There's less than 100g difference between a triple and a double.
A triple has that extra ring, 5 extra bolts, more material on the spider...
So the difference between a compact and a double must be - ooh 15-20g ?
Ah yes, here we are...
http://www.ribblecycles.co.uk/Produ...rodPerPage=999&CatID=65&BCat=1,65&RootCatID=1
- Ultegra 6603 triple 922g
- Ultegra 6600 double 833g
- Ultegra 6650 compact 848g
The compact is heavier than the double !!
- Stronglight Impact 2 triple 725g
- Stronglight Impact 2 double 675g
- Stronglight Impact 2 compact 675g
Compact & double same weight