TREK 2025 FX SPORT 4 Road Bike helmetsale The Boa® Fit System lets

The Boa® Fit System lets you easily secure and adjust helmet fit with just one hand

the Tee LS Traze Amp features a slightly longer cut on the back – also means no bad surprises for whoever is following you on the trail

Stan’s No Tubes brings you its race-proven mountain bike tubeless tyre sealant

Ideal for pairing with our Standard Mouth Insulated Sport Cap for one-handed refreshment

TREK 2025 FX SPORT 4 Road Bike helmetsale The Boa® Fit System letsTREK 2025 FX SPORT 4 Road Bike About This Bike: 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.