Here is a replacement 16" bicycle trailer wheel from an inSTEP trailer with quick release connection. I'm not sure what all models it might fit. They aren't the prettiest due to storage conditions with some rust and paint, but they are nicely functional. Tires have good tread and the inner-tubes held air fine last I remember. I always kept them deflated a bit in storage to keep the stress off the rubber, nonetheless the rubber might be a bit hardned due to age.
Returns Accepted for this item if it's within 30 Days