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. An IsoSpeed decoupler smooths out rough roads and the 1x11 drivetrain simplifies shifting without sacrificing gear range, making this high-performance bike perfect for everything from solo workouts to speedy group rides.
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
- IsoSpeed—a decoupler at the seat tube/top tube junction that absorbs fatiguing bumps from the road so you can stay stronger longer
- On your left, roadie! This fitness bike is more than capable of taking on speedy group road rides
- You can pair FX Sport with your smartphone and send your ride data to your favorite fitness app when you add DuoTrap S
Specifications
Frameset:
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Frame: 400 series OCLV carbon, IsoSpeed, internal routing, 3s chain keeper, DuoTrap S compatible, fender mounts, flat mount disc, 142x12mm thru axle
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Fork: FX Carbon, threadless alloy steerer, hidden fender mounts, flat mount disc, 405mm axle-to-crown, 100x12mm thru axle
Wheels:
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Hub front: Formula alloy, centerlock disc, 100x12mm thru-axle
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Skewer front: Bontrager Switch thru axle, removable lever
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Hub rear: Shimano RXC400, centerlock, Shimano 11-speed freehub, 142x12mm thru axle
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Skewer rear: Bontrager Switch thru axle, removable lever
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Rim: Bontrager Tubeless Ready Disc, 32-hole, presta valve
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Spokes: 14g stainless steel
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Tire: Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700x32c
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Max tire size: 35c without fenders, 32c with fenders
Drivetrain:
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Shifter: Shimano RS700, 11 speed
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Rear derailleur: Shimano GRX RX812, long cage, 42T max cog
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*Crank: Size: XS, S Shimano GRX RX600, 40T ring, 170mm length Size: M, L, XL Shimano GRX RX600, 40T ring, 175mm length
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Bottom Bracket: Shimano BB71, 86.5mm, PressFit
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Cassette: Shimano SLX M7000, 11-42, 11 speed
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Chain: Shimano HG601
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Pedal: Wellgo M141, resin body, alloy cage
Components:
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Saddle: Bontrager H1
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Seatpost: Bontrager alloy, 27.2mm, 12mm offset, 330mm length
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*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
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Grips: Bontrager Satellite IsoZone Plus, lock-on, ergonomic
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*Stem: Size: XS Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 90mm length Size: S, M Bontrager Elite, 31.8mm clamp, Blendr compatible, 7 degree, 100mm length Size: L, XL Bontrager Elite, 31.8mm clamp, Blendr compatible, 7 degree, 110mm length
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Headset: 1-1/8'' threadless, sealed cartridge bearings
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*Brake: Size: XS, S, M, L, XL Shimano hydraulic disc, MT201 lever, UR300 caliper Size: XS, S, M, L, XL Shimano MT201 hydraulic disc, flat mount, 160mm rotor
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Brake rotor: Shimano RT10, centerlock, 160mm
Weight:
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Weight: M - 9.55 kg / 21.06 lbs
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Weight limit: This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).