2020

FX Sport 6

Model 28843

FX Sport 6 is the lightest and fastest fitness bike in the line-up. It has every performance feature of a high-end road bike, with the added benefit of flat handlebars for additional comfort and control. A lightweight 400 Series OCLV Carbon frame with a road-smoothing IsoSpeed decoupler and an advanced Shimano drive train make it the best choice for serious fitness riders with serious goals.

2020

FX 3 Equipped

7.0 FX Stagger

7.0 FX

2015

7.3 FX Women's

2015

7.4 FX

7.1 FX Stagger

2015

7.2 FX

2015

7.1 FX

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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.

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 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.

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

Discreet mounts accommodate full-coverage mudguards for added utility.

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.

Tough Bontrager Hard-Case tyres help keep punctures from slowing you down.

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.

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

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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 offer the absolute strongest stopping power even in wet and muddy conditions.

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.

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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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*spec applies to all sizes unless otherwise noted

Frameset

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
*Fork	Size: S, M, L, XL FX Carbon, flat mount disc, hidden fender mounts, 405mm axle-to-crown, 100x12mm thru axle

Wheels

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, black
Tyre	Bontrager R2 Hard-Case Lite, aramid bead, 60 tpi, 700x32 c

Drivetrain

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

Components

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
*Handlebar	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
*Stem	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, 160mm, centerlock

Weight

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).

We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, and materials.

Bike and frame weights are based on Trek pre-production painted frames at the time of publication. Weights may vary in final production.

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

147.0 - 156.0 cm

4'9.9" - 5'1.4"

69.0 - 73.0 cm

27.2" - 28.7"

154.0 - 167.0 cm

5'0.6" - 5'5.7"

72.0 - 78.0 cm

28.3" - 30.7"

164.0 - 177.0 cm

5'4.6" - 5'9.7"

77.0 - 83.0 cm

30.3" - 32.7"

174.0 - 187.0 cm

5'8.5" - 6'1.6"

82.0 - 88.0 cm

32.3" - 34.6"

185.0 - 197.0 cm

6'0.8" - 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	7.0	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

More options

FX 1 Stagger

FX 1

FX 1 Disc

FX 3 Disc

FX Sport 5 Women's

FX Sport 5

FX 2 Disc Women's

FX Sport 4 Women's

FX 2 Disc Women's Stagger

FX 3 Disc Women's Stagger

FX 1 Stagger Disc

FX Sport 4

FX 3 Disc Women's

FX 2 Disc

FX 3 Equipped Stagger

FX 3 Equipped

7.0 FX Stagger

7.0 FX

7.3 FX Women's

7.4 FX

7.1 FX Stagger

7.2 FX

7.1 FX

It's right for you if...

The tech you get

The final word

The Walkthrough

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Features

Hidden mudguard mounts

Tubeless Ready rims

Puncture-resistant tyres

DuoTrap S compatible

Blendr stem

Learn more

IsoZone handlebar and grips

Hydraulic disc brakes

IsoSpeed decoupler

Learn more

400 Series OCLV

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Specifications

Sizing & fit