Hi this was the most expensive wheelchair we could buy for my grandpa, it was over 3000$. He was only able to use it for under a year. And now has one that's been special made for him. It's OBO. We wanted to just donate it but we are really broke right now. I don't know that much about wheelchairs but I'll tell you what is says. It's a HELIO A7 , Whitmyer, JAY J3. Its super easy to put together and take apart. The tires are NewTon. I sat it in and it's really comfortable. If your interested please text me , I don't check my email often.