





Trek FX Sport 4 Bike
Fast, capable, comfortable.
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.
Jump to Specs → Jump to Features →
The tech you get.
A lightweight 400 Series OCLV Carbon frame and fork, a Shimano Deore 1x drivetrain with a wide-range cassette, 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.
♡ 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!
SPECS
| FRAMESET | |
| 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, 100x5mm thru-skew |
| WHEELS | |
| HUB FRONT | Formula CL-51 alloy, 100x5mm QR |
| HUB REAR | Formula CL-52 alloy, 135x5mm QR |
| RIM | Bontrager Paradigm, Tubeless Ready, 32-hole, 21mm width, Presta valve |
| TIRE | Bontrager GR1 Expert, Hard-Case Lite, wire bead, 60 tpi, 700x40 c |
| DRIVETRAIN | |
| SHIFTER | Shimano CUES U6000 w/optical gear display, 10 speed |
| REAR DERAILLEUR | Shimano CUES U6000 GS |
| CRANK |
Prowheel alloy, 42T narrow-wide ring, 175mm length |
| CASSETTE | Shimano CUES LG300, LINKGLIDE, 11-48, 10 speed |
| CHAIN | Shimano LG500 |
| PEDAL | Bontrager City pedals |
| COMPONENTS | |
| SADDLE | Bontrager H1 |
| SEATPOST |
Size: Bontrager alloy, 27.2mm, 12mm offset, 330mm length |
| HANDLEBAR |
Size: XS, S Size: M, L, XL
|
| GRIPS |
Bontrager Satellite IsoZone Plus, lock-on, ergonomic |
| BRAKE | Shimano hydraulic disc, MT201 lever, UR300 caliper |
| BRAKE ROTOR | Shimano RT10, CenterLock, 160 mm |
| WEIGHT | |
| 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). |
TECHNOLOGY
1x drivetrain
A 1x drivetrain means more versatility, simpler shifting and less things to go wrong. You still have a wide range of gears, but with lighter and more intuitive shifting. Everything you need and nothing more.
Just-right geometry
The all-new FX Sport has slightly less reach and slightly more stack than previous models for a more comfortable yet active and fast riding position.
Original: $2,249.99
-70%$2,249.99
$675.00Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Fast, capable, comfortable.
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.
Jump to Specs → Jump to Features →
The tech you get.
A lightweight 400 Series OCLV Carbon frame and fork, a Shimano Deore 1x drivetrain with a wide-range cassette, 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.
♡ 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!
SPECS
| FRAMESET | |
| 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, 100x5mm thru-skew |
| WHEELS | |
| HUB FRONT | Formula CL-51 alloy, 100x5mm QR |
| HUB REAR | Formula CL-52 alloy, 135x5mm QR |
| RIM | Bontrager Paradigm, Tubeless Ready, 32-hole, 21mm width, Presta valve |
| TIRE | Bontrager GR1 Expert, Hard-Case Lite, wire bead, 60 tpi, 700x40 c |
| DRIVETRAIN | |
| SHIFTER | Shimano CUES U6000 w/optical gear display, 10 speed |
| REAR DERAILLEUR | Shimano CUES U6000 GS |
| CRANK |
Prowheel alloy, 42T narrow-wide ring, 175mm length |
| CASSETTE | Shimano CUES LG300, LINKGLIDE, 11-48, 10 speed |
| CHAIN | Shimano LG500 |
| PEDAL | Bontrager City pedals |
| COMPONENTS | |
| SADDLE | Bontrager H1 |
| SEATPOST |
Size: Bontrager alloy, 27.2mm, 12mm offset, 330mm length |
| HANDLEBAR |
Size: XS, S Size: M, L, XL
|
| GRIPS |
Bontrager Satellite IsoZone Plus, lock-on, ergonomic |
| BRAKE | Shimano hydraulic disc, MT201 lever, UR300 caliper |
| BRAKE ROTOR | Shimano RT10, CenterLock, 160 mm |
| WEIGHT | |
| 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). |
TECHNOLOGY
1x drivetrain
A 1x drivetrain means more versatility, simpler shifting and less things to go wrong. You still have a wide range of gears, but with lighter and more intuitive shifting. Everything you need and nothing more.
Just-right geometry
The all-new FX Sport has slightly less reach and slightly more stack than previous models for a more comfortable yet active and fast riding position.






















