From their chatbot: To find the right tires that fit properly, it's important to consider the Bead Width, which is the distance between the inner parts of the rim flange. If the rim is too wide or too narrow, the tire may not fit properly.
Bead width is not listed in descriptions of products on website
Customer service response when asking: All the details regarding our parts are available on our product pages. If you require additional information not listed, it may be due to limitations in the information provided to us or because certain details are proprietary to the manufacturer.
Horrible return policy with restocking fee and chargeback on shipping