I had been looking for an aluminum framset to build up as foul weather/winter bike and about a month ago I found a "new old stock" 2010 S1 in my size. I built it up and have been riding it for the last 3 weeks or so. It's not as smooth or light as my Cervelo R5 but it's not too rough and weighs 6.30kg (13.86lbs.) as pictured below. I'd like to replace the cables with Alligator I-links in the future and perhaps make some other changes here and there. However, it is a bad weather bike so I ought to show some restraint. Here are the build specs:
Brakes: SRAM Red "black"
Brake/shift levers: SRAM Red "black"
FD: SRAM Red "black"
RD: SRAM Red "black"
Cassette: SRAM Red "black"
Crankset: SRAM Red "black"
BB: SRAM Red GXP (ceramic bearings)
Chain: SRAM 1091R
Pedals: Speedplay X-2 w/ Ward Ti Spindles, Al bowties and Ti bolts
Housing: SRAM (Gore Ride-On shift)
Bar Tape: Lizard Skins DSP 1.8
Bars: Ritchey WCS Logic II 42cm
Stem: Ritchey WCS 4-Axis 120mm (borrowed from one of my 'cross bikes while waiting for Ritchey WCS C-260)
Seatpost: Cervelo Carbon Aero
Saddle: Selle Italia SLR Ti rails
Wheels: Reynolds DV46 T UL (removed stickers)
Tires: Vittoria Corsa EVO CX (tubular)
Bottle Cages: Arundel Mandible Oil Slick
Headset: FSA IS-2
Top Cap: Extralite w/ Al bolt
Spacers: Generic Carbon (for now)
Expander: Extralite Ultrastar 2