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Trek Fx Sport 4 Carbon Hybrid Bike 2024 in Lithium Grey
Trek Fx Sport 4 Carbon Hybrid Bike 2024 in Lithium Grey
Trek

Trek Fx Sport 4 Carbon Hybrid Bike 2024 in Lithium Grey

£1,340.00 £1,675.00 20% off
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Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

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With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined
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Any item, except food, face masks or e-gift vouchers (full e-gift vouchers T&Cs are listed on the respective product pages) can be returned to us for any reason within 90 days, provided that the item has not been used or fitted and is returned in its original packaging with valid proof of purchase. It is recommended that you use a recorded delivery service to ensure your items are received by us. We cannot assume responsibility for items that are lost in the post.

Online or in-store purchases can both be returned to any store free of charge or can be returned by post after completing the online returns form. If you are returning an item due to a fault, we will refund your postage.

If you wish to return your bike to us, please keep the box it arrived in and let us know using the returns form and we will arrange collection.


Customer Returns Form

If you wish to cancel, return or exchange an order please fill in the form below. Returns can be processed quicker if all required information is added.



Terms & Conditions

Items must be returned in their original packaging and unused. Refunds will be issued once the products have been received and inspected.

Click & Collect customers can buy with confidence knowing that they can review the item before deciding whether it is right for you before leaving the store. Should you decide it's not right for you, it can be conveniently exchanged or refunded straight away, or you still have up to 90 days to return it if you are still unsure.

Please note:

1. If the items we have sent you are faulty, damaged or not as we described, we will cover the cost of collection and the delivery of the correct item.

2. If we have delivered the correct bike but upon inspection, you decide the bike is not the one for you, we will charge you £24.99 for collection. If you do not have the original box, we will charge you an additional £15 to provide one.

Refunds will be processed using the same method of payment used for the original purchase. Credit & debit card refunds must be made to the card used for the original purchase.

We are unable to offer a refund without a valid receipt.

Trek Fx Sport 4 Carbon Hybrid Bike 2024 in Lithium Grey

Season:2024

Brand:Trek

Code:35785LITHIUMGRY

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. 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.
A lightweight 400 series oclv carbon frame and fork, a Shimano Deore 1x drivetrain with a wide-range cassette, Shimano hydraulic disc brakes for all-weather stopping power, a lightweight tubeless-ready wheelset and a vibration-absorbing handlebar with ergonomic grips all help to make this bike fast, capable, and comfortable. The FX 4 has a road-smoothing carbon frame and quality parts that will hold up over serious miles, including the simpler-shifting 1x drivetrain.

Key Features & Benefits:

  • Carbon Fibre Frame:Super lightweight & dampens road vibrations for a more comfortable ride.
  • 11 Shimano Deore Gears:Wide range of gearing suitable for all-terrain & to make light work of hills.
  • Hydraulic Disc Brakes:Reliable braking performance, whatever the weather.

Full Specification:

