Guessing they go with whatever they can get the cheapest bulk deal on. Not a brand hater. Think I’ve found some pretty nice tires in all the major brands except Michelin this will be my first set. Seems you mostly get what you pay for. Hell I ended up with Shinkos in a pinch once and to be honest they were pretty nice. Sticky, good in wet, wore well but sidewalls Seemed especially soft when loaded for a trip. Recommend tire pressure was crazy high due to soft sidewall.