hi colin,
if the star nut starts to slip cant you just knock it out and fit another?
its only to preload the headset whilst you tighter up the stem onto the steerer isnt it - then it can slip all it likes??
many thanks for the spreadsheet by the way its a work of art (as far as excel goes!) must have taken some time that appreciate you sharing
looking forward to some pics when built up!
You probably could strak but I hate faffing around with them. From an engineering point of view it seems like they are a cheap, last minute bodge job, and the fact that its cheap method of setting up your headset is probably the only reason they've been around so long. It's just a case of preferance - kinda like sram/shimano, cones/cartridge bearings, clip-ins/flatties .... etc.
Your welcome to the spreadsheet. It took a heck of a lot of research to work it out! But a lot of the decisions were made using MTBRider forum advice so I'm just another link in the mtber chain, passing on the info. Use it to good effect and enlighten someone else someday!
Got a serious lack of time atm but I promise piccys of the meta will be on here before Christmas. Looking at all the parts in boxes sitting in the corner is killing me!
Take it easy
Colin