It is, but the odd bit is the fact that it’s a seat QR. Not many road bikes use those. They sold the wheel QRs as ultralight/road but I don’t ever remember the QR being sold.
Has anyone got an IRD tubular steel brake booster that they don’t want. Black and good condition ideally but not essential as I am sure I have the wherewithal to respray. Ideally not insane eBay prices!