Our 2017 Trek FX S4 has 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.
Ready to Ride!
These bikes ship fully accessorized with pedals, bottle cage(s) (one cage on 15" and 17.5" and two cages on 20" and 22.5"), Bontrager frame-mounted tire pump, Bontrager seat pack containing one replacement inner tube and two Bontrager tire levers!
We go to great lengths to ensure you're getting a top-quality used bike. From our 52-point inspection to our 30-day Satisfaction Guarantee, we are confident you're going to love the quality and value Trek Travel used bikes offer. Follow the link to ourFAQ pageto learn more about our standards and policies.
Please note: While we try to make these bikes as standardized as possible, slight spec/color changes such as tire model, bar tape, and saddle model may occur. Please reach out with any additional questions.
FX Alpha Gold Aluminum, DuoTrap S compatible, rack & fender mounts
Bontrager Nebula, carbon
15, 17.5, 20, 22.5"
Formula TK31 alloy front hub; Formula TK32 alloy rear hub; Bontrager Tubeless Ready rims
Shimano Tiagra, 10 speed
Shimano R460, 48/34
Shimano Tiagra, 11-34, 10 speed
Bontrager SSR, 2-bolt head, 27.2mm, 12mm offset
Bontrager Satellite Plus IsoZone, 31.8mm, 15mm rise