Up for grabs as my new chair is on order! 15” x 15” Ultra-Lightweight Aluminum RGK Sub4 this chair is extremely lightweight (4kg). Has a fixed frame with carbon fendered side guards, 4” frog leg casters, Brand New 25” (559) Blue Spoke Spinergy Carbon Blades w/ Titanium handrims (worth over $2500 alone). Will include Batec mount if needed. Will sell the chair cheaper without the spinergies. Text me for more info!