Question for “one x drivetrain” (no front derailleur)

Triathlon Forum
4

This is what I use when faced with questions like this:
https://www.bikecalc.com/archives/speeds.html

at 100 rpm 50/10 will have you at 63km/h; 54/11 will have you at 61.8km/h

I prefer to factor in crank length using Sheldon’s Gain Ratio: http://yojimg.net/bike/web_tools/gearcalc.php

To the OP, I’ve done StG 70.3/Snow Canyon multiple times on a 50x33 with no issue.