Your SEO optimized title Skip to main content

Trek FX Sport 4

Trek FX Sport 4
  • Color: Dark Aquatic
  • Color: Lithium Grey
  • Color: Trek White
Please select options
This item is not permitted to be shipped, however it can be purchased online and picked up at your convenience in our Wantagh, NY store. You will be notified when your order is ready to be picked up.


FX Sport 4 is a carbon fiber fitness bike for riders who want the speed of a lightweight road bike with the comfort and control of a flat handlebar. The 1x drivetrain simplifies shifting without sacrificing gear range, making this high-performance bike perfect for everything from solo workouts to speedy group rides.

- The 1x drivetrain delivers a wide range of gearing with the simplicity of a single shifter
- You get the superior ride quality of carbon without the bank-breaking price
- On your left, roadie! This fitness bike is more than capable of taking on speedy group road rides
- It's easy to accessorize with fenders, lights, and more!


Frame 400 series OCLV Carbon, internal routing, 3s chain keeper, DuoTrap S compatible, fender mounts, flat mount disc, 135x5mm ThruSkew
Fork FX Carbon, threadless alloy steerer, hidden fender mounts, flat mount disc, 5x100mm thru-skew
Rims Bontrager Paradigm, Tubeless Ready, 32-hole, 21mm width, presta valve
Hubs Front: Formula CL-51 alloy, 100x5mm QR
Rear: Formula CL-52 alloy, 135x5mm QR
Tires Bontrager GR1 Expert, Hard-Case Lite, wire bead, 60 tpi, 700x40c
Crankset Prowheel alloy, 42T narrow-wide ring
Shifters Shimano Deore M4100, 10 speed
Rear Derailleur Shimano Deore M5120, long cage
Cassette/Freewheel Shimano Deore M4100, 11-46, 10 speed
Chain KMC X10, 10 speed
Brakes Promax DSK-927 hydraulic disc, flat mount, 160mm rotor
Handlebars Bontrager Satellite Plus IsoZone, alloy, 31.8mm, 15mm rise
Tape/Grips Bontrager Satellite IsoZone Plus, lock-on, ergonomic
Stem Bontrager Elite, 31.8mm, Blendr compatible, 7 degree
Seatpost Bontrager alloy, 27.2mm, 12mm offset, 330mm length
Saddle Bontrager H1
Pedals Bontrager City pedals

* Subject to change without notice.

Part Numbers

Option UPC MPN Store SKU
Dark Aquatic / X-Small 601842667040 5267817
Dark Aquatic / Small 601842667033 5267818
Dark Aquatic / Medium 601842667026 5267819 5267819
Dark Aquatic / Large 601842667019 5267820 5267820
Dark Aquatic / X-Large 601842667002 5267822
Lithium Grey / X-Small 601842667095 5267812 5267812
Lithium Grey / Small 601842667088 5267813 5267813
Lithium Grey / Medium 601842667071 5267814 5267814
Lithium Grey / Large 601842667064 5267815 5267815
Lithium Grey / X-Large 601842667057 5267816
Trek White / X-Small 601842666999 5267824
Trek White / Medium 601842666975 5267828
Trek White / Large 601842666968 5267830
Trek White / X-Large 601842666951 5267832 5267832