That's a great list and my number is based off a similar paper calculation, haven't weighted it yet. I have the Spark exhaust which only saves 16lbs. Which subframe did you use that saved 5? I thought DB Holders mentioned only 3. Also, a full tank is 27lbs of gas if you subtract from the quoted 441lbs wet weight. Those three things account for most of the difference in our two numbers.
I thought about carbon wheels at one point but they only save 9 lbs for both wheels which is insane for $3k+.
A bunch of ti bolts might save 2-5 more, but that is a lot of work and expense.
Other than that, I don't know of much else to get our bikes to 2025 weight parity.
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