£4600 ...,my whole custom build cost me only just over 5k & with that I've got a full Merida Reacto 4000 carbon frame set in size 56cm which came with CW carbon 440mm handle bars & a 380mm aero carbon seat post, full 105 12 speed hydraulic disc di2 groupset which i recently upgraded to from the mechanical Ultegra 8020 version, my rims are by Prime, 50mm carbon, the Black Edition layed in with Tpu tubes all wrapped up in 28mm Continental Gp5000s black chilli compound race tires, Specialized S-Works Romin II carbon printed saddle and last but not least PD-R8000 peddles....,think maybe that this groupset is only for show off's who has more money than sense or really for the serious bike racer.....