the ones which, for you, have disproportionate annoyance value. Me:- 1) Amber-walled tyres. I hate them! 2) Cyclists in white socks - especially a) if the socks are without any logo and pulled halfway up the calf...... grrr! 3) Clicks, creaks and squeaks at any time, but on a long journey, any of these are a short-cut to insanity! 4) Displeasing asymmetry ie only one pannier on rack. 5) If you must wear a helmet, please please wear it properly and not tilted back off the back of the head. 6) Looking down on a wobbly front wheel, even if it's only ever so slightly out of true...... aaargh! 7) Bits of old washing up liquid bottle riveted on mudguard for mudflap. Seen old CTC codgers do this....makes me want to retch and don't get me started on rolled up 'yellow' capes on top of venerable old Carradice saddlebags!