Image of Trek Domane 4.9

Trek Domane 4-series Road Bikes Review

Trek’s Domane 4-Series combine endurance race performance with surprising affordability, which is all the more pronounced given that all of the bikes in this range use carbon frames for strength and lightness. Equipment levels and price vary significantly, so here is a look at the main models on offer for 2014.

Trek Domane 4.0

The 4.0 Domane is the entry-level bike in the 4-series but there’s very little compromise, and at £1,500 it’s very affordable. The carbon frame of the Domane 4.0 features a number of IsoSpeed features, which is basically Trek’s comfort-tuned technology that is designed to cut down on vibration and impacts to keep the rider in a comfortable, stable position for as long as they are in the saddle. The fork is similarly endowed and the added compliance it offers could make a difference in an endurance competition.

The Shimano Tiagra shifters, derailleurs, crank and cassette ensure that the drivetrain is a smooth operator, while the wide bottom bracket helps you to turn your expended energy into momentum over difficult surfaces.

Bontrager provide the rims and the R1 Hard-Case Lite tyres.

Trek Domane 4.0 Specifications 2014
Front Derailleur:Shimano TiagraFront Fork:Trek IsoSpeed carbon
Rear Derailleur:Shimano TiagraRear Shock:N/A
Shifters:Shimano Tiagra STIBrakes:Alloy pivot brakes
Gears:10 speedRims:Bontrager
Chainring:50/34Tyres:Bontrager R1 Hard-Case Lite
Cassette:12-30Weight:N/A

Trek Domane 4.3

Like its cheaper sibling the Domane 4.3 comes with a 400 Series OCLV Carbon frame and fork, which is compatible with DuoTrap sensing technology for those who want to add it to their bike setup. Alloy hubs and rims are wrapped with Bontrager R1 Hard-Case Lite tyres which can take a pounding without weighing you down.

This time the drivetrain gets a few Shimano 105 components (shifters and derailleurs), although the cassette is still from the Tiagra family. The brakes are also upgraded to Shimano 105 from the generic alloy dual-pivot units on the Domane 4.0. You even get a carbon seatpost from Bontrager, which is light and compliant to dampen impacts and vibrations to a greater degree.

Trek Domane 4.3 Specifications 2014
Front Derailleur:Shimano 105Front Fork:Trek IsoSpeed carbon
Rear Derailleur:Shimano 105Rear Shock:N/A
Shifters:Shimano 105 STIBrakes:Shimano 105
Gears:10 speedRims:Bontrager
Chainring:50/34Tyres:Bontrager R1 Hard-Case Lite
Cassette:12-30Weight:N/A

Trek Domane 4.5

The Domane 4.5 is turned out with the complete Bontrager Race TLR wheelset to distinguish it from its more basic stable mates and Bontrager R2 Hard-Case tyres.

The Shimano Ultegra drivetrain is reliable and robust, as well as offering an 11-speed setup which is the choice of many endurance racers.

Trek Domane 4.5 Specifications 2014
Front Derailleur:Shimano UltegraFront Fork:Trek IsoSpeed carbon
Rear Derailleur:Shimano UltegraRear Shock:N/A
Shifters:Shimano Ultegra STIBrakes:Alloy pivot brakes
Gears:11 speedRims:Bontrager Race
Chainring:50/34Tyres:Bontrager R2 Hard-Case Lite
Cassette:11-28Weight:N/A

Trek Domane 4.7

The FSA Gossamer crank of the Domane 4.5 is replaced with a true Ultegra component for the range-topping 4.7 and you also get Ultegra brakes for added control. It sticks with the aforementioned Bontrager wheelset and additional frameset solutions, making it a very manageable bike that still sits on the more affordable end of the endurance racing spectrum, this being £2,300.

The Domane 4-Series has something for everyone, although it should be considered alongside equally interesting rival options next year.

Trek Domane 4.7 Specifications 2014
Front Derailleur:Shimano UltegraFront Fork:Trek IsoSpeed carbon
Rear Derailleur:Shimano UltegraRear Shock:N/A
Shifters:Shimano Ultegra STIBrakes:Shimano Ultegra
Gears:11 speedRims:Bontrager Race
Chainring:50/34Tyres:Bontrager R2 Plus
Cassette:11-28Weight:N/A