First post here. Thought I'd introduce myself and show off my recent build!
My main objective for this build was to keep weight down but keep sacrifices to a minimum. My old r5 was built up lighter, but it didn't stop as well, didn't shift as well, didn't handle as well, made more noise, and required a bit more TLC to keep running smooth. So this time around, the bike is a bit porky by comparison (about 2.5kg heavier), but still feels fantastic. I wanted to keep clinchers for convenience, normal brakes and cables, padded saddle that I can spend 150 miles on, a cassette I can climb up walls with, etc etc.
I absolutely adore this frame. I had a 2012 R5 and it was certainly no slouch either. This feels about the same to me. I do miss the external cable routing of the older frame. The new frame is a bit heavier overall but I think it's warranted, better FD tab, nicer paint, supposedly some areas stiffened. Fork is lighter than the old though so that may cancel things out a bit. I'm usually ~125-135lb (56-61kg) so I can't really offer much in the way of stiffness.
The biggest influence for me updating/updating frames from the 2012 was vastly increased tire clearance in the rear. My old frame didn't really fit any tire if it measured greater than 24mm when inflated on a wider clincher rim. This new frame clears challenge strada pro's with no problem (measure 28mm when inflated), which I'm thrilled about. May seem like a silly reason, but I think tires are easily the most underestimated component of a bicycle.
Side note: 2015 Super Record grouppo is a huge improvement when compared to the already fantastic 2014 and before generations. If you're considering updating, I would recommend, there is a tangible difference in shift quality. New stuff has a very positive feel.
-2015 Cervelo R5 Size 51cm Frame: 773g (with all hardware/guides)
-2015 Cervelo R5 Fork (uncut): 321g
-2015 Campagnolo Super Record Shifters (w/ cables and hoods): 376g
-2015 Campagnolo Super Record Rear Dérailleur: 165g
-2015 Campagnolo Super Record Front Dérailleur: 71g
-2014 Campagnolo Super Record Brakeset: 280g
-2015 Campagnolo Super Record 11 Cassette (11-29t): 212g (with lockring)
-2014 Campagnolo Record 11 Chain (uncut with link): 244g
-2014 Campagnolo Super Record Titanium Crankset 172.5mm (w/ bearings only): 443g
-Rotor Q-Rings 50/35 110/113bcd non-aero: 146g (pair)
-BBinfinite Bottom Bracket: (BBright-> Ultra Torque) 97g (no bearings)
-Easton EC90 SLX3 44cm Handlebars: 209g
-Ritchey C260 Alloy 120mm Stem: 115g
-Ritchey Superlogic Carbon Seatpost 27.2mm x 300mm x 25mm SB: 153g
-Selle San Marco Zoncolan Carbon FX Saddle: 154g
-Speedplay Zero Ti Pedals (pair): 165g
-K-Edge Chain Catcher: 15g
-Arundel Mandible Carbon Bottle Cages (pair): 54g
-Wheel set: 1216g
-Tires: Challenge Strada Pro Open 25mm (28mm when mounted) 250g/each
-Tubes: Generic light tubes ~75g (Forte, Nashbar, Cheng-Shin - whatever is on sale)
Old Bike: Very much the same, not in a bad way either!