RecordAceFromNew
Swinging Member
- Location
- West London
Probably a few hundred grams, if that, not a lot. 105 is epic in weight vs top end groupsets though! Half a kilo or something.
If one wants light, Campag and Sram equivalence are lighter.
However, if there is a limited budget, higher groupset is generally the wrong (albeit most popular

Just my 2p.