Originally Posted by
roka
That's been my experience too. But I'll admit that I'm not sure why. To me it Intuitively seems like the opposite would be true as there's a lot more tension being put on my SS chain while starting to move and going up hill.
An 1/8" cog is a hair less than 3mm wide. An 11 speed cog is 1.3mm wide.
The psi exerted by the chain onto the cogs is less than half.
Assuming an equally clean and lubricated situation with similar quality components, it should last at least twice as long.