  • Frame:400 series OCLV Carbon, internal routing, 3s chain keeper, DuoTrap S compatible, mudguard mounts, flat mount disc, 135x5mm ThruSkew
  • Fork:FX Carbon, threadless alloy steerer, hidden fender mounts, flat mount disc, 5x100mm thru-skew
  • Number of Gears:11
  • Gear Shifters:Shimano Deore M5100, 11-speed
  • Chainset:Prowheel alloy, 42T narrow-wide ring, 175 mm length
  • Chainrings:42T
  • Rear Cassette:Shimano Deore M5100, 11-51, 11-speed
  • Chain:KMC X11, 11-speed
  • Front Derailleur:N/A
  • Rear Derailleur:Shimano GRX RX812, long cage, 42T max cog
  • Bottom Bracket:Shimano RS500, 86 mm, PressFit
  • Pedals:Bontrager City pedals
  • Rims:Bontrager Paradigm, Tubeless Ready, 32-hole, 21 mm width, Presta valve
  • Front Hub:Formula CL-51 alloy, 100x5 mm QR
  • Rear Hub:Formula CL-52 alloy, 135x5 mm QR
  • Front Tyre:Bontrager GR1 Expert, Hard-Case Lite, wire bead, 60 tpi, 700x40 c
  • Rear Tyre: BontragerGR1 Expert, Hard-Case Lite, wire bead, 60 tpi, 700x40 c
  • Brakes:Shimano hydraulic disc, MT201 lever, UR300 calliper, flat mount, 160mm rotor
  • Handlebars:Bontrager Satellite Plus IsoZone, 31.8mm, 15mm rise 600-660mm width
  • Handlebar Grips or Tape:Bontrager Satellite IsoZonePlus, lock-on, ergonomic
  • Headset:FSA Integrated, sealed cartridge bearing, 1-1/8"" top, 1.5""
  • Stem:Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 90-110 mm length
  • Saddle:Bontrager H1
  • Seatpost:Bontrager alloy, 27.2 mm, 12 mm offset, 330 mm length
  • Accessories:N/A Max Tyre size 42c without fenders, 40c with fenders
  • Weight:M - 10.74 kg -This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).
Manufacturers reserve the right to change specifications without notice based on availability at the point of assembly.

Sizing Chart for Trek FX Hybrid Bike

Frame SizeRider Height (cm)Rider Height (')Inseam (cm)Inseam (")
XS147 -1554'9'' - 5'1''69 - 7327 - 28
S155 - 1655'1" - 5'5"72 - 7828 - 30
M165 - 1755'5" - 5'8"77 - 8330 - 32
L175 - 1865'8" - 6'1"82 - 8832 - 34
XL186 - 1976'1" - 6'5"87 - 9335 - 36
XXL197 - 2036'5" - 6'7"92 - 9536 - 37

Geometry Information for Trek FX 4, 5 & 6 (Carbon Frames)

Frame size letterXSSMLXL
Wheel size700c700c700c700c700c
A — Seat tube35.640.645.750.855.9
B — Seat tube angle75.0°74.5°74.0°73.5°72.5°
C — Head tube length11.51416.51921.5
D — Head angle70.0°70.5°71.0°71.5°72.5°
E — Effective top tube52.854.356.358.361.3
F — Bottom bracket height28.528.528.528.528.5
G — Bottom bracket drop6.56.56.56.56.5
H — Chainstay length44.244.244.244.244.2
I — Offset55555
J — Trail7.47.16.86.45.8
K — Wheelbase104.7105.4106.5107.5108.2
L — Standover70.875.178.781.284.8
M — Frame reach38.338.539.34041
N — Frame stack54.356.859.46264.8

Geometry Information for Trek FX 1, 2 & 3 (Alloy Frames)

Frame size letterSMLXLXXL
Wheel size700c700c700c700c700c
A — Seat tube38.144.550.857.263.5
B — Seat tube angle74.5°74.0°73.5°73.0°72.0°
C — Head tube length11.513161922
D — Head angle70.5°71.5°71.5°72.5°72.5°
E — Effective top tube54.255.757.158.760.1
F — Bottom bracket height29.629.629.629.629.6
G — Bottom bracket drop6.56.56.56.56.5
H — Chainstay length4545454545
I — Offset55555
J — Trail7.56.86.86.26.2
K — Wheelbase105.9106107107107.2
L — Standover70.473.879.984.888.5
M — Frame reach39.339.739.839.839.2
N — Frame stack53.955.758.661.864.7




Warranty Information for Trek:

Lifetime warranty on Frame sets (frame and rigid fork), main frame and full suspension swing arms for the lifetime of the original owner, and Bontrager wheels with carbon rims.

2-year warranty on Rear suspension linkage components, including bearings, rocker link and accompanying hardware and components, Bontrager wheels with alloy rims, Paint and transfers.

For full warranty policy please visit trekbikes.com

Sizing Information
Trek Sizing Guide
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