Trek Domane 5.9 C Dura-Ace

5.0 stars
 (1 Review)
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  • IsoSpeed decoupler overvi...

  • Power Transfer constructi...

  • Domane technology...


From the cobbles of old world Europe to the forgotten roads around your town, Trek's Domane 5 Series lets you ride faster, farther, and smoother. Hand made from Trek's 500 Series OCLV Carbon, the Domane is light and stiff, and with genius ideas like their IsoZone tech, it's compliant too. Race-all-day geometry gives you the edge over the competition with confidence-inspiring handling while the specs keep you at the front of the peloton. Nothing less than a legendary Shimano Dura-Ace drivetrain graces the 5.9 with telepathic shifting and world-class precision for maximum efficiency. Then, add zippy Bonty Race Lite wheels, an IsoSpeed carbon fork, integrated seatmast, and a saddle with titanium rails, and you have one serious machine built to dominate rough roads everywhere.

Features & Info

Geometry chart

Trek's impressive Domane

Trek's Domane is a game-changer. It's a high-performance race machine that's also comfortable enough for even your longest rides and roughest roads. Here are some highlights:
The Domane IsoSpeed fork. The Domane Ride-Tuned No-Cut seatmast. The Domane 3S chain-keeper.
The IsoSpeed fork's rake (offset) has been increased to optimize handling and lengthen the wheelbase for greater compliance over even harsh terrain. It's already been proven with wins in races over the toughest cobbles in Europe.
Trek's Ride-Tuned No-Cut seatmast eliminates seatpost clamping forces so it can be super-light and soak up road vibrations for ride-all-day comfort. It also offers up to 10cm of adjustment, so a perfect fit is guaranteed.
The 3S chain-keeper is integrated directly into the frame. It's an elegant solution that prevents the chain coming off on rough roads and under hard shifts. It lets you make any shift you want at any time without worrying.
The Domane internal cable routing. The Domane E2 front end. The Domane IsoZone handlebars.
The Domane's internal cable routing offers precision shifting and positive braking in all conditions. It's also compatibile with modern drivetrains, aerodynamic, and it protects the cables reducing wear and tear and maintenance.
The E2 head tube tapers from 1 1/2 to 1-1/8 inch and is wider side to side than front to back. This minimizes weight, maximizes power transfer and improves cornering. Result: a more powerful and confident ride. Vibration is the enemy. So, the Domane's ergonomic IsoZone handlebars feature integrated cushioning pads that reduce vibration by 20%. This means a bar that feels custom bent for you and that maximizes your comfort too.

BB90 bottom bracket

Trek's BB90.
Trek's Domane features a unique bottom bracket that's 90mm wide (traditional ones are 68mm wide). This wide bottom bracket lets Trek build the frame with larger tubes for increased power transfer. Plus, the BB90 is machined so that the bearings can be placed directly into the frame saving weight due to fewer parts, ensuring additional pedaling efficiency and simplifying maintenance and repair.

E2 Head Tube

Tapered head tube and fork.For increased stiffness and improved steering precision, tapered head tubes (see image, on left) and forks pair an oversize lower steerer tube (usually 1 1/2-inch, see image, on right) with a standard diameter upper steerer tube (usually 1 1/8-inch). This combination sheds weight compared to straight 1 1/2-inch systems, and adds stability and stiffness when compared to straight 1 1/8-inch systems. The result is a bike that tracks better through corners while allowing for the use of standard stems.

Pedals sold separately

Consumer Reviews

5.0 stars

(1 review)

100% of respondents would recommend this to a friend.


  • Amazing comfort 
  • Amazing speed 
  • Great for long rides 
  • Lightweight 
  • Stable ride 


  • Cost 

Best Uses

  • Endurance rides 
  • Smooth and rough surfaces 

Aug 14, 2015


Stable ride, Amazing Speed, Light, Amazing Comfort, Great for long rides
Best Uses:
Endurance Rides, Smooth And Rough Surfaces
I am an avid cyclist, riding between 7,000 - 8,000 miles a year. Nearly all my miles are paved surfaces and entail distances from 25 - 100 miles. I have ridden a Madone 4.5 for the past 5 years and decided I wanted new wheels. After hours of research and test rides, I elected to purchase the Domane 5.9. The difference in ride comfort is mind blowing. In addition, the gain in effeciency and speed is unbelieveable. If you are looking for a comfortable, endurance bike with amazing speed, look no further.
by BJT from IOWA


Trek 500 Series OCLV Carbon w/E2, BB90
Trek IsoSpeed carbon
Bontrager Race Lite, tubeless-ready
See Rims/Wheels
See Rims/Wheels
Bontrager R3 Hard-Case Lite, 700 x 25c
Shimano Dura-Ace
Front Derailleur
Shimano Dura-Ace
Rear Derailleur
Shimano Dura-Ace
Rear Cogs
Shimano Ultegra, 11-speed: 11-28
Shimano Dura-Ace
Bontrager Race Lite IsoZone VR-CF
Bontrager Gel Cork
Bontrager Race X Lite
Brake Levers
Shimano Dura-Ace
Shimano Dura-Ace
Bontrager Paradigm Race Lite w/titanium rails
Bontrager Ride-Tuned Carbon seatmast cap