Originally Posted by
thook
thanks, andy.
it's a tig welded trek 850 antelope from the early 90's, so not lugs to screw up. and, i'm not the original owner and for sure there's no warranty to void, anymore. now, judging by the photos, the headtube has atleast 1cm of extension before the top tube and down tube joints. think it safe shaving some length off the ht would still allow the races to seat properly? i understand what you're saying by that, btw....though it hadn't even occurred to me before your mention of the issue
otoh, if a steer tube/shim idea would work (ie...nova cycles), i will blow this shaving business off entirely. heck, might just do it, anyway. i've sent three messages to the guy with the steer tube and i've not heard back from him. he's actively posting on the forum, so i would guess he knows i've messaged him. whatever, though
I tend to write my replies to also serve other readers, hence my broad range of reasons.
Do the math after measuring headset cup skirt lengths and the frame's HT reaming depths. This is only to avoid the need for a reaming/facing job from a shop/builder. This is what you're trying to avoid after all, I believe. Andy