They are hard to the point of feeling more like plastic than rubber. That means a lot more vibration goes through and causes much more foot fatigue. BUT, the range is unbelievable. These squeeze out so much range out of the battery that it almost feels they somehow charge the battery when riding. The grip is also epic and control is perfect. Feel very confident when riding these. And I just love how you never have to worry about flats or pumping them up on every ride. Just throw the board on the pavement and go. I just wish they were a tad bit softer, then they'd be absolutely perfect. Maybe model 2.0? Also, these are bigger diameter compared to what I had on my board stock, so the speed is actually higher than what the remote shows. There's probably a way to adjust the settings, just haven't looked into it yet. Finally, the rims are less intricate design than the stock ones. Not a biggie, just looks a bit less impressive.