I posted a similar request in another biking forum, but this one seems more appropriate for advice about weight reduction.
My goal is to get the bike including pedals under 17lbs.
The bike is a 52cm 2012 CAAD10 5 which is currently pretty much stock - 105 derailleurs, 105 shifters, Tektro Brakes, Gossamer FSA compact crankset, RS10 wheels. I also have a women's CAAD10 with which I can switch parts to improve the men's CAAD10 that I'll be keeping. The women's version (I think 2012 too) comes with Sram Rival derailleurs, Sram Rival Shifters, Sram brakes, Sram Force compact Crankset and the same RS10 wheels.
1) It seems the consensus is get rid of the stock FSA crankset - so I'm assuming that I can simply switch cranksets between the bikes as they both have BB30 bottom brackets?
2) Would switching from 105 to Rival be an upgrade and/or a significant weight reduction?
3) How about the brakes - worth switching? To make things more interesting I have a set of older ultegra brakes (circa 2007) that I could also use.
4) Wheelset: I'm leaning towards an Ultegra 6800 wheelset - no rush on this so I'm open to other suggestions for a sub $300 wheelset (I don't mind used).
5) Besides the wheelset (apparent 200g reduction), what other low cost (under $100) upgrades would shave off some weight - Are there any glaringly heavy components on the stock CAAD10 bikes - eg stem, handlebar, seatpost, saddle?
My inspiration for this project was a post I saw a while ago on this forum from a user who upgraded his same model black CAAD10 with gumwalls which looked outstanding to me. Although, I'm not going for the large scale weight reduction that user achieved, I would like to get a similar overall look. I've already ordered Veloflex gumwalls to replace the green Pro4s on the bike.
The first pic below is exactly how I purchased the bike (weight 19.00lbs). The following picture is after I removed the pie disc, pedals, reflector, some type of accessory collar from seatpost, and reversed the stem (weight 17.91lbs). When I dial in the fit, I'll likely cut the steerer tube and seatpost.