Afternoon all. Managed to get the blade in for an annual service week after next (dealers reopening!) - Doble's in Coulsdon, I rate them highly. I'm sure it needs new pads and fluid so they're going to do a brake service and I've ordered HEL lines for them to fit. (I'm happy to do cosmetic spannering but as you can tell, I like to outsource risk haha...) BUT I've also noticed marking on the front discs - see pics. I've given it a scrape with a fingernail and it doesn't seem to budge. Anyone know what this is? On the phone I did ask how much new discs are - quoted me £460 for new discs all round (and bolts) . Hoping it doesn't need that... Bike is 2008 with c. 14k mi on it (I bought it at 11k) and I don't ride it hard but can't speak for the previous owners... All help much appreciated!