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TREK FX Sport 4 2025

TREK FX Sport 4 click to zoom image
TREK FX Sport 4 click to zoom image
TREK FX Sport 4 click to zoom image
TREK FX Sport 4 click to zoom image
TREK FX Sport 4 click to zoom image
  
Accessories shown pictured not included
Trek: the best bikes, the best bike shops. To ensure you have a great experience while shopping for and servicing your new bicycle, Trek bikes are available only in person. We will not send Trek bikes by courier.
Pricing
OUR PRICE £1699.00




*Delivery Restrictions
Model Year 2025
Options Size: XS; Colour: Matte Onyx Carbon; CURRENTLY UNAVAILABLE
Size: S; Colour: Matte Onyx Carbon; CURRENTLY UNAVAILABLE
Size: M; Colour: Matte Onyx Carbon; CURRENTLY UNAVAILABLE
Size: L; Colour: Matte Onyx Carbon; CURRENTLY UNAVAILABLE
Size: XL; Colour: Matte Onyx Carbon; CURRENTLY UNAVAILABLE
Style
FX Sport 4 is a carbon fibre fitness bike for riders who want the speed of a lightweight road bike with the comfort and control of a flat handlebar. The 1x drivetrain simplifies shifting without sacrificing gear range, making this high-performance bike perfect for everything from solo workouts to speedy group rides.

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 want the simplicity that a 1x drivetrain provides.

The tech you get
A lightweight 400 Series OCLV Carbon frame and fork, a Shimano CUES 10-speed drivetrain with a wide-range cassette, Shimano hydraulic disc brakes for all-weather stopping power, a lightweight tubeless ready wheel set, wide, fast-rolling Bontrager GR1 Expert gravel tyres and a vibration-absorbing handlebar and ergonomic grips.


FX is designed to enhance the rider's experience by connecting to your mobile device or computer. The optional DuoTrap S sensor enables the FX Sport 4 to communicate directly with Bluetooth and ANT+ equipped smart phones and cycle computers, so you can have all the ride information you desire. This way, the speed and distance readings are more accurate, you can check your cadence, and you don't need to drain the phone's battery by using power hungry GPS.

FX Sport 4 benefits from a very comfortable IsoZone handlebar and grip system that is the result of Bontrager's inForm Science of Comfort research. The ergonomically shaped IsoZone Grip is paired with a handlebar containing an advanced elastomer insert to soak up road buzz. The result of this breakthrough bar/grip combination is a near 30% reduction in peak hand pressure - which means more comfort and control.

The FX Sport 4 is equipped with Blendr, a stem/accessory integration interface that enables you to position your Blendr-compatible accessory in a convenient, easy-to-reach-and-see location without the hassle and clutter of extra brackets.

Tubeless Ready (TLR): if you want to these rims will allow you to take the plunge to a tubeless tyre system. Advantages of going tubeless include: a lighter set-up, reduced chance of punctures, and the ability to run grippier, lower tyre pressures without having to worry about pinch punctures.


Frame 400 series OCLV Carbon, internal routing, 3s chain keeper, DuoTrap S compatible, flat mount disc, mudguard mounts, 135x5mm ThruSkew.
Lifetime warranty.
Forks FX carbon, rack and mudguard mounts, flat mount disc, 100x5mm ThruSkew.
Lifetime warranty.
Rear Derailleur Shimano CUES U6000 GS
Shifters Shimano CUES U6000 with optical gear display, 10 speed
Chainset Prowheel alloy, 1x10, 42T narrow-wide ring with chainguard, 175mm crank arm length
Bottom Bracket Threaded external bearing
Chain Shimano LG500
Freewheel Shimano CUES LG300, LINKGLIDE, 11-48, 10 speed cassette
Headset 1 1/8" threadless, sealed cartridge bearings
Stem Bontrager Elite alloy, 31.8mm, 7 degree, Blendr compatible
Handlebars Bontrager Satellite Plus IsoZone, 31.8mm, 15mm rise, 660mm width
Front Brake Shimano UR300 hydraulic disc, flat mount, Shimano RT10 CentreLock 160mm rotor
Rear Brake Shimano UR300 hydraulic disc, flat mount, Shimano RT10 CentreLock 160mm rotor
Brake Levers Shimano MT201
Rims Bontrager Paradigm Tubeless Ready Disc double wall alloy, 32 hole
Front Hub Formula CL-51 alloy, 6-bolt disc, 5x100mm QR
Rear Hub Formula CL-52 alloy, 6-bolt disc, 135x5mm QR
Tyres Bontrager GR1 Expert, Hard-Case Lite, puncture resistant, 700x70c
Saddle Bontrager H1
Seatpost Bontrager alloy, 27.2mm, 12mm offset, 330mm length
Pedals Bontrager City
Grips Bontrager Satellite IsoZone Plus, lock-on, ergonomic
Miscellaneous Weight: 10.5kg (medium)
As with any product, specification is subject to change without prior notification. You are advised to confirm current specification before buying.
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