Oct. 12, 2021, 5:50 a.m. -  boomforeal

a few thoughts: * i REALLY appreciate that trek did this (and that you covered it so thoughtfully dave) * i understand why their report didn't mention steel, but from an informational/education standpoint it is a shame as iirc as a frame material its carbon impact is proportionally even more favorable to aluminum (6x) than aluminum is to carbon (3x) * ebikes used to replace commutes by car rapidly achieve a net-carbon positive impact. those used to shred trail not so much, unless of course they are replacing/offsetting shuttle trips