well not really my own rules. rules that i set down for other people. you know, the people that want to make changes to their bikes or gear the night before racing? yeah, you know who you are. changing saddles or gear cables or chains the night before a big event. it usually spells disaster.
never, ever do that. change things a week before, make sure you do some shake down rides, and leave the stuff alone!
eh, not me. i'll change stuff. i might even change it back. but if the idea hits me to change something, i MUST do it. call it OCD, call it insanity, call it dementia. if i think i should put on new parts or different parts before a race and i don't do it, it will drive me crazy!!! granted, i've been a self-taught bicycle mechanic since 1975 or so, and a pretty passable one since my buddy todd taught me the right way to do things since 1981 or so. given the time that i've been doing it, i feel pretty confident that what i do change will work solidly on race day.
so tonight i changed cranks, chain, and handlebars on the bike i intend to race on sunday. stupid? absolutely!
but i had to do it. my brain said so.