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It's right for you if...
You want the fastest fitness bike you can get – one that can hold its own with any road bike out there. You want to keep up with faster group rides, put on more miles, set new Strava PRs and leave a pack of roadies in your dust as you sprint to the town line.
The tech you get
A lightweight 400 Series OCLV Carbon frame with a road-smoothing IsoSpeed decoupler, a carbon fork, a 2x11 Shimano 105 road 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
The fastest fitness bike. Period. A lightweight OCLV Carbon frame with IsoSpeed, a carbon fork, and a high-performance Shimano 105 drive train make FX Sport 6 the ideal ride for anyone who wants to ride ridiculously fast and crush fitness milestones.
The Walkthrough
favorite_borderWhy you'll love it
- A fitness bike that's every bit as fast and capable as the race bikes found in our road line-up
- You can pair FX with your smartphone and send your ride data to your favourite fitness app when you add DuoTrap S
- The cables are routed internally, which protects them from the elements and adds to the bike's sleek look
- 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
Features
Hidden mudguard mounts
Discreet mounts accommodate full-coverage mudguards for added utility.
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.
Puncture-resistant tyres
Tough Bontrager Hard-Case tyres help keep punctures from slowing you down.
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.
Blendr stem
Bontrager stem technology lets you clip your gear directly to the stem for clean looks and maximum user friendliness.
Learn more
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.
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
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 |
| Spokes | 14 g stainless steel |
| Tyre | Bontrager R2 Hard-Case Lite, aramid bead, 60 tpi, 700x32 c |
| Shifter | Shimano RS700, 11-speed |
|---|---|
| Front derailleur | Shimano 105 R7000, braze-on |
| Rear derailleur | Shimano 105 R7000, long cage, 34T max cog |
| *Crank |
Size:
S Shimano 105 R7000, 50/34 (compact), 170 mm length |
|
Size:
M, L Shimano 105 R7000, 50/34 (compact), 172.5 mm length |
|
|
Size:
XL Shimano 105 R7000, 50/34 (compact), 175 mm length |
|
| Bottom bracket | Shimano BB71, 86.5 mm, PressFit |
| Cassette | Shimano 105 R7000, 11-32, 11-speed |
| Chain | Shimano HG601 |
| 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, M Bontrager Satellite Plus IsoZone, alloy, 31.8 mm, 15 mm rise, 600 mm width |
|
Size:
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 | FSA Integrated, sealed cartridge bearing, 1-1/8" top, 1.5" bottom |
| Brake | Tektro HD-R310, hydraulic disc, 160 mm rotor |
| Brake rotor | Shimano RT10, 160 mm, CenterLock |
| Weight | M - 9.30 kg / 20.5 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 |