Description
Trek FX Sport SL 4 Leisure Bike
The Trek FX Sport SL 4 is a lightweight carbon fitness bike built for riders who want road bike speed with the comfort and control of a flat handlebar. Its simple 1x drivetrain delivers smooth shifting with a wide gear range, making it ideal for fast fitness rides, daily training and quick group sessions. With a carbon frame, hydraulic disc brakes and tubeless ready wheels, the FX Sport SL 4 offers efficient performance on tarmac, paths and mixed terrain.
Key Features
- 400 Series OCLV Carbon frame
- Carbon fork with hidden mudguard mounts
- Shimano CUES U6000 10 speed drivetrain
- Hydraulic disc brakes
- Bontrager Paradigm tubeless ready rims
- Bontrager GR1 Expert 700×40 mm tyres
- Flat handlebar for confident control
- Weight: 10.50 kg (M)
- Maximum total weight limit: 136 kg
Lightweight Carbon Frame and Fork
The FX Sport SL 4 uses Trek’s 400 Series OCLV Carbon for a fast, responsive ride. Internal cable routing keeps the bike clean and quiet, while mudguard mounts and DuoTrap S compatibility add everyday practicality. The carbon fork smooths road buzz and keeps steering precise.
Shimano CUES 10 Speed Drivetrain
The Shimano CUES U6000 1x drivetrain offers simple, reliable shifting with a wide 11 48 cassette for steep climbs and fast rolling terrain. The 42T narrow wide chainring provides secure chain retention and low maintenance performance.
Hydraulic Disc Braking
Shimano hydraulic disc brakes deliver strong, predictable stopping power in all weather conditions. Paired with 160 mm rotors, the FX Sport SL 4 offers confident braking whether you are commuting, training or descending at speed.
Tubeless Ready Wheels and Fast Rolling Tyres
Bontrager Paradigm tubeless ready rims reduce weight and improve ride quality. Bontrager GR1 Expert 700×40 mm tyres offer grip, comfort and speed on tarmac, gravel paths and fitness routes. Maximum tyre size is 42 mm without mudguards or 40 mm with mudguards.
Cockpit and Contact Points
The flat handlebar and ergonomic IsoZone grips provide comfort and control on longer rides. Bar width is size specific for balanced handling across the range. The Bontrager H1 saddle and alloy seatpost complete a comfortable, fitness focused setup.
Bike specifications are advised by the manufacturer and can be subject to change without prior warning.
Please call our helpful sales team on 01539 821 443 or email us for the latest up-to-date product information.


