Trek Madone 4.5 C Road Bike

This has a TCT Carbon frame and Bontrager Race Lite Carbon forks.
Both front and rear derailleurs are Shimano 105, as are the 20 speed STI shifters.
It also has a Shimano R-600 crankset, with double 34/50 tooth chainrings, and a Shimano 105, 10 speed cassette, with a 12-27 tooth range.
Both front and rear brakes are Shimano Tiagra, operated by Shimano 105 STI brake levers.