I have an older model (~8 years) and one of the wheelbase arms broke off. DXRacer was responsive to my email question and told me which base would work with my model. If you're looking for parts, the links can be found in the FAQ question: "If my chair's warranty has expired and I need to purchase corresponding parts, what should I do?"

These chairs are incredible, and the customer service is even better! Honestly, it's the best customer support experience I've ever had. Keep up the great work!

The chair is comfortable with excellent lumbar support. The racing-style backrest offers a strong sense of support and wrap-around comfort, combining both style and comfort.