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?"

Let's start with the biggest advantage of the DX Racer: the comfort of this chair is unquestionable. It is really very comfortable! When I sat down for the first time, the chair really gave me an experience where I felt as if my tight back had loosened up. The DXRacer is adjustable in many different directions, making it easy to find the best sitting position.

Goood