More component weights

I "upgraded" my Scott with a full Shimano 5800 11 speed groupset recently. As I had most of the bike in bits I took the opportunity to weigh some parts again and collate the results here. I also reverted my Giant back to "full winter mode" and weighed some of the parts again, so this table is a bit of a mismatch of data

Component	Weight	Comment
	(kg)
FSA Saddle	0.32	Original saddle from my Focus
Selle Royal saddle	0.29	Ties up with comments from other people who have bought this saddle (Offer from Edinburgh Cycle Collective at £10)
105 5700 Front Derailleur	0.07	Weighed Before
105 5700 Rear Derailleur	0.23	Weighed Before
FSA Vero LH Crank (Non Drive Side)	0.23	Square Taper
FSA Vero  RH Crank Compact (Drive Side)	0.44	Square Taper
Shimano 105 5700 Crank (Non Drive Side)	0.19	Lighter than the FSA Vero which I think would be expected!!
Shimano 105 5700 Compact Crank (Drive Side)	0.54	Heavier than the FSA Vero!! Although does include the centre shaft which the Vero (square taper) does not need. Whether that’s 100g I am not sure
Shimano 105 5800 Compact Crank (Drive Side)	0.55	Heavier in weight compared to the previous model (within capability of my scales)
Shimano SPD MTB pedals	0.4
Stock Giant Front wheel/Continental GatorSkin tyre/tube/skewer	1.94
Stock Giant rear wheel/ Continental GatorSkin tyre/tube/skewer/Tiagra cassette 28-12	2.09	This felt heavier than this so I don't believe my scales although I got 3 repeat readings at this weight
Shimano Ultegra Front Wheel/ Continental GP 4000SII tyre/tube/skewer	1.10	Much lighter than the entry level Giant wheel as I'd hope
Shimano Ultegra Rear Wheel/ Continental GP 4000SII tyre/tube/skewer Ultegra 12-30 Cassette	1.80	Whilst lighter than the entry level Giant wheel not to the same extent as the front wheels
Shimano Ultegra Skewer	0.06	Borderline if my scales can measure this reliably
Shimano Ultegra Rear Wheel/ Continental GP 4000SII tyre/tube/skewer (no cassette)	1.30	I don’t believe that an Ultegra 12-30 cassette weighs 500g
Rear Brake (Tektro)	0.13
Front Brake (Tektro)	0.13
Front Brake Shimano 105 5700	0.18	How can this be heavier than the Tektro?
Rear Brake Shimano 105 5700	0.18	How can this be heavier than the Tektro?
Shimano 105 5700 Shifter	0.22	Left and Right weigh the same