Originally Posted by
HTupolev
Define "a gear."
Assuming you're running standard Shimano cassettes, your old bike had 3 ratios that were lower than your current granny gear (34/28, 34/25, and 34/23).
I doubt that it actually had those ratios. It looks like you divided 34 by 22, 23, 24, 25, 26, 27, and 28... but the cogs that your cassette actually had were likely 11-12-13-14-15-17-19-21-23-25-28.
Hahaha Der yea that makes way more sense. Problem with using those charts and calculators since it just uses all of them vs the select ones in the cog. I was comparing 39 with (all) 11-25 vs 34 with (all) 11-28. Phew. Although 1.56 vs 1.21 is a huge swing, right?