Think of it this way...
If you were to put a 200lb man on a wagon and push him, would he be hard or easy to push? Okay, now, what if another 200lb man jumped on the cart? And then another... ???
Okay, you are pushing MORE THAT THAT
(about 640lbs) with the Burg 650!!!
She's a BEAST!!! I usually sit on her and push her around with a combination of feet and butt... on FLAT
ground... and I weigh 230lbs!!!
(To chime in... I think it's just a bit harder to push her around, especially backwards, when she's cold.)