Originally Posted by
rpenmanparker
The difference between that and the triple are just not significant, especially if you are willing to double shift to get to a perfect gear ratio.
Posts 11 and 20 very clearly explain the advantages, combined with less back and forth between the 50 and 34.
I do agree about 11t on cassettes, I'll take a commonly used extra cog any day of the week, and rarely get to spin out even a 50-12, and that's at 70kph.