Trek Top Fuel 5 Gen 4 2025 Size:M/L The Quantum WaveCel is a

The Quantum WaveCel is a ride-anything mountain bike helmet with updated WaveCel technology that's lighter and cooler than ever

A USB-rechargeable front light with five modes for day and night and enough power to light up the full width of any trail

Tubeless-Ready

generous legroom and maximum performance on any road surface

and Vitamin C provides extra energy when fatigued

Trek Top Fuel 5 Gen 4 2025 Size:M/L The Quantum WaveCel is aThe Top Fuel 5 Gen 4 is a nimble alloy trail bike that's ready to hammer up climbs and hold its own on descents all without breaking the bank. It offers 130 mm of front and 120 mm of rear suspension that gives you just enough squish to soak up chatter without draining your power on all day pedal fests. It comes equipped with a RockShox suspension package and Shimano Deore group set that gives you everything you need to rip in an economical package.