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2023 Trek

FX Sport 4

A 700c carbon frame fitness bike with upper mid-range components and promax hydraulic disc brakes.

Manufacturer Price

1.949 €
Weight10,7 kg  
FrameCarbon
SuspensionRigid
ForkCarbon
Wheels700c Aluminum
Drivetrain1 × 10
GroupsetDeore
BrakesPromax Hydraulic Disc
Where to Buy
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Insights
Ride Feel

Based on frame geometry and build specs.

Rider Position
relaxedaggressive
FX Sport 4
Other Fitness bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

53 km/h

FX Sport 4

57 km/h

Similar Bikes

Highest gear

(descending)

Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

Sizing
XS

147cm – 156cm

SM

154cm – 166cm

MD

164cm – 176cm

LG

174cm – 187cm

XL

185cm – 197cm

Rider Fit Notes
  • 188cm, size XL, Just right
Reviews
BikeRadar
Trek FX 3 Disc Equipped review | BikeRadar

Feb 2024 · Simon Withers

Single-ring hybrid with Shimano Deore and all the extras as standard

Highs
  • Lights and kickstand included

  • Full length fenders

  • Very good contact points

  • Top notch braking

  • Shimano deore gearing

Lows
  • Underpowered lights

  • Only two pairs of bottle bosses

  • Twin stem face plates

  • No bar ends

Read Review

Cycling News
Trek FX 2 Disc Equipped review: Unspectacular but effective

Sept 2022 · Benjamin Page

The Trek FX 2 Disc is a versatile all-rounder with surprising levels of comfort and stability

Highs
  • The frame has a great balance between responsiveness and comfort

  • Equipped for night riding, bikepacking or commuting

  • Can carry a decent amount of weight

  • Stable ride for long distances

Lows
  • Would need a drivetrain upgrade to become a serious fitness bike

  • On the heavy side for a rigid frame

Read Review

Geometry
Specs
Build
Fork

Carbon, hidden fender mounts, flat mount disc, 100x5mm thru-skew

Stem

Size: XS, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 90mm length; Size: S, M, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 100mm length; Size: L, XL, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 110mm length

Handlebar

Size: XS, S, Bontrager Satellite Plus IsoZone, alloy, 31.8mm, 15mm rise, 600mm width; Size: M, L, XL, Bontrager Satellite Plus IsoZone, alloy, 31.8mm, 15mm rise, 660mm width

Saddle

Bontrager H1

Seatpost

Bontrager alloy, 27.2mm, 12mm offset, 330mm length

TypeRigid

Pedals

Bontrager City pedals

Grips

Bontrager Satellite IsoZone Plus, lock-on, ergonomic

Groupset
Rear Derailleur

Shimano Deore M5120, long cage

Crank

Size: XS, S, Prowheel alloy, 42T narrow-wide ring, 170mm length; Size: M, L, XL, Prowheel alloy, 42T narrow-wide ring, 175mm length

Shifters

Shimano Deore M4100, 10 speed

Cassette

Shimano Deore M4100, 11-46, 10 speed

Chain

KMC X10, 10 speed

Brakes

Promax DSK-927 hydraulic disc, flat mount, 160mm rotor

TypePromax Hydraulic Disc

Wheels
Rims

Bontrager Paradigm, Tubeless Ready, 32-hole, 21mm width, Presta valve

Front Hub

Formula CL-51 alloy, 100x5mm QR

Rear Hub

Formula CL-52 alloy, 135x5mm QR

Tires

Bontrager GR1 Expert, Hard-Case Lite, wire bead, 60 tpi, 700x40mm

Disc Rotors

Shimano RT10, CenterLock, 160 mm

Rider Notes
Riders Also Viewed

First added 1 July

Last updated 27 November

Not listed for 914 days