Bought this incredible 56cm 2015 Cervelo R5 online at the end of October. Relied on poor advice from a bike fitter and ended up with a bike that's a fraction too big for me. 
Ridden twice, but just can't get it to fit properly.
Anyhow, my expensive mistake is your winfall. You'll pay £5200 new, but I'm only asking £3690 (though I'm happy to consider offers close to the pin) ... It's gotta go!
View more photoshere.
Happy to arrange viewings in East London and ship anywhere in the UK.
Also, I'm the original purchaser and am happy to honour the warranty for the purchaser in the event it's ever required.
Full spec
Fork :: Cervélo All-Carbon, Tapered R5 Fork
Headset :: FSA IS2 1-1/8 x 1-3/8"
Seatpost :: FSA K-Force
Rear Derailleur :: Shimano Dura-Ace 9000 11 spd
Front Derailleur :: Shimano Dura-Ace 9000 11 spd
Shifters :: Shimano Dura-Ace 9000 11 spd
Brake Calipers :: Shimano Dura-Ace 9000
Bottom Bracket :: Rotor PF-30
Crankset :: Rotor 3D+ BBright™ 52/36
Handlebar :: FSA K-Force Compact
Stem :: FSA OS-99 CSI
Saddle :: fi’zi:k Antares
Cassette :: Shimano Dura-Ace 9000 11 spd 11-25
Chain :: Shimano HG900 11 spd
Wheels :: HED Ardennes Plus LT
Tires :: Continental Grand Prix 180 tpi, 700x25c