Trek Madone 5.2 56cm valuation please

[jifdave]

My father in law has asked me to sell his Trek madone 5.2 for him but i have no idea of value.

Its a circa 06/07 discovery channel full Carbon ultegra bike. It originally had a dura ace rear mech but i put ultegra on so he could have a bigger block for the hills.

It weighs just over 8kg.
anyone hazard a guess at value?

 

[Steve Malkin]

It's worth whatever you can get someone to pay for it, but I'd guess somewhere around £350 to £400.

 

[biggs682]

as per @Steve Malkin 's comments but not sure on amounts as too modern for me , but very nice also depends on how quick a sale you want