Trek announced a revamp of their best-selling bike series, the FX hybrid. The new FX 1 Disc and FX 2 Disc frames feature internal cable routing, flat-mount disc brakes, and Trek’s proprietary skewer system, along with some flashy paint options. Meanwhile, the FX Sport 4 received component upgrades and new colors.

All images courtesy Trek.

Trek FX disc brake 2020 sport hybrid bike line

The FX series is the best-selling line in Trek’s history, blending the separate worlds of hybrids, road bikes, and arguably gravel bikes. Featuring a rigid fork, 700c wheels, and semi-upright position, the FX is aimed at gym or fitness enthusiasts who want to add cycling to their routine with a bike that’s faster than a beach cruiser, but without fully committing to drop bars or higher-priced bikes.

FX1 Disc
FX1 Disc
FX1 Disc

Both the FX 1 Disc and FX 2 Disc have full redesigned Alpha Aluminum frames with internal cable routing, and the flat mount standard for attaching the brake calipers. They also have ThruSkew, Trek’s proprietary wheel alignment/attachment system.

FX1 Disc

All new FX and FX Sport models are compatible with the DuoTrap S fitness tracker, and have mounts for racks and fenders.

FX 2 Disc
FX 2 Disc
FX 2 Disc
FX 2 Disc

The FX 1 Disc and FX 2 Disc Women’s are available in Stagger models with a lowstep-style frame, shown above. They’re also equipped with “with Women’s Specific Design touchpoints that can provide a better fit and feel to women from the start.”

Trek did not provide images for the FX 4, but said that new color options have been added, along with small component upgrades. Pricing for the new Trek FX series ranges from $549.99 to $1,199.99, with FX 1 Disc and FX Sport 4 at the bookends. All are available immediately through Trek dealers worldwide, or through the link below.


    • Why? What would you replace it with?
      Seems awesome to have integrated speed and cadence sensor – removing the need for 1 or 2 other sensors strapped to your bike with zip ties.

  1. After personally dealing with ThruSkew, I can confidently say it’s a sorry substitute for thru axles. It’s a cost saving measure in the face of greater consumer demands and stiff tariffs. Also, because loose ball QR hubs are the cheapest option. No shop worth its salt carries the FX 1. It sucks, and shops make peanuts on them.

    No one at the entry level cares about internal cable routing, much less knows what it is. It’s hilarious to see shiny pictures of a bike with a THREADED FREEWHEEL.

    • Trek where the K is for Kwality!

      At least they aren’t doing threaded headsets on these from what I can tell. Modern manufactured bikes with low quality modern made outdated components just don’t make sense. Threadless stems, sealed bearings and cassette hubs work really well why go backwards?

    • Cannondale got it right on the new Treadwell with 1 x across the board. The “sweet spot” middle version gets the new microshift Advent 1×9 drivetrain with wide range (11-42T) cassette…..for $750.

  2. I love these bikes, I got a FX2 back in maybe 2009? Anyways, it’s worked flawlessly for the last ten years. Only problem I see, is that my ten year old model still looks the same as the new ones. There’s zero reason to upgrade.

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