TREK CIRCUIT WAVECEL HELMET ENDUROX VO2 MAX high-TPI casing smooths out rough

high-TPI casing smooths out rough terrain for a comfortable ride

Checkmate combines a lightweight aero design with IsoSpeed and Gravel Race geometry that keeps you poised for the attack without eating up your energy

A material advantage

For the most accurate pricing

Hookless compatible and built for high mileage

TREK CIRCUIT WAVECEL HELMET ENDUROX VO2 MAX high-TPI casing smooths out roughIf you get just one helmet, make it this one Whether your finish line is on the race course or your front door, Trek Circuit WaveCel delivers the performance, comfort and tech to be your go to helmet. It's equipped with features that any rider will appreciate, like WaveCel technology, a BOA Fit System and Blendr mount systems. WaveCel is a collapsible cellular structure that lines the inside of the helmet. This Trek exclusive technology disrupts the