Those are exactly like the seats I just bought except mine are Fiberglass. Even the reinforcment shapes in the mold are identical. I think several companies sell these seats. I am pretty certain that Cross, NEX, and a few others are these seats exactly. Mine in fiberglass weighed 14.4 lbs each.
They are extremely comfortable. I would guess the size is equivilant to a Sparco Evo, but not as big as the Evo2.
hi, i am the owner of those seats. my freind make those seats for a japanese company. he make those seats in carbonfiber and carbon-kelvar, he also make reclinable racing seats. if you guy have anymore questions about the seats you can wirte me a e-mail at [email protected] or pm me thank you very much.