This was my backup chair. As a retired bicycle mechanic, I completely rebuilt it with new bearings, new tires and a complete going over so everything is in top running condition. Since my surgery was successful, I no longer need it. The brand is Top End Crossfire T6. It has an aluminum frame so its stiff and light. Only 30lbs and probably a couple pounds lighter if you remove the handles and wheelie bars. It has Spinergy Spox wheels and a fixed foot plate that is adjustable for height. The ride and performance is excellent. The wheels pop off easily so it can sit on the backseat of most vehicles. The seat cushion is 20-1/2" from the ground and is 18-1/2" wide and 19" deep.