keep it classic, dont jump on the modern-group/steel-frame band wagon, this is just a trend. the classic bits suit the frame way more and make the whole build authentic.
You've got this the wrong way round. Full-retro builds are far more of a trend than updating an older frame to use with modern components, surely?
You've got this the wrong way round. Full-retro builds are far more of a trend than updating an older frame to use with modern components, surely?