1st day after getting caught in a torrential downpour, (proberly this bikes first!) I noticed this strange effect on the rad' hoses..
At first I thought it was a faulty rad cap but as you can see the area around the cap is clean, as is the engine etc.
I havn't yet cleaned the bike so i could show that the engine etc is just covered with normal road dirt with no "rad splashes"
The water in the rad is clean anyway! I would expect it too be brown and sh*tty coloured but its clean, so i think the rain has somehow affected the hoses...
-if i wet the hose, it darkens but when it dries it goes back to its wierd "camo' markings- its a black std triumph (greyish really) hose..