FX Sport 4

Overview

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 prioritize comfort and performance equally, and want the simplicity 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, wide, fast-rolling Bontrager GR1 Expert gravel tires, and a vibration-absorbing handlebar and ergonomic grips.

Fast, capable, comfortable. This bike has a road -smoothing carbon frame and quality parts that will hold up over serious miles, including the simpler-shifting 1x drivetrain.

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!

NEW

2023

FX Sport 6

$3,499.99

NEW

2023

FX Sport 5

$2,629.99

NEW

2023

FX 1

$689.99

NEW

2023

FX 1 Stagger

$689.99

2023

FX 3 Disc

$1,229.99

2023

FX 3 Disc Stagger

$1,229.99

2023

FX 2 Disc Stagger

$979.99

2023

FX 2 Disc

$979.99

2023

FX 1 Disc

$829.99

2023

FX 1 Disc Stagger

$829.99

2021

$1,899.99

2021

FX 2 Disc

$849.99

Bontrager Comp Multi-Tool

$19.99

Bontrager BackRack Disc MIK

$64.99

Bontrager MIK Utility Trunk Bag

$179.99

Bontrager NCS Fender Set

$94.99

SALE

Electra Bar End Mirror

$21.99 - $22.99 | $25.99 - $39.99

Features

Customize your bike with fenders, racks, bottle cages, and more to make it your own.

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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.

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.

Ultra high performance, within reach. The areal weight range and modulus mix of 400 Series OCLV provides an exhilarating sense of acceleration and confident handling.

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Lightweight, full carbon fork soaks up hand-numbing road vibration for a more comfortable ride.

Hydraulic disc brakes offer the absolute strongest stopping power in all conditions, including wet and muddy.

Suspension for your hands. Our exclusive vibration-damping IsoZone material absorbs road bumps and buzz, giving you more control and an incredibly comfortable ride.

DuoTrap S (sold separately) integrates a Bluetooth®/ANT+ sensor into the frame. Log routes and track fitness progress on your computer or smart phone with no external sensor. Works with all major ANT+ wireless players, including Bontrager, Garmin, PowerTap, and SRM.

Cables are routed directly into the head tube and through the bike's tubes for a clean look that prevents cables and housing from getting dirty.

Bontrager stem technology lets you clip your gear directly to the stem for clean looks, maximum user friendliness.

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40mm wide gravel tires deliver all-terrain performance. If you don't want to use fenders, you can fit tires up to 42mm wide.

Bontrager TLR (Tubeless Ready) Road is the first fully integrated tubeless system for the road. No tubes mean there’s no pinch flats, allowing you to run lower tire pressure. With lower tire pressure you can increase traction, control. and comfort, reduce fatigue on you. Best of all, the tire sealant seals up punctures as soon as they happen!

Carry more and stay drier when you add a Bontrager rack and fenders. We recommend Bontrager NCS-1 fenders in size large. For a rack, simply follow Bontrager’s rack sizing guidelines for a perfect fit.

Going for a long ride? Pack all the nutrition and gear you need by adding a Bontrager frame bag using the integrated mounts on the underside of the top tube.

Specs

Fork	Carbon, threadless alloy steerer, hidden mudguard mounts, flat-mount disc, 5x100 mm thru-skew

Hub front	Formula CL-51 alloy, 100x5mm QR
Skewer front	135x5mm bolt-on
Hub rear	Formula CL-52 alloy, 135x5mm QR
Skewer rear	169x5mm bolt-on
Rim	Bontrager Paradigm, Tubeless Ready, 32-hole, 21 mm width, Presta valve
Tire	Bontrager GR1 Expert, Hard-Case Lite, wire bead, 60 tpi, 700x40c
Max tire size	42c without fenders, 40c with fenders

Shifter	Shimano Deore M4100, 10 speed
Rear derailleur	Shimano Deore M5120, long cage
Crank	Prowheel alloy, 42T narrow-wide ring, 175 mm length
Cassette	Shimano Deore M4100, 11-46, 10 speed
Chain	KMC X10, 10 speed
Pedal	Bontrager City pedals
Max chainring size	44T

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
*Stem	Size: XS Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 90 mm length
Size: S, M Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 100 mm length
Size: L, XL Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 110 mm length
Brake Set	Promax DSK-927 hydraulic disc, flat mount, 160mm rotor
Rotor size	Max brake rotor size: 160mm

Weight	M - 10.74 kg / 23.68 lbs
Weight limit	This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).

Sizing

Geometry

Service

Reviews

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More options

FX Sport 6

FX Sport 5

FX 1

FX 1 Stagger

FX 3 Disc

FX 3 Disc Stagger

FX 2 Disc Stagger

FX 2 Disc

FX 1 Disc

FX 1 Disc Stagger

FX Sport 4

FX 2 Disc

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FX carbon fork

Hydraulic disc brakes

IsoZone handlebar and grips

DuoTrap S compatible

Sleek cable integration

Blendr stem

Learn more

Wide, grippy tires

Tubeless Ready rims

Hidden rack and fender mounts

Frame bag mounts