This bike has been a tonne of fun! Was purchased about 2 months ago for my 14 and 12 year old as their 2nd dirt riding machine. They are 5' 6" and 5' 7" and it fits them great...not too powerful, not too gutless and the kids are just getting used to the different weight, center of gravity, and charging process. The battery lasts for a few hours of solid riding...definitely longer than I thought it would last. Charging is pretty quick and easy. No rattles or looseness on any of the parts so far...chain was at the right tension right off the bat so will have to check on that in a few rides...throttle is smooth...brakes are good. Everything seems very solid and well made, I can ride it no problem 6' 1", 195lbs. One thing I didn't know before I got on the first time was you need to touch a magnet (on the key) to a little part on the handle bars to take the bike out of "park" or enable the throttle.
Putting the bike together wasn't hard, maybe 2hrs to get it all done and checked over - I did need a 2nd person to get it out of the box and the front wheel on safely. I have a couple suggestions for the biktrix team: 1) clear instructions about torque levels for the various bolts and nuts, and 2) after I washed it once there was an error on the screen and the throttle didn't want to work properly so I must have got something wet that wasn't supposed to. As it is a dirt bike, it's going to get dirty so proper washing instructions would be good. I am not sure what was throwing the error but using a blower on it cleared it up. All in all, definitely a blast to ride!