Bontrager WaveCel BOA Bike Helmet Fit System – Trek Store

Keep your helmet secure.
– Original equipment replacement BOA® Fit System for your Bontrager WaveCel helmet
– Not compatible with non-WaveCel helmets Not compatible with non-WaveCel helmets
– Full-length fit system designed for use with medium and large-sized helmets Full length fit system designed for use with medium and large sized helmets
– Short length fit system designed to optimise the fit of small-sized helmets Short length fit system designed to optimize the fit of small sized helmets