I originally bought the veteran Abrams from e-wheels. The unicycle turned out to have a critical flaw in its programming. E-wheels reached out to me about the flaw and made sure that I was able to implement a correction when the correction didn't work e-wheels allowed me to send the product back and pick out a product of comparable value, maybe even higher value which was the kingsong s22 Eagle. All products have their states and the weaknesses in this case the product required some significant maintenance. However, it's a wheel that I love and salvaging provide me significant discounts despite me being out of warranty on batteries on a motor and I was unable to detach motor brackets, suspension sliders, and rear kickstand support they sent these products to me at a significant discount, always providing free shipping and always refunding me a portion of my purchase and Ithat was just to be nice. Have to say that they respond to me within hours of every inquiry I've ever had them. Jason is the best.!!!