Originally Posted by
Piff
Thank you for offering to tell me how your experimentation goes, greatly appreciated
Update here:
Bike Forums - View Single Post - Converting Trek FX2 to 1x
Summary: I ordered a Tange Seiki LN-3922 (made in Japan!) bottom bracket with a spindle length of 107 mm to replace the cheap stock VP bottom bracket with a 121.5 mm spindle length in order to (theoretically) move the crank arm and chain ring 7.25 mm inward.
Tange LN-3922 Bottom Bracket | - Ben's Cycle (benscycle.com)
The same bottom bracket is also available with a 115.5 spindle length, so hope one of the two works out for
Piff .