If You Get One Helmet, Make It This One

The Trek Circuit WaveCel is positioned as the one helmet for every ride - whether that is a race, a commute, a group ride, or an everyday solo session. The combination of WaveCel advanced helmet technology, a BOA Fit System, and Blendr magnetic mount compatibility puts the Circuit into a category of its own for riders who want a single helmet that genuinely covers all their riding without compromise. The Dnister and Purple Flip colourway gives this Medium size a distinctive, modern finish that stands apart from standard single-colour road helmet options.

The helmet is made of 50% post-consumer recycled polystyrene - a sustainability commitment that reduces the environmental impact of the foam liner production without affecting the helmet's protective performance. CPSC certification confirms compliance with the US safety standard for bicycle helmets.

• An ultra-versatile helmet that is light, cool and sleek with the added protection of WaveCel helmet technology.
• WaveCel advanced helmet technology
• The BOA® Fit System lets you easily secure and adjust your fit with one hand
• The Blendr magnetic mount system easily integrates a GoPro camera and Bontrager lights
• Made of 50% post-consumer recycled polystyrene
• FlatStrap semi-fixed strap dividers lay flush and move fore and aft for a perfect fit
• Soft, comfortable, moisture-wicking, and washable helmet pads

WaveCel Technology - Advanced Impact Protection

WaveCel is Bontrager and Trek's proprietary helmet impact protection technology - a collapsible cellular structure that lines the inside of the helmet shell and works differently from standard EPS foam. Where standard foam compresses under direct impact, WaveCel is designed to flex, crumple, and glide in a sequence of three responses that manage both direct and rotational impact forces. The cellular structure allows the helmet to absorb impact energy more effectively across a wider range of impact types and angles than a standard foam liner.

WaveCel's inclusion in a road and everyday helmet at the Circuit's price point represents a meaningful step up in protection for riders who currently use a standard foam helmet - the technology addresses the rotational impact component that standard foam alone does not manage as effectively.

BOA Fit System, Blendr Mount, and FlatStrap Dividers

The BOA Fit System allows the helmet's retention system to be adjusted with one hand using a single dial - tightening or loosening the fit while riding without removing the helmet or stopping. For riders who find their head volume changes slightly during a ride or who want to fine-tune fit between on-the-road and off-the-bike use, the one-handed dial adjustment provides immediate response without interrupting the ride.

The Blendr magnetic mount system integrates cleanly into the helmet's rear - accepting a GoPro camera or Bontrager lights through a magnetic interface that attaches and removes quickly without tools. For riders who use an action camera on training rides or who want a rear light mounted directly to the helmet for commuting visibility, the Blendr mount eliminates the need for a separate helmet-mounted bracket.

FlatStrap semi-fixed strap dividers lay flush against the helmet's sides, moving fore and aft for precise strap positioning - eliminating the bunching and pressure that poorly positioned strap dividers create against the cheek and ear. Soft, moisture-wicking, and washable helmet pads maintain hygiene and comfort across the helmet's service life.

FAQs

What is WaveCel technology and how does it differ from standard helmet foam?

WaveCel is a collapsible cellular structure that lines the inside of the helmet, designed to flex, crumple, and glide in response to impacts. This three-phase response manages both direct and rotational impact forces more effectively across a wider range of impact types than standard EPS foam, which compresses under direct impact but does not manage rotational forces as effectively.

What does the BOA Fit System do on the Circuit WaveCel?

The BOA Fit System uses a single dial to tighten or loosen the helmet's retention system with one hand while riding. This allows fit to be adjusted without stopping or removing the helmet, providing a more responsive fit solution than a standard ratchet retention system.

What is the Blendr mount system?

Blendr is Bontrager's magnetic mount system integrated into the rear of the Circuit WaveCel. It accepts a GoPro camera or Bontrager lights through a magnetic interface that attaches and removes quickly without tools - providing a clean, integrated accessory mounting solution.

What sustainable materials are used in the Circuit WaveCel?

The helmet foam liner is made from 50% post-consumer recycled polystyrene, reducing the environmental impact of production without affecting protective performance.

Are the helmet pads washable?

Yes. The helmet pads are soft, moisture-wicking, and washable - allowing hygiene maintenance throughout the helmet's service life.