FX Sport 4 is a carbon fibre 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 prioritise comfort and performance equally, and want the simplicity that a 1x drivetrain provides.
The tech you get
A lightweight 400 Series OCLV Carbon frame and fork, a Shimano CUES 10-speed drivetrain with a wide-range cassette, Shimano hydraulic disc brakes for all-weather stopping power, a lightweight tubeless ready wheel set, wide, fast-rolling Bontrager GR1 Expert gravel tyres and a vibration-absorbing handlebar and ergonomic grips.
The final word
Fast, capable, comfortable. The FX Sport 4 has a road-smoothing carbon frame and quality parts that will hold up over serious miles, including the simpler-shifting 1x drivetrain.
Specifications
*spec applies to all sizes unless otherwise noted
| Frame | 400 series OCLV Carbon, internal routing, 3s chain keeper, DuoTrap S compatible, mudguard mounts, flat mount disc, 135x5 mm ThruSkew |
|---|---|
| Fork | Carbon, hidden mudguard mounts, flat mount disc, 100x5 mm thru-skew |
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 136 kg (300 lb). |
Drivetrain
| 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, 9/10/11-speed |
| Pedal | Bontrager City pedals |
| Max. chainring size | 1x: 44T |
Wheels
| Hub front | Formula CL-51 alloy, 100x5 mm QR |
|---|---|
| Skewer front | 135x5 mm bolt-on |
| Hub rear | Formula CL-52 alloy, 135x5 mm QR |
| Skewer rear | 169x5 mm bolt-on |
| Rim | Bontrager Paradigm, Tubeless Ready, 32-hole, 21 mm width, Presta valve |
| Tyre | Bontrager GR1 Expert, Hard-Case Lite, wire bead, 60 tpi, 700x40 mm |
| Max tyre size | 42mm without mudguards, 40mm with mudguards |
Components
| Saddle | Bontrager H1 |
|---|---|
| Seatpost | Bontrager alloy, 27.2 mm, 12 mm offset, 330 mm length |
| *Handlebar |
Size: XS, S Bontrager Satellite Plus IsoZone, alloy, 31.8 mm, 15 mm rise, 600 mm width |
|
Size: M, L, XL Bontrager Satellite Plus IsoZone, alloy, 31.8 mm, 15 mm rise, 660 mm width |
|
| Grips | Bontrager Satellite IsoZone Plus, lock-on, ergonomic |
| Brake | Shimano hydraulic disc, MT201 lever, UR300 calliper |
| Brake rotor | Shimano RT10, CenterLock, 160 mm |
| Rotor size | Max brake rotor sizes: 160 mm front and rear |
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.
Bike and frame weights are based on pre-production painted frames at time of publication. Weights may vary in final production.
