I was generally told to plan on the following cost split 1/4 frame 1/4 wheels 1/4 groupset 1/4 fork and finishing kit
Sounds like a load of old cobblers to me: were they trying to flog you an upgrade? :0
I don't see why the cost of one element would dictate the cost of another?
It was just to give an approximate order of magnitude to help avoid putting Chris King headset and carbon wheels on a Create fixeh biek.
@Scilly.Suffolk started
London Fixed Gear and Single-Speed is a community of fixed gear and single-speed cyclists.
I was generally told to plan on the following cost split
1/4 frame
1/4 wheels
1/4 groupset
1/4 fork and finishing kit