Review on Enhanced Quad Roller Skate Wheels - Vibrant LED Light Up Replacement Wheels for Firefly by Martin Alvarez

These bikes have their pros and cons. I'll start with a few things I didn't like: 1) they don't glow like the colors in the pictures - they're just red and green 2) the battery in the middle of the wheelbarrow takes up so much space that you don't tighten the nuts be able to tighten enough so that they don't sit too tight on the bearings and leave no room for the wheels to turn 3) almost all of the labels came off the first or second time I rolled them 4) Poor quality bearings. Liked: 1) They are perfect hybrid bikes! I ride them on every surface and I love how they feel (I figured out the whole "crazy" situation once). I'm driving on a paved road and smooth cement. I have no problem rolling over cracks and debris. Durometer (hardness) is perfect! And the 58mm is perfect for dance footwork! To sum it up: This is not the worst steering wheel and I will definitely use it until it eventually stops glowing. But I wouldn't buy them again mainly because of the poor fit and all the trouble I had to change nuts and bearings to make them work satisfactorily. Hope that helps!