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. 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.
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 and a vibration-absorbing handlebar with ergonomic grips all help to make this bike fast, capable, and comfortable. The FX 4 has a road-smoothing carbon frame and quality parts that will hold up over serious miles, including the simpler-shifting 1x drivetrain.

Key Features

• Carbon Fibre Frame: Super lightweight & dampens road vibrations for a more comfortable ride.
• 11 Shimano Deore Gears: Wide range of gearing suitable for all terrain & to make light work of hills.
• Hydraulic Disc Brakes: Reliable braking performance, whatever the weather.

• Frame: 400 series OCLV Carbon, internal routing, 3s chain keeper, DuoTrap S compatible, mudguard mounts, flat mount disc, 135x5mm ThruSkew
• Fork: FX Carbon, threadless alloy steerer, hidden fender mounts, flat mount disc, 5x100mm thru-skew
• Gear Shifters: Shimano Deore M5100, 11-speed
• Chainset: Prowheel alloy, 42T narrow-wide ring, 175 mm length
• Rear Cassette: Shimano Deore M5100, 11-51, 11-speed
• Chain: KMC X11, 11-speed
• Front Derailleur: N/A
• Rear Derailleur: Shimano GRX RX812, long cage, 42T max cog
• Bottom Bracket: Shimano RS500, 86 mm, PressFit
• Pedals: Bontrager City pedals
• Rims: Bontrager Paradigm, Tubeless Ready, 32-hole, 21 mm width, Presta valve
• Front Hub: Formula CL-51 alloy, 100x5 mm QR
• Rear Hub: Formula CL-52 alloy, 135x5 mm QR
• Tyres: Bontrager GR1 Expert, Hard-Case Lite, wire bead, 60 tpi, 700x40 c
• Brakes: Shimano hydraulic disc, MT201 lever, UR300 calliper, flat mount, 160mm rotor
• Handlebars: Bontrager Satellite Plus IsoZone, 31.8mm, 15mm rise 600-660mm width
• Handlebar Grips: Bontrager Satellite IsoZonePlus, lock-on, ergonomic
• Headset: FSA Integrated, sealed cartridge bearing, 1-1/8"" top, 1.5""
• Stem: Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 90-110 mm length
• Saddle: Bontrager H1
• Seatpost: Bontrager alloy, 27.2 mm, 12 mm offset, 330 mm length
• Extras: N/A Max Tyre size 42c without fenders, 40c with fenders
• Weight: M - 10.74 kg -This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).

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.