The Trek FX Sport SL 5 2027 steps up to a wide-range SRAM Apex 1x drivetrain on the lightweight 400 Series OCLV Carbon frame — one shifter, less to think about, without losing gear range.
WHO THIS BIKE SUITS
You want the simplicity of a 1x drivetrain — no front derailleur to think about.
You want a genuine carbon fitness bike with the speed of a road bike.
You want tubeless-ready wheels and wide gravel tyres for confident handling off tarmac.
IF YOU'RE LOOKING FOR SOMETHING DIFFERENT
If budget's the priority, the SL 4 gets you the same frame for less. If you want carbon wheels, the SL 6 steps up further.
WHERE IT SITS IN THE RANGE
The SL 5 sits in the middle of the carbon FX Sport range — the same 400 Series OCLV Carbon frame as the SL 4 and SL 6, with SRAM Apex 1x wide-range shifting as the standout upgrade over the SL 4.
Full FX Sport range: AL 3 — AL Equipped — AL Equipped Midstep — SL 4 — SL 6.
HOW IT RIDES
The carbon frame keeps things fast and responsive, accelerating quicker and handling with more confidence than the aluminium AL tier. A slightly shorter reach and taller stack put you in a more upright, balanced position for smooth power delivery and all-day rideability. SRAM Apex's 1x drivetrain gives precise, intuitive shifting with a wide enough range that you don't miss having a second chainring.
THE FINAL WORD
The Trek FX Sport SL 5 2027 is the sensible middle ground in the carbon FX Sport range. Come in and we'll help you decide whether the SL 6's carbon wheels are worth the extra spend for you.
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, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice. Bike and frame weights are based on pre-production painted frames at time of publication. Weights may vary in final production.
Frame: 400 Series OCLV Carbon, internal routing, 3S chain keeper, DuoTrap S compatible, mudguard mounts, flat mount disc, 135x5 mm ThruSkew
Fork: Carbon, hidden mudguard mounts, flat mount disc, 100x5 mm thru-skew
Headset: Integrated, tapered, internal cable routing through headset
Bottom bracket: Sealed cartridge, 68 mm
Shifters: SRAM Apex, 11-speed
Rear derailleur: SRAM Apex 1, long cage, 42T max cog
Crank: Prowheel alloy, 42T narrow-wide ring, 175 mm length
Cassette: microSHIFT XLE, 11-42, 11-speed
Chain: KMC X11
Brakeset: SRAM Apex hydraulic disc
Rotor: SRAM Paceline, rounded, CentreLock, 160 mm
Rims: Bontrager Paradigm, Tubeless-Ready, 32-hole, 21 mm width, Presta valve
Front hub: Formula CL-51 alloy, 100x5 mm
Rear hub: Formula CL-52 alloy, 135x5 mm
Tyres: Bontrager GR1 Expert, Hard-Case Lite, wire bead, 60 tpi, 700x40 mm
Handlebar: Bontrager alloy, 31.8 mm, 15 mm rise, 600 mm width
Stem: Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 100 mm length
Saddle: Bontrager Verse P3, chromoly rails
Seatpost: Bontrager Comp, 6061 alloy, 27.2 mm, 8 mm offset, 330 mm length
Personalised Bike Consultation
Not sure which model is perfect for you? Our expert team at All Ride Now in Midhurst, West Sussex is here to help you choose with confidence.
- Will you be riding mainly on or off-road?
- Do you prefer an upright or sportier riding position?
- Are you looking for longer range, lighter weight, or a more comfortable feel?
Through a friendly consultation – in-store, by phone, live chat or email – we’ll help you narrow down your options and find the bike that best fits your needs.
