I'm more concerned about grip levels than originality, but I'm not a really sporty rider.
It's currently got new looking unknown brand tyres fitted by the previous owner. The rear seems alright but I don't have much faith in the front, the bike also tries to follow any join or paint lines.
Whatever pads are fitted aren't great, or maybe I'm expecting too much from the brakes - they require a fair bit of pressure on the leaver and fade quite easily, also squeal when hot.
Cheers
Allan