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@Acliff
Vision track cranks are approx: 818g.
Current rotor BSA30 BB is 89g.
Total: 907g
DA7710 is 505g, + +20g for stages + 54g chainring + 15g chainring bolts = 594g
DA7700 adjustable BB 173g
total: 767g
If I can't figure out the 7700 BB, then the ultegra 6500 BB I have is approx 240g, for a total of 834g, which is basically just the difference in chainring size.
Will confirm on the scales when I get a chance.