Originally Posted by
Wiggles_dad
Keep in mind Heine is selling cranks so his analysis can be a bit self-promoting. Also, he never mentions the difficulty of finding a front derailleur capable of shifting the half-step gearing he advocates.
Yes Shimano sells 50/39/30 triples but the current 105 triple (FC-5700) has a 74 mm bolt circle for the granny so you can fit as small as a 24T granny ring in place of the 30. That will give a plenty low gear for almost any rider if combined with a wide enough range cassette.