Horrible Assembly
"The cotter pins used to secure the tires are a horrible design decision. They are on the spinning axle, so it's difficult to stop rotation while also trying to manually bend the thick metal pin. This is made significantly worse by the fact that they sent pins that are way too short (see photo). They sent around 2. 25" but I think at least 3" would be needed to make the assembly smoother. Making it impossible to get any good leverage, even if it wasn't on a rotating axle. This design also makes it difficult (maybe even impossible) if you ever wanted to disassemble the unit. There had to be a better way to affix the tire to the axle. There are two other reviews giving this same feedback from almost a year ago, but they were generous and still gave 4 stars. Clearly the company has not addressed this issue. I hope the company will take this more seriously if I give it only 1 star. This product is expensive, and I expected more care to be given to the design and assembly experience. Surely there was assembly testing and I doubt this issue isn't already known to the team."