Fit systems work hard to keep your helmet secure and to maximize safety.
Product details
- Original equipment replacement Boa® System for your Bontrager helmet
- Compatible with BOA®-equipped Bontrager helmets, except Velocis MIPS and WaveCel
- Can also be used to upgrade your Headmaster-equipped Bontrager helmet to the Boa System
- Full length fit system designed for use with medium and large sized helmets
- Short length fit system designed to optimize the fit of small sized helmets
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If for any reason you're not satisfied with a Bontrager or Trek aftermarket purchase, return the item, along with the original sales receipt to the original place of purchase within 30 days for an exchange or refund. Think of it as a 30-day test ride.
Learn more
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, and materials.
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