175mm crank arms with pinch bolts weigh 606g.
22t granny ring is made of steel and weighs 20g.
32t middle ring is steel and weighs 42g:
44t big ring is made from aluminium and weighs 81g:
Bottom bracket - bearing cups, spacers etc. total 99g:
Crank bolts and bearing preload bolt total 21g:
Spacer by itself - 5g:
Total weight for Shimano XT M760 crankset with 44-32-22 tooth combo and 175mm long crank-arms is 869g.
|Bottom bracket assembly||99g|
|Crank bolts and bearing preload bolt||21g|