Trek 2025 FX Sport 6 Fitness Bike

1643-5323992

FX Sport 6 is an ultra-light and fast fitness bike. It has every performance feature of a high-end road bike, with the added benefit of a flat handlebar for additional comfort and control. A lightweight 400 Series OCLV Carbon frame, wireless electronic SRAM shifting, and Bontrager carbon wheels make it the best choice for serious fitness riders with serious goals.

It's right for you if...

You want the fastest fitness bike you can get — one that can hold its own with any road bike out there. You want to keep up with faster group rides, put on more miles, set new Strava PRs, and leave a pack of road riders in your dust as you sprint to the town line.

The tech you get

A lightweight 400 Series OCLV Carbon frame with a carbon fork, a wireless electronic SRAM Apex XPLR AXS 12-speed drivetrain with a wide range of gearing, hydraulic disc brakes, hidden fender mounts, a lightweight Bontrager Aeolus Elite 35 carbon wheelset with high-quality tubeless-ready Bontrager GR1 Team Issue gravel tires, and a vibration-absorbing handlebar with ergonomic grips.

The final word

The fastest fitness bike. Period. FX Sport 6 delivers lightweight OCLV Carbon frame and fork, high-performance wireless drivetrain, and a light and responsive carbon wheelset to create the ideal ride for anyone who wants to ride ridiculously fast and crush fitness milestones.