I think he was talking about the 115 axle width? If it is too long it can cause the chain line to be off as the cain sits further away from the frame than it does at the axle.
You probably already know that, but anyway.
once rear wheel is ready, i will put 115mm to the test, check where chain line sits. if it is not alright i will get 113mm, however, anything shorter will not simply not do, at least with this chainset.
I think he was talking about the 115 axle width? If it is too long it can cause the chain line to be off as the cain sits further away from the frame than it does at the axle.
You probably already know that, but anyway.