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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 expect your bike to grow with you as you advance in speed and distance.
The tech you get
A lightweight 400 Series OCLV Carbon frame with a road-smoothing IsoSpeed decoupler, a carbon fork, a 2x10 Shimano Tiagra drive train with a wide range of gearing, hydraulic disc brakes, hidden mudguard mounts, a lightweight Bontrager alloy wheel set with thru-axles for better responsiveness and control, and a vibration-absorbing handlebar with ergonomic grips.
The final word
FX Sport 5 has quality parts that will hold up over serious miles, but the real value of this model comes in the OCLV Carbon frame: it's light, fast and it has IsoSpeed – a decoupler at the seat tube/top tube junction that absorbs fatiguing bumps from the road so you can stay stronger for longer.
The Walkthrough
favorite_borderWhy you'll love it
- All the performance of an advanced carbon road bike, with the comfort and control that comes from flat handlebars
- On your left, roadie! This fitness bike is more than capable of taking on speedy group road rides
- You can pair FX with your smartphone and send your ride data to your favourite fitness app when you add DuoTrap S
- It's easy to accessorise with mudguards, lights and more!
- Like every Trek hybrid, it's backed by a lifetime warranty and supported by a wide network of retail partners
How to: Pump your tyres
Setting your bike's tyre pressure correctly will give you a more comfortable ride with better grip and handling. Even better, it can help prevent flats
Watch the video
How to: Fix a flat tyre
Flat? Fixed. Our simple how-to video will show you how to get back on two wheels in no time flat.
Watch the video
How to: Wash your bike
A clean bike is a happy bike, but washing your ride is a bit more complicated than a quick spray with the hose or a joyride through your local car wash. Follow our step-by-step process and you’ll learn the dos and don’ts of keeping your bike in tip-top shape!
Watch the video
How to: Remove and install wheels
From transporting on a rack to fixing a flat, sometimes those wheels need to come off your bike. Keep watching to learn how to safely remove and install wheels that use a quick-release system.
Watch the videoFeatures
Hydraulic disc brakes
Hydraulic disc brakes offer the absolute strongest stopping power even in wet and muddy conditions.
IsoSpeed decoupler
The core of Trek's endurance comfort technology is our IsoSpeed decoupler, the result of an 18-month study of how a racing bike performs over rough roads, and how that performance affects the rider. It's a technological revolution.
Learn more
400 Series OCLV
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.
Learn more
Internal cable routing
We route shift and brake cables through the frame to keep things clean and simple. And it looks great, too.
Carbon fork
Lightweight fork with carbon fibre legs soaks up hand-numbing road vibration.
DuoTrap S compatible
DuoTrap S 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.
Puncture-resistant tyres
Tough Bontrager Hard-Case tyres help keep punctures from slowing you down.
Tubeless Ready rims
Bontrager TLR (Tubeless Ready) Road is the first fully integrated tubeless system for road wheels. When you go tubeless with TLR, you can run lower tyre pressure for increased traction and comfort without the threat of pinch flats.
IsoZone handlebar and grips
Suspension for your hands. Our exclusive vibration-damping IsoZone material absorbs road bumps and buzz, giving you more control and an incredibly comfortable ride.
Blendr stem
Bontrager stem technology lets you clip your gear directly to the stem for clean looks and maximum user friendliness.
Learn more
Hidden mudguard mounts
Discreet mounts accommodate full-coverage mudguards for added utility.
