Facebook posts by Trek dealers help to lift the lid on updated Domane design

Details are still scarce on the new Trek Domane that we first spotted Fabian Cancellara riding at Strade Bianche in March, but, after some presumable innocent Facebook posts by Trek dealers and after seeing the bike in the flesh at the Tour of Flanders, we are confident in predicting that the bike will have some sort of adjustable rear suspension.

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The main point of interest on the new Domane is the seat tube, which looks to be split in half down its length, with the rear half seeming to support the rider’s weight, while the front looks to be there for improved aerodynamics.

trek domain adjustable suspension seat tube

The split seat tube design features some sort of adjustment system

However, painted down the side of the seat tube is a scale of some sort, and there is also some sort of mechanism in between the two halves of the seat tube, which looks like it could be slid up and down. When the rear wheel is removed, there is also a small bolt on the back side of the seat tube, around which are the words “loosen to slide”.

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It would make sense if this was part of a new adjustable IsoSpeed decoupler system, which could be altered to give different levels of compliance based on the roughness of the road surface and rider preference.

new trek domain disc brakes

Facebook posts by Trek dealers have lifted the lid on the new Domane

At the front the bike looks to have a Isospeed decoupler built into the head tube, something which was not seen on the old bike, while the down tube and seatstays also seem to be slightly bowed, presumably to increase compliance.

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These suspicions were confirmed from seeing Facebook posts by a couple of Trek dealers, which showed the “new Domane SLR” with caption telling of the “adjustable rear IsoSpeed” and “new IsoSpeed front”. The posts also show a disc brake version of the bike, which Cancellara will not be riding in his final season, with front and rear thru axles.

Trek is not yet willing to give any firm details on the unreleased bike, but with it already receiving considerable attention during the cobbled Classics, we’re sure a full release can’t be far away.

  • Bill Bauman

    I had a chance to see an early build of the Domane disc version yesterday. It does, indeed, have the adjustable Isospeed decoupler in the rear. It is completely separated, and I was informed you could actually remove the entire system from the bike. I believe they claimed up to 17% more compliance than before, if selected, and if you prefer stiffer, you can lock it out to the level of the Emonda. There’s an adjustment screw on the front inside of the seat tube that unlocks the slider on the side.

    The front Isospeed is really cool. I didn’t have the time, but they said I could ride it. I’m really curious just how comfy this bike may be, as I’m a huge fan of a non-bumpy ride. They’ve also gone from 160mm to 140mm Icetech rotors, standard, with the RS-805 flat mount disc calipers. The handlebars have a new, integrated gel and dampening padding of some sort, as well. They also added an access compartment to the top of the downtube so you can get at the internal routing, and it will be the location for the battery on Di2 builds.

    The all-black and subtle decals add a nice touch. Overall, it is a drool-worthy bike.

  • Stevo

    CW should be renamed DiscBrakesSramSpecializedTrek Weekly.