Shimano 7000 105, Ultegra 6800, Dura Ace 9000 Chainset compared. They're all compact cranks with 34 50 chainrings. Here's a detailed look at their weights and close up of their build. Feel free to subscribe to my channel, it's free! Thank you for watching and feel free to leave any questions or comments in the comments section below.

Table of contents:
0:00 Intro & Manufacture Specs
2:14 105 ultegra dura ace small ring
3:27 Bolt spacing measurements
5:27 bolts compared
6:05 inner rings, 33g, 33g, 26g
6:37 bolts weighed 11.9g, 5.4g, 5.4g
7:18 Bolt installation indentation
8:11 105 inner ring on ultegra crank
9:13 bolts cross compatible
9:41 105 & ultegra inner ring on dura ace crank
11:10 50T chainrings compared, 144g, 112g, 101g
13:20 right crankarms compared, 323g, 332g, 310g
14:28 left crankarm w/bolts, 193g, 198g, 175g
15:11 compared with power meters, 186g da9000, 196g da7800
15:42 inner chainring look, chain catcher thoughts
18:30 mix match bolts
19:24 Crank endcaps 5.2g, 3.4g, 4.3g (metal)
20:18 crankset weights (no endcap), 704g, 681g, 621g
21:10 Conclusion, please subscribe for free if you like