Zorge - no worries mate. I check my tyres every day and chain tension most days. Always wipe the bike down after wet rides too. Keep it covered at work with an Oxford bike cover. All helps.

Prince 666 - The good thing about tracking down the noise is that I took the bash plate off, cleaned the engine and checked all other nuts & bolts. Loctite will be used when I fit the replacement part. Also, it's good to know my dealer has the online parts manual ...but I just wish I had a copy of it, lol.