FX Sport 4 is where performance fitness bikes begin. A lightweight frame, 20-speed drivetrain, and a wealth of performance features give this fitness bike the capability to take on longer commutes and faster recreational rides without sacrificing the versatility that has made FX Trek's best-selling lineup ever.
It's right for you if...
You've got goals to demolish, and you need a bike that can help you finish a 50-mile ride charity ride, your first sprint triathlon, your daily commute, or any other fitness milestone. You want a performance hybrid that's comfortable on longer rides with big hills and versatile enough to carry groceries home after your workout.
The tech you get
A lightweight 200 Series Alpha Aluminum frame, a carbon fork that absorbs road vibration, Tektro hydraulic disc brakes for all-weather stopping power, a 20-speed Shimano Tiagra drivetrain with a wide range of gears for hilly routes, rack and hidden fender mounts, fast-rolling Bontrager AW1 tires, IsoZone ergonomic grips, and compatibility with DuoTrap S so you can track your fitness gains.
The final word
If you have fitness goals, FX Sport 4 will help you cruise past them. It's the perfect combination of road bike speed and hybrid bike versatility: comfortable over the long haul, quick when you want to put the hammer down, and reliable in all weather conditions and a variety of road surfaces.
Why you'll love it
- FX Sport 4 is a bike that inspires you to ride farther, faster, and demolish the fitness goals you've set for yourself
- Road bike speed and hybrid bike versatility in one performance package
- It's versatile and does whatever you want it to do, whether that's riding for fitness, commuting, or cruising to the farmer's market to pick up groceries
- It's easy to accessorize with racks, a kickstand, fenders, lights, and more!
- You can pair FX with your smartphone and send your ride data to your favorite fitness app when you add DuoTrap S
|Frame||FX Alpha Gold Aluminum, DuoTrap S compatible, rack & fender mounts|
|Fork||Bontrager Nebula, carbon|
|Headset||VP Slimstak, sealed semi-cartridge bearings|
|Rims/Wheels||Bontrager Tubeless Ready rims|
|Hubs||Formula TK31 alloy front hub; Formula TK32 alloy rear hub|
|Tires||Bontrager AW1 Hard-Case Lite, 700x28c|
|Bottom Bracket||Sealed cartridge|
|Front Derailleur||Shimano Tiagra|
|Rear Derailleur||Shimano RD-R350|
|Cassette/Rear Cogs||Shimano Tiagra, 11-34, 10 speed|
|Shifters||Shimano Tiagra, 10 speed|
|Handlebars||Bontrager Satellite Plus IsoZone, 31.8mm, 15mm rise|
|Tape/Grips||Bontrager Satellite IsoZone Plus, lock-on, ergonomic|
|Stem||Bontrager Elite, 31.8mm, 7 degree, w/computer & light mounts|
|Brakes||Tektro alloy linear-pull brakes, Tektro adjustable-reach alloy levers|
|Pedals||Nylon body w/alloy cage, toe clip & strap|
|Seat Post||Bontrager SSR, 2-bolt head, 27.2mm, 12mm offset|
* Subject to change without notice.
|Matte Metallic Gunmetal / 18-inch||601479664924||549615||FXS27747181L|
|Matte Metallic Gunmetal / 20-inch||601479664931||549616||FXS27578178L|