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  • Quick questions here that some of you might hopefully be able to answer to. Recently changed BB (due to damaged thread on the frame BB shell) and crankset and having different issues.

    1) switched to threadless bottom bracket like this one because of damaged threads as explained. However, the BB has been becoming loose during rides 2 or 3 times ; when re-tightening it, I come to the point that the opposite side of the BB of which I am tightening is turning on itself (no more tightening, as not enough pressure on frame to hold it in position if it makes sens), does someone has a solution for that? Do I need to buy a second BB tool to hold the opposite side while tightening? Is anyone using this kind of BB and running fixed (and facing the same kind of problem)?

    3) changed crankset for Shimano 105 Golden arrow FC-S125, but I have a significant difference between crank arms and chainstays distance: the nds crank arm is very close to the chainstay, while the ds crank arm is much more far from the chainstay (very noticeable when looking). Is it normal as this crankset was supposedly design for asymmetrical BB if such thing existed, is the frame maybe bent (and how to check it), etc. Does someone has already faced this issue? Should I try to find a recent crankset and try it on just to compare with crank arms distances with chainstays? What could be the consequences of such an asymmetry? Could this be linked to problem 1) and cause the BB loosening?

    Thanks for the potential help

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