TREK CIRCUIT WAVECEL ROAD HELMET CRYSTAL WHITE Size:L 1 x Shimano SM-BB80 BSA

1 x Shimano SM-BB80 BSA 83mm Bottom Bracket

The floor and lower walls can easily be detached for cleaning

Capacity 3

Extension Min

TREK CIRCUIT WAVECEL ROAD HELMET CRYSTAL WHITE Size:L 1 x Shimano SM-BB80 BSAIf 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