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.
| Frame | 400 series OCLV Carbon, internal routing, 3s chain keeper, DuoTrap S compatible, mudguard mounts, flat mount disc, 135x5 mm ThruSkew |
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| Fork | Carbon, hidden mudguard mounts, flat mount disc, 100x5 mm thru-skew |
| Weight | M - 10.74 kg / 23.68 lbs |
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| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb). |
| Shifter | Shimano Deore M5100, 11-speed |
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| Rear derailleur | Shimano Deore M5100, long cage, Shadow Plus |
| Crank | Prowheel alloy, 42T narrow-wide ring, 175 mm length |
| Cassette | Shimano Deore M5100, 11-51, 11-speed |
| Chain | KMC X11, 11-speed |
| Pedal | Bontrager City pedals |
| Max. chainring size | 1x: 44T |
| Hub front | Formula CL-51 alloy, 100x5 mm QR |
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| 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 | 700x42mm without mudguards, 700x40mm with mudguards |
| Saddle | Bontrager H1 |
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| 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 |
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Size: M, L, XL Bontrager Satellite Plus IsoZone, alloy, 31.8 mm, 15 mm rise, 660 mm width |
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| Grips | Bontrager Satellite IsoZone Plus, lock-on, ergonomic |
| *Stem |
Size: XS Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 90 mm length |
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Size: S, M Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 100 mm length |
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Size: L, XL Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 110 mm length |
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| Brake | Shimano hydraulic disc, MT201 lever, UR300 calliper |
| Brake rotor | Shimano RT10, CenterLock, 160 mm |
| Rotor size | Max brake rotor sizes: 160mm front & rear |
