FX Sport SL 4 (2025)
OverviewAbout the Trek FX Sport SL 4 (2025)
The Trek FX Sport SL 4 (2025) is a hybrid bike, built on a carbon frame, listed at $1,999.99. A flat-bar bike for fitness, commuting and easy weekend riding.
SizingWhat size FX Sport SL 4 (2025) do I need?
Enter your height to see the size Trek recommends.
| Size | Rider height | In feet | Inseam |
|---|---|---|---|
| XS | 147 to 155 cm | 4 ft 10 in to 5 ft 1 in | 69 to 73 cm |
| S | 155 to 165 cm | 5 ft 1 in to 5 ft 5 in | 72 to 78 cm |
| M | 165 to 175 cm | 5 ft 5 in to 5 ft 9 in | 77 to 83 cm |
| L | 175 to 186 cm | 5 ft 9 in to 6 ft 1 in | 82 to 88 cm |
| XL | 186 to 197 cm | 6 ft 1 in to 6 ft 6 in | 87 to 93 cm |
Rider heights from Trek's size chart. Height is a starting point: arm and leg length, flexibility and riding style all matter, so a test ride beats any chart. How bike sizing works.
SpecificationsWhat we know
- Brand
- Trek
- Model year
- 2025
- Category
- Hybrid
- Frame
- Carbon
- Wheel size
- 700c
- Drivetrain
- Shimano CUES 1x10
- Brakes
- Disc
- Frame sizes
- XS, S, M, L, XL
- Price
- $1,999.99, RRP AUD (Trek Australia, checked 16 Oct 2026)
Specs and pricing are listed in AUD and sourced from Australian retail listings. Confirm the current details and availability with the seller before purchase.
GeometrySize XS
- Stack
- 543 mm
- Reach
- 383 mm
- Stack/reach
- 1.42
- Head angle
- 70 deg
- Seat angle
- 75 deg
- Wheelbase
- 1047 mm
- Chainstay
- 442 mm
- BB drop
- 65 mm
- Standover
- 708 mm
- Fork rake
- 50 mm
GearingRatios
Ratios are derived from the chainrings and cassette. They describe the gearing, not any rider's ability.
Drivetrain & buildFull specification
- Groupset
- Shimano CUES
- Shifting
- Mechanical
- Drive
- 1x
- Speeds
- 10
- Crank
- Prowheel alloy, 42T narrow-wide ring, 175 mm length
- Chainrings
- 42
- Cassette
- Shimano CUES LG300, LINKGLIDE, 11-48, 10-speed
- Rear derailleur
- Shimano CUES U6000 GS
- Brakes
- Shimano hydraulic disc, MT201 lever, UR300 calliper
- Rotors
- 160mm
- Wheelset
- Bontrager Paradigm, Tubeless-Ready, 32-hole, 21 mm width, Presta valve
- Stock tyre
- 700x40c
- Max tyre clearance
- 42 mm
- Fork material
- Carbon
- Seatpost
- Bontrager alloy, 27.2 mm, 12 mm offset, 330 mm length
- Cockpit
- Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 90 mm length / Bontrager Satellite Plus IsoZone, alloy, 31.8 mm, 15 mm rise, 600 mm width
- Saddle
- Bontrager H1
Bike DNAWhat the numbers say
- Position
- Stack-to-reach 1.42 gives a long and low, racier riding position.
- Steering
- A 70 deg head angle points to stable, relaxed steering.
- Climbing
- Lowest ratio 0.88 is a low climbing gear that still handles steep pitches.
Derived from the published geometry and gearing above. It describes the numbers, not a ride test.
BikeFinder Data Profile: geometry and specification researched from published sources (Trek Australia product data 47243 (spec list, geometry chart, size chart)), verified 2026-10-16. This is a specification analysis, not a physical ride review.
Where to buyStockist
BikeFinder is an independent directory. We link to retailers; prices and stock are set by the seller and shown as at the date checked.
