Bottom bracket length and chainline I'm considering to replace my bottom bracket. My current one is a cheap 68x115mm squared. As I'm obsessed by bike weight, there is a titanium product I'd really love to install. However, the closest available sizes are 113 and 119mm. My chainring is already close to the frame, and I'm also considering to install an oval (so sometimes larger) chainring, so I cannot install the 113mm.

So, if I install the 119mm, this will theoretically make a chainline difference of 2mm. Is this acceptable?

My transmission is 1x10. I do most of my riding on the high speeds (small sprockets), which is great for the case here (chainline closer to these sprockets). Still, I need all the 10 speeds to work ;)
I think this is fine, especially if you are using the outer sprockets most of the time.