Dave Mirra Boys 8048-30T 14-Inch Valens/Mirraco Bike, Neo Green/Black/Blue

I bought this for my four year old who is 40" tall. He learned to ride on a balance bike and then on a friends specialized 12" hot rock. This bike is a little large for him at the moment (not using training wheels). The bike is great for the price. My only gripe is the non adjustable seat angle. I understand the bmx seat angle, but it doesn't work for the little ones who are mostly sitting as they are just learning to ride. I had a feeling this would be an issue, but the seat post is a standard 25.4 bmx size. A replacement seat and post can easily be found. It's what I did and I felt the price on the bike was fair enough to justify the extra cost.

The non-adjustable seat is very difficult to make work for the little one. If the BMX angle seat is what you want then the quality of the seat will make you happy. The paint has faded unbelievably fast. I have a bike that started the same color that is two years old and hasn't faded as bad as this one in the two weeks that we have had it. The hand brake is cool and grips are comfy. The tires and training wheels are a good set up for a stable ride. I guess I'm just burned about the color fade mostly. It will be making its way back to the Amazon fortress.

 Assembly of the bike has been god awful. The directions are absolute dog crap. I get the bike assembled and the back tire barely spins. Trying to put this together on Christmas eve has been a total hassle. I can see myself needing to take it to a bike tech just to see what's going on with the back wheel. And the seat.... come on. I know Dave mirra was a bmx guy but what 4 or 5 year old doesn't sit on their seat. Definitely invest in an alternative seat.

The bike looks great, however the seat is terrible and can not be used by a child who wants to sit on the seat. I am actually very disappointed that the seat is permanently fixed in place and the angle cannot be adjusted. As a fix, I had to purchase a new seat and seat post and then manually cut the aftermarket seat post because it was too long to fit the bike. So do this before you build the bike the day before you give it to your child and then they hate the bike because they can't ride it...

While it looks great, the rear wheel does not spin freely. Spinning the wheel with the bike upside down the wheel will make 2-3 rotations and then stop. My son has to constantly fight with it to keep it moving. The wheels on his $40 Huffy were better than this. I didn't expect true BMX quality for $100 but I did expect more than what I got.

Great bike for the price, have to put it together but super simple. Excellent for the ages between 4 to 7 YO depending how tall is your kid.It comes with training wheels. Coaster bike (pedal brake) and also have rear hand brake.I can't complain my kid loved it since the moment he saw it.The sit is tilt to the right angle for this kind of bike.

LOOK AT THE SEAT ? It is not adjustable. The head connecting the handlebar had a stripped screw, at least there are 3 more to hold it. The paint faded a bit quickly. It's not the worst bike (after I bent the seat post) but keep looking.

My husband assembled the bike, but was unable to complete b/c the bolt to the pedal was stripped. He even purchased a different set of pedals but nothing works. I don't know who to call or what to do since this is amazon. This was supposed to be my son's big birthday surprise, but wasn't able to give to him. :(