By Trek

Trek FX Sport SL 4 Bike 2026 Matte Onyx Carbon


$2,249.99

Klarna financing available on orders $2,000+

Size

Gender: Unisex
Season: Spring/Summer 2026

Bike Delivery

To inquire about bike delivery, kindly reach out to us at support@comorsports.com or 1-888-262-7337

We will provide a shipping quote and verify if the bike is in its original packaging and ready for shipment.

Please note that our Free Shipping offer does not apply to bikes.

Hit the road with the Trek FX Sport SL 4, a carbon fiber bike that blends the speed of a road bike with the stability and comfort of a flat handlebar. Its 1x drivetrain keeps your ride simple, smooth, and worry-free, whether you're crushing solo rides or flying with the group.

Built with Trek’s 400 Series OCLV carbon, the FX Sport SL 4 delivers responsive acceleration and confident handling. Shimano CUES with LINKGLIDE technology ensures long-lasting, precise shifting, while thoughtful geometry and ergonomic Bontrager components keep every mile comfortable and controlled.

Key Features

  • Frame: 400 Series OCLV Carbon, internal routing, 3s chain keeper, DuoTrap S compatible, mudguard mounts, flat-mount disc, 135x5 mm ThruSkew
  • Fork: Carbon, hidden fender mounts, flat mount disc, 100x5 mm ThruSkew
  • Shifter: Shimano CUES U6000 w/optical gear display, 10 speed
  • Rear Derailleur: Shimano CUES U6000 GS
  • Crank: Prowheel alloy, 42T narrow-wide ring, 175 mm length
  • Cassette: Shimano CUES LG300, LINKGLIDE, 11-48, 10 speed
  • Chain: Shimano LG500
  • Pedal: Bontrager City pedals
  • Max Chainring Size: 44T
  • Hub Front: Formula CL-51 alloy, 100x5 mm
  • Skewer Front: 135x5 mm bolt-on
  • Hub Rear: Formula CL-52 alloy, 135x5 mm
  • Skewer Rear: 169x5 mm bolt-on
  • Rim: Bontrager Paradigm, Tubeless Ready, 32-hole, 21 mm width, Presta valve
  • Tire: Bontrager GR1 Expert, Hard-Case Lite, wire bead, 60 tpi, 700x40c
  • Max Tire Size: 42 mm without fenders, 40 mm with fenders
  • Saddle: Bontrager H1
  • Seatpost: Bontrager alloy, 27.2 mm, 12 mm offset, 330 mm length
  • Handlebar: Bontrager Satellite Plus IsoZone, alloy, 31.8 mm, 15 mm rise, 600–660 mm width depending on size
  • Grips: Bontrager Satellite IsoZone Plus, lock-on, ergonomic
  • Stem: Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 90–110 mm length depending on size
  • Brake: Shimano hydraulic disc, MT201 lever, UR300 caliper
  • Brake Rotor: Shimano RT10, CenterLock, 160 mm front & rear