Originally Posted by
joejack951
The easy answer to your question comes from the installation specs: your fork should be 27-45 mm longer than your headtube. So in your case (and assuming you meant headtube not steerer tube on your frame), you’ll want a steerer tube that’s 197-215 mm long. Given that you have the option, I’d say shoot for 210 mm plus or minus a few.
Since you asked, the stack height of the lower cup is 12.4 mm and the upper is 14.6 mm but those numbers don’t translate into anything useful for gauging fork length given the design. It does give you an idea of how much adjustment you’ll have for your threadless stem, though.
Oh, headtube of course, my bad, thanks for the swift reply. Thought I'd seen the figures somewhere when watching the video a few days ago but couldn't find back where it was.
Since the fork is this Crust's Lightning Bolt one (can't post links yet with under 10 posts) i'll go with the 202mm version then. (Next longer would be 232mm).
Now if only those Nitto tall stack stems wouldn't be quite so scarce.