Bottom bracket woes,

in Workshop
I have a felt Z5 with a press fit bb , never again !!
Lots of problems with it , eventually my lbs fitted a wheels manufacturing set up , all ok for 8 months then creak rattle and roll £105 to have it fitted , tried some cheaper bearing £50 , lasted 4 months , just had better bearings fitted £65 noticed yesterday a little play , went back to lbs, they had a look , and told me that the LHS of the axle was worn and was causing the play. Now need a new chain set .
it is a 105 11 speed . Does this happen ?? why does it happen thought axles were tougher than this ,.
Wish I could go back to running , no where near the expense of cycling
regards
ILG
Lots of problems with it , eventually my lbs fitted a wheels manufacturing set up , all ok for 8 months then creak rattle and roll £105 to have it fitted , tried some cheaper bearing £50 , lasted 4 months , just had better bearings fitted £65 noticed yesterday a little play , went back to lbs, they had a look , and told me that the LHS of the axle was worn and was causing the play. Now need a new chain set .
it is a 105 11 speed . Does this happen ?? why does it happen thought axles were tougher than this ,.
Wish I could go back to running , no where near the expense of cycling
regards
ILG
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Posts
What can be done about it?
Just changed a 105 from my other bike onto the felt and all is tight as a drum.
But I wonder for how long ?
I can not keep changing chain sets ,
I have been watching Hambini on youtube, makes me think the bearing lines a re out of parallel causing the wear on the axle .
Thought the wheels manufacturing outboard bb would help , not so sure now.
regards
ILG
Have these bb cups been loctited in place.