You could however you want to think about the cost. $900 to do so. If you buy the Rival for 2500 you're at about 3400.

The other scenario:
If you buy a 105 bike for 2k (instead of the rival for 2500) you'll save $500.
Sell the 105 groupset for 600
Sell the wheels for 150
Now you've only spent 1250 on the bike. (Or hell if you just buy the frame for cheaper...but let's not talk about that)

Spend 1800 on SRAM Red and you're at $3000
Toss your wheels on.
Now you still have $400 in your pocket for things like skewers, saddle, seatpost, etc.



You could follow my blueprint but you'd run out of areas to drop weight.
My wheels are 1350grams so 200 grams lighter than yours. You have to make that up somewhere and that's going to cost you money.
After the saddle, seatpost, seatpost clamp, skewers, handlebars...the only place you can save weight are the components.

I'm not saying it can't be done...but for the amount that you spend you may be better off just buying a better and lighter groupset.

By the way if you do figure out a cheap way of lightening the bike even more I'd like to know. I want mine down to 15.5 without breaking the bank more than I already have.

Donovan said his was at 17 w/ aksiums, rival and some cockpit upgrades.

The Ksyriums and a seatpost would drop another 300 grams, so, you'd be pretty close. A red crank and a lighter stem would net another 80.

Really, though, if you're fine with getting close, it should be quite do-able with rival. Otherwise, the 300g difference between the red group and rival really starts paying for itself, especially if you're willing to take the time necessary to sell the original group that came with the bike.

Yeah, I guess when I really start getting the disease I could splurge for Red. Or just buy a used CAAD10 down the road with Red or something on it and switch the groups. yeah, the 16lb isn't some end all super necessary number, if I could get to 16lbs without pedals or cages, I'd be satisfied. Hopefully next year's colors are different enough to provide a better selection in frames as well

That's how I measured mine. That's like saying "my girlfriend is skinny...just don't look at her ankles"

Haha alright. I'll keep the pedals then

Ok, I've edited the spreadsheet, and I've left myself about a half a pound to spare (hopefully covering the fudge factor provided by the manufacturers)

https://docs.google.com/spreadsheet/ccc ... 0hXZTIzNnc" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;

I'm still missing a few things (headset stuff, are my totals accurate? Am I leaving out anything?)

This looks like I could make a Supersix Rival with Ksyrium Elites get to 16lbs for only an extra ~$400.

Thanks again everyone for your input. Let me know if I'm overlooking anything.