Absolutely love my Merida eScultura 400 , at 60yo, I’m feeling the climbs and my Merida eScultura 400 takes the sting out of the climbs and there is only the slightest drag between 25kmh when the assist cuts out, until you get to about 28kmh, after that it feels just like a standard bike, it’s got great ergonomics so I can ride for longer, and enjoy the ride. I would recommend this bike, and it has quality components and well built.