The Giro Tremor Helmet delivers adult-grade trail performance scaled down specifically for growing cyclists. Designed with Giro’s lightweight In-Mold construction, it fuses a polycarbonate outer shell directly with an impact-absorbing EPS liner. This creates a lightweight yet highly durable headpiece that stands up to rugged everyday use without weighing down young neck muscles.
Equipped with 18 generous vents, the Tremor ensures maximum airflow to keep kids cool during warm afternoon rides or intense trail sessions. The eye-catching Matt Coral and Green finish provides high visibility and playful style, while the built-in visor shields eyes from sun flare and trail debris.
Achieving a safe, snug fit is simple thanks to the Roc Loc Sport dial system, which offers a 7 cm adjustment range for seamless one-handed tuning. Combined with Giro’s Universal Fit sizing, it comfortably accommodates head circumferences from 47 cm to 54 cm, allowing the helmet to adapt across multiple growth spurts.
Lightweight In-Mold polycarbonate shell fused with an EPS liner for enhanced durability.
Roc Loc Sport fit system featuring a 7 cm dial adjustment range for quick, secure fitting.
18 channelled ventilation openings designed to maximize cooling airflow during warm rides.
Shell Material: Polycarbonate outer shell with EPS liner
Fit System: Roc Loc Sport dial system
Sizing: Universal Child (47–54 cm)
✅ Growing Kids: The 7 cm adjustment range on the Roc Loc Sport dial lets the helmet adapt across multiple seasons.
✅ Trail & Neighbourhood Riding: Offers durable protection and full coverage suited for dirt tracks, bike paths, and daily commutes.
✅ Maximum Airflow: Features 18 deep vents to keep young riders cool and comfortable in warm weather.
❌ Toddlers & Infants: Sized for Universal Child (47–54 cm), making it too large for toddlers requiring an XS helmet.
❌ Full-Face Downhill Riding: Designed for open-face trail and recreational riding rather than aggressive downhill mountain biking.
❌ Integrated Mips Preference: This standard Tremor model prioritises lightweight simplicity without an internal Mips liner.
Check the fit by adjusting the rear Roc Loc Sport dial until the helmet rests snugly on your child's head before fastening the chin buckle. You should be able to fit two fingers flat between their chin and the strap, and the front rim should sit roughly two fingers above their eyebrows to ensure proper forehead coverage.
