Trek

FX Sport 4

Part #
$1,999.99
$1,999.99 $1,999.99
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FX Sport 4

*Trek & Giant bikes are available for in-store pickup only. Shippable bikes incur an oversize shipping fee.*
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.

It's right for you if...You're ready to log big miles, and you prefer the feel of a flat handlebar to the drop bars that come stock on most road bikes. You prioritize comfort and performance equally, and want the simplicity a 1x drivetrain provides.

The tech you get: A lightweight 400 Series OCLV Carbon frame and fork, a Shimano Deore 1x drivetrain with a wide-range cassette, Shimano hydraulic disc brakes for all-weather stopping power, a lightweight tubeless ready wheelset, wide, fast-rolling Bontrager GR1 Expert gravel tires, and a vibration-absorbing handlebar and ergonomic grips.

The final word: Fast, capable, comfortable. This bike has a road -smoothing carbon frame and quality parts that will hold up over serious miles, including the simpler-shifting 1x drivetrain.

Why you'll love it: 

  • 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!

 

*Please note - spec applies to all sizes unless listed separately

Frame
400 series OCLV Carbon, internal routing, 3s chain keeper, DuoTrap S compatible, fender mounts, flat mount disc, 135x5mm ThruSkew
Fork

Weight
M - 10.50 kg / 23.15 lbs
Weight limit
This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).

Shifter
Shimano CUES U6000 w/optical gear display, 10 speed
Rear derailleur
Shimano CUES U6000 GS
*Crank
Cassette
Shimano CUES LG300, LINKGLIDE, 11-48, 10 speed
Chain
Shimano LG500, 9/10/11 speed
Pedal
Max chainring size
1x: 44T

Hub front
Formula CL-51 alloy, 100x5mm
Skewer front
Hub rear
Formula CL-52 alloy, 135x5mm
Skewer rear
Rim
Tire
Bontrager GR1 Expert, Hard-Case Lite, wire bead, 60 tpi, 700x40c
Max tire size
42mm without fenders, 40mm with fenders

Saddle
Bontrager H1
Seatpost
Bontrager alloy, 27.2mm, 12mm offset, 330mm length
*Handlebar
Size: XS, S
Bontrager Satellite Plus IsoZone, alloy, 31.8mm, 15mm rise, 600mm width
Size: M, L, XL
Bontrager Satellite Plus IsoZone, alloy, 31.8mm, 15mm rise, 660mm width
Grips
Bontrager Satellite IsoZone Plus, lock-on, ergonomic
*Stem
Size: XS
Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 90mm length
Size: S, M
Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 100mm length
Brake
Shimano hydraulic disc, MT201 lever, UR300 caliper
Brake rotor
Shimano RT10, centerlock, 160mm
Rotor size
Max brake rotor sizes: 160mm front & rear