was done back to the car and it was my first ever Ebike ride, so I didn't know what to expect. I did the steepest climbs in Turbo to see what the bike would do and for me the SL is more than enough bike. I'm in pretty good shape, but nursing a leg/muscle issue, so trying to take my pedaling a bit easy and I was impressed by this bike on the ups, but also the tech/tight switchbacks. Now I have SL fever.Ok, good, was the power on ? LOL.