WorryFree Gadgets Heavy Duty Hovercart Attachment with Shock Absorber & Pneumatic Tires for Off-Road Go Karting - Universal Height Adjustment - Perfect for Backyard Racing, Trail Adventures & Off-Road Fun

We now have 4 different seats like this from 3 different companies. We bought this one specifically for the rear shocks and the bigger "off road" air tire. Everything about it is heavy duty except the quality of the front caster bearings. On the first ride, as soon s my daughter started moving it wobbles and shakes all over the place. At full speed, it is unsafe and unridable. The issue is with the bearings in bracket of the front wheel. It is machine pressed and crimped but too loose and has so much play that I can almost twist it to the point of removing the ball bearings by hand.Again, we have 3 others that do not have this issue and it is not a normal problem.I'm not returning it because my daughter otherwise loves it, but I am going to have to go to the local hardware store and buy a new front caster to swap it out with. Luckily it has a standard bolt pattern sold at Lowes.Got the cart for myself and as soon as you go fast the front wheel shakes I got 2 carts one for me and my boyfriend and both wheels shake like the wheel is going to fall off when you go fast not worth the money95% of the time, the wheels works just fine. The other 5%, the front wheels seems to wobble at full speed. The cart will not flip over or anything drastic, its just troubling seeing the front wheel wobble when your kid is on it. Putting the peices together isnt as easy as suggested. It took some time as the bolts and nuts were hard and in tight places for assembly. Overall, a good product and my kids love it.My granddaughter loves this. It allows her to ride when it is a bit icy. Very well madeArrived with bent wheel. Welding on one of the handles is also off. These two things combined are making it difficult to steer. Disappointed kid on ChristmasFront wheel vibrates uncontrollably!!! Kart starts to bounce and feels like front wheel is coming off. Poor quality on front wheel, I tightened all nuts and bolts but the wheel housing is not designed for speeds over 3 MPH—garbage!!!! Now my son can’t take kart on trip and have to wait..Fell apart stay 3