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Merlin Cycles£89.00Visit shop Giro Helmets Matt White/Black Giro Merit Spherical Mips Dirt Helmet - / / Small / 51Cm / 55Cm
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The Giro Merit Spherical Dirt Helmet is designed for dedicated trail and mountain bike riders who prioritize safety, comfort, and advanced heat management. Its core strength lies in its Spherical Technology, which utilizes a ball-and-socket Mips design to redirect rotational impact forces, paired with deep-coverage architecture for added security on technical terrain. While it offers premium cooling and protection, users should note that the extensive hardbody coverage and specialized liner design make it a weightier option compared to minimalist cross-country racing helmets.
| Age Group | adult |
|---|---|
| Colour | White |
| Gender | Unisex |
| Model Part Number | GIH7141405 |
| Brand | Giro |
Spherical Technology is a ball-and-socket design, powered by Mips, that allows the outer liner to rotate around the inner liner during a crash to reduce rotational impact energy.
While it can be used on the road, it is optimized for trail riding with extra coverage, a visor, and ventilation patterns specific to mountain bike speeds.
Yes, the moto-style visor is adjustable and screw-in, allowing for replacement if damaged.
Giro recommends replacing your helmet every 3 to 5 years under normal use, or immediately after any significant impact.
Yes, the helmet features integrated eyewear grippers designed to hold standard glasses securely when not in use.
Adjust the rear dial on the Roc Loc Trail Air system and ensure the cradle is correctly positioned at the base of your skull.
Verify that the Ionic+ padding is correctly seated. If it is saturated, remove and hand wash the pads to restore full absorption capacity.
Check the screw-in points on the visor and ensure the fasteners are tightened sufficiently.
To ensure maximum safety, always adjust the Roc Loc Trail Air fit system until the helmet is snug but not constricting. The retention cradle height can often be adjusted to clear eyewear arms for a better fit.
For care, the Ionic+ pads are removable and washable; use mild soap and water, then air dry completely before reinstallation. The hardbody shell can be wiped down with a damp cloth; avoid harsh solvents that could degrade the integrity of the EPS foam. If the helmet sustains a significant impact, it must be replaced, as internal damage to the EPS liner may not be visible to the naked eye.
