Trek's Domane SLR 7 Disc gets flexible at both ends

Wide rubber, disc brakes, and a couple more endurance racing tricks

Trek's full-carbon Domane SLR 7 Disc is designed to mute rough roads and bumps thanks to the Wisconsin firm's proprietary IsoSpeed decouplers – pivots in the frame that allow subtle fore-aft movement. Wide rubber, thru-axles, disc brakes, and a full Ultegra Di2 spec look to add to the capabilities.

Stealthily contained under the water bottle cage lies the access to the di2 battery.: stealthily contained under the water bottle cage lies the access to the di2 battery.
Stealthily contained under the water bottle cage lies the access to the di2 battery.: stealthily contained under the water bottle cage lies the access to the di2 battery.
This little hatch allows access to the Di2 battery and internally routed cables. Charging is done through the junction box under the stem

Highlights

  • 600 Series OCLV carbon frame
  • Front IsoSpeed decoupler
  • Adjustable rear IsoSpeed decoupler
  • Shimano Ultegra Di2
  • Extra clearance for wide rubber
  • Bontrager Affinity Comp tubeless-ready disc wheels
  • 700x32c Bontrager R3 Hard-Case Lite, 120tpi, aramid bead clinchers
  • Bontrager Pro IsoCore carbon handlebar

Twice as smooth

Trek claims the Domane is "the smooth advantage" – and there's plenty of technology to back that boast up. First and foremost are Trek's IsoSpeed decouplers front and rear.

The previous Domane featured a pivot at the junction where the seat tube is usually locked solidly into the top tube and seatstays, and this new version takes a good idea even further. Trek's decoupler now finds its way up front at the steerer tube. Deflection is allowed fore and aft, but not side to side.

Trek's unique isospeed head tube bows fore and aft: trek's unique isospeed head tube bows fore and aft
Trek's unique isospeed head tube bows fore and aft: trek's unique isospeed head tube bows fore and aft

Hidden inside is Trek's solution to nullifying the roughest roads

The Domane touts the increasingly familiar endurance road bike standard of disc brakes, thru-axles front and rear, and plenty of seatstay and chainstay clearance for wide, cushy, 32mm rubber.

Where it differs from its competition is in the way the IsoSpeed system minimizes the inputs the bike's frame tubes have upon one another. It's more than just a compliant seatpost, like those employed on BMC's GranFondo GF01 Disc, Canyon Endurance CF 9.0 Pro and others. And on this new Domane, the previously fixed amount of forgiveness can be adjusted via a sliding bolt to suit individual riders, or specific courses.  

The compliance is adjustable for your preference or the demands of the day: the compliance is adjustable for your preference or the demands of the day
The compliance is adjustable for your preference or the demands of the day: the compliance is adjustable for your preference or the demands of the day

Slide the little black lever up to make it less compliant, down (as shown) for more cush

Pricing and availability

Trek has set the Domane pricing in the US at $6499.99, in the UK at £4800 and in Austrailia at $6799. Stay tuned over the coming months for a full Domane review on BikeRadar once we've thoroughly put the bike through its paces.

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