Specifications
*spec applies to all sizes unless otherwise noted
| Frame | 400 series OCLV carbon, IsoSpeed, internal routing, 3s chain keeper, DuoTrap S-compatible, mudguard mounts, flat-mount disc, 142x12 mm thru axle |
|---|---|
| *Fork |
Size:
S, M, L, XL FX Carbon, threadless alloy steerer, hidden mudguard mounts, flat-mount disc, 405 mm axle-to-crown, 100x12 mm thru axle |
|
Size:
S, M, L, XL FX Carbon, flat mount disc, hidden fender mounts, 405mm axle-to-crown, 100x12mm thru axle |
| Front hub | Bontrager alloy, sealed bearing, CenterLock disc, 100x12 mm thru axle |
|---|---|
| Rear hub | Bontrager alloy, sealed bearing, CenterLock disc, Shimano 11-speed freehub, 142x12 mm thru axle |
| Rim | Bontrager Affinity Disc, Tubeless Ready, 28-hole, Presta valve |
| Tyre | Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700x32 c |
| Shifter | Shimano Tiagra 4700, 10-speed |
|---|---|
| Front derailleur | Shimano Tiagra 4700, braze-on |
| Rear derailleur | Shimano Tiagra 4700, long cage, 34T max cog |
| *Crank |
Size:
S Shimano Tiagra 4700, 50/34, 170 mm length |
|
Size:
M, L Shimano Tiagra 4700, 50/34, 172.5 mm length |
|
|
Size:
XL Shimano Tiagra 4700, 50/34, 175 mm length |
|
| Bottom bracket | Shimano BB71, 86.5 mm, PressFit |
| Cassette | Shimano Tiagra HG500, 11-34, 10-speed |
| Chain | KMC X10 |
| Pedal | VP Resin body, alloy cage, toe clip |
| Saddle | Bontrager Montrose Comp, steel rails, 138 mm width |
|---|---|
| Seatpost | Bontrager Comp, 6061 alloy, 27.2 mm, 8 mm offset, 330 mm length |
| *Handlebar |
Size:
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:
S, M Bontrager Elite, 31.8 mm clamp, Blendr-compatible, 7-degree, 100 mm length |
|
Size:
L, XL Bontrager Elite, 31.8 mm clamp, Blendr-compatible, 7-degree, 110 mm length |
|
| Head set | 1-1/8" threadless, sealed cartridge bearings |
| Brake | Shimano MT201 hydraulic disc, flat-mount, 160 mm rotor |
| Brake rotor | Shimano RT10, 160 mm, CenterLock |
| Brake pad | Brake Pad Shimano Resin Disc Pad B01S |
| Weight | 10.35 kg / 22.82 lb |
|---|---|
| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb). |
Sizing & fit
Proper bike fit is essential for best performance and comfort. Any size and geometry measurements shown on trekbikes.com are for general comparison purposes only. To find your perfect fit, visit an authorised Trek retailer, where an expert skilled at sizing will help you find the appropriate bike and size for your individual needs.
Rider Height
Inseam
XS
147.0 - 155.0 cm
4'9.9" - 5'1.0"
69.0 - 73.0 cm
27.2" - 28.7"
S
155.0 - 165.0 cm
5'1.0" - 5'5.0"
72.0 - 78.0 cm
28.3" - 30.7"
M
165.0 - 175.0 cm
5'5.0" - 5'8.9"
77.0 - 83.0 cm
30.3" - 32.7"
L
175.0 - 186.0 cm
5'8.9" - 6'1.2"
82.0 - 88.0 cm
32.3" - 34.6"
XL
186.0 - 197.0 cm
6'1.2" - 6'5.6"
87.0 - 93.0 cm
34.3" - 36.6"
All measurements provided in cm unless otherwise stated.
| Frame size letter | Wheel size | A — Seat tube | B — Seat tube angle | C — Head tube length | D — Head angle | E — Effective top tube | F — Bottom bracket height | G — Bottom bracket drop | H — Chainstay length | I — Offset | J — Trail | K — Wheelbase | L — Standover | M — Frame reach | N — Frame stack |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| XS | 700c | 35.6 | 75.0° | 11.0 | 70.0° | 53.1 | 28.5 | 6.5 | 43.8 | 5.0 | 7.4 | 104.5 | 68.4 | 38.8 | 53.3 |
| S | 700c | 40.6 | 74.5° | 13.5 | 70.5° | 55.0 | 28.5 | 6.5 | 43.8 | 5.0 | 7.1 | 105.6 | 71.2 | 39.5 | 55.8 |
| M | 700c | 45.7 | 74.0° | 16.0 | 71.0° | 57.0 | 28.5 | 6.5 | 43.8 | 5.0 | 7 | 106.7 | 74.3 | 40.3 | 58.4 |
| L | 700c | 50.8 | 73.5° | 18.5 | 71.5° | 59.0 | 28.5 | 6.5 | 43.8 | 4.5 | 6.7 | 107.2 | 78.1 | 40.9 | 61.1 |
| XL | 700c | 55.9 | 72.5° | 21.0 | 72.5° | 62.0 | 28.5 | 6.5 | 43.8 | 4.5 | 6.3 | 108.0 | 81.8 | 41.9 | 64.0 |