I don't see how principles would come into it to be honest?
I bought mine knowing that I did not want the Halfords mechanics to put it together, and that it was likely to require a fair degree of fettling to get right.
I suspect that the majority of people who would spend £900 on a bike from Halfords have gone there knowing exactly what they are after, so are fairly likely to be able to wave a spanner at it, or take it somewhere that someone qualified to do so can fettle for them.
I don't see how principles would come into it to be honest?
I bought mine knowing that I did not want the Halfords mechanics to put it together, and that it was likely to require a fair degree of fettling to get right.
I suspect that the majority of people who would spend £900 on a bike from Halfords have gone there knowing exactly what they are after, so are fairly likely to be able to wave a spanner at it, or take it somewhere that someone qualified to do so can fettle for them.