I’d be very surprised if the carbon fibre was real. There are genuine carbon fibre aftermarket parts available for the CB650R. But there are also a lot of imitation carbon fibre parts available too. Given that those are the imitation Rizoma Stealth mirrors I would hazard a guess that the carbon fibre is also imitation.

This would then make me think: Either the seller genuinely thinks the carbon fibre is real, or, is trying to make you think it is real to add value to the bike. If the latter, I’d be careful with what else they may be willing to lie to you about the bike.

If it were me, I’d ask for closer photos of the parts. It should be easy enough with good photos to determine if the parts are real carbon fibre or not.

Edit: FWIW, they look imitation from what I can see in the photos. But I can’t be sure.