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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 prioritize 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 drivetrain with a wide range of gearing, hydraulic disc brakes, hidden fender mounts, a lightweight Bontrager alloy wheelset 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 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 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 a flat handlebar
- 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 favorite fitness app when you add DuoTrap S
- It's easy to accessorize with fenders, lights, and more!
- Like every Trek hybrid, it's backed by a lifetime warranty and supported by a wide network of retail partners
Features
Puncture-resistant tires
Tough Bontrager Hard-Case tires help keep flats from slowing you down.
Blendr stem
Bontrager stem technology lets you clip your gear directly to the stem for clean looks, maximum user friendliness.
Learn more
Hydraulic disc brakes
Hydraulic disc brakes offer the absolute strongest stopping power in all conditions, including wet and muddy.
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
Carbon fork
Lightweight fork with carbon fibre legs soaks up hand-numbing road vibration.
DuoTrap S compatible
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.
Vanishing fender mounts
Discreet mounts accommodate full-coverage fenders for added utility.
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.
Tubeless Ready rims
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!
IsoSpeed decoupler
At the core of Trek's endurance comfort technology is the 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.
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.
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 |
| Hub front | Bontrager alloy, sealed bearing, CenterLock disc, 100x12 mm thru axle |
|---|---|
| Skewer front | Bontrager Switch thru axle, removable lever |
| Hub rear | Bontrager alloy, sealed bearing, CenterLock disc, Shimano 11-speed freehub, 142x12 mm thru axle |
| Skewer rear | Bontrager Switch thru-axle, removable lever |
| Rim | Bontrager Affinity Disc, Tubeless Ready, 28-hole, presta valve |
| Spokes | 14 g stainless steel |
| Tire | Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700x32 c |
| Max tire size | 35c without fenders, 32c with fenders |
| 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, 170mm length |
|
Size:
M, L Shimano Tiagra 4700, 50/34, 172.5mm length |
|
|
Size:
XL Shimano Tiagra 4700, 50/34, 175mm length |
|
| Bottom bracket | Shimano BB71, 86.5mm, 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 |
|
| Headset | 1-1/8" threadless, sealed cartridge bearings |
| Brake | Shimano MT201 hydraulic disc, flat-mount, 160 mm rotor |
| Brake rotor | Shimano RT10, 160mm, centerlock |
| Brake pad | Brake Pad Shimano Resin Disc Pad B01S |
| Weight | 10.35 kg / 22.82 lbs |
|---|---|
| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg). |
Sizing & fit
The charts below show our recommended sizes based on height, but there are some other factors, like arm and leg length, that determine a great fit. That’s why you’ll see some overlap in our recommendations. Not every rider who’s 5´8˝, for example, will fit on the same size bike. The best way to find your perfect fit is to consult the experts at your local retailer.
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 7.0 | 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 |