would it be worth it to do the full drivetrain? I figure getting rid of the front derailleur and shifter alone would be worth it.Full drivetrain? I'm not sure but cassette is about 100g lighter on XX1
Best bang for the buck is to reuse crank arms, go spiderless front chainring, wolftooth etc, drop the front derailer, front derailer shifter, crank spider, big ring, and supporting hardware. Install the 42 or 40 tooth if you need the gear range. Good for quite a bit of weight for $100 or $200 if you go rear cog in tandem. Dropped X7 components are probably 2lbs +. XX1 would be slightly less with new cassette.I tried running some searches and couldn't find much, but I have a stock 2013 Scott Scale 930 and I thinking about trying to drop a bit of weight.
Approx how much weight could I save by going to XX1 vs. the X7/X9 setup?