Giro Aether Spherical Cycling Helmet User Manual

1. Product Overview

The Giro Aether Spherical Cycling Helmet is engineered for comprehensive performance and protection, featuring advanced technologies to enhance safety and comfort during cycling. This manual provides essential information for proper use, fitting, and maintenance of your helmet.

Image: Giro Aether Spherical Cycling Helmet, Matte Black Flash color variant.

Key Features:

• Spherical Technology and MIPS Protection System: Ball-and-Socket Design, powered by MIPS, redirects impact forces without compromising comfort, ventilation, weight, or style. This market-leading protection system addresses rotational motion for added safety.
• Progressive Layering: Dual-density EPS foam liner designed to address high and low-speed impacts for more comprehensive energy management.
• Unparalleled Airflow: 21 Wind Tunnel vents and internal channeling allow air to flow through the helmet to enhance cooling power.
• Lightweight and Durable: In-mold construction eliminates excess weight and permanently fuses a tough polycarbonate outer shell to the interior liner.

2. Setup and Fitting

Proper helmet fit is crucial for both comfort and safety. Follow these steps to ensure your Giro Aether Spherical helmet fits correctly.

2.1. Determine Your Size

To find the correct helmet size, measure the circumference of your head. Use a flexible measuring tape and wrap it around your head, keeping it just above your ears and eyebrows, and level from front to back. Compare your measurement to the size chart below.

2.2. Helmet Fitting Steps

Watch the official Giro video for a visual guide on how to properly fit your cycling helmet.

1. Measure: Measure your head circumference just above the ears and eyebrows to determine the recommended size.
2. Try On: Place the helmet on your head. It should feel snug but comfortable, with the front resting just above your eyebrows.
3. Adjust Side Straps: Adjust the side straps so that the strap junction sits comfortably under your ears, without any slack.
4. Adjust Chin Strap: Buckle the chin strap and adjust it to be comfortably snug against your jaw and neck. You should be able to open your mouth to eat and speak without the helmet shifting excessively.
5. Adjust Fit System: Use the helmet's internal fit system (e.g., Roc Loc 5+) to tighten or loosen the helmet around your head until it feels secure without causing pressure points or discomfort. Ensure the helmet remains stable when you twist it lightly left and right, and when you try to roll it forward and backward. It should not block your vision or roll off your head.
6. Test Ride: Take a short test ride to confirm comfort and stability. Make any minor adjustments as needed.

3. Operating Your Helmet

Once properly fitted, your Giro Aether Spherical helmet is ready for use. Always wear your helmet correctly adjusted for every ride.

• Ensure all straps are securely fastened and the fit system is snug before each ride.
• The helmet should sit level on your head, covering your forehead without obstructing your vision.
• Avoid wearing anything under your helmet that could interfere with its fit or protective function, such as thick hats.

4. Maintenance and Care

Proper maintenance extends the life of your helmet and ensures its continued effectiveness.

• Cleaning: Clean the helmet's exterior with a soft cloth, mild soap, and water. Avoid harsh chemicals or abrasive cleaners, as these can damage the helmet's materials.
• Interior Pads: Removable interior pads can be hand-washed with mild soap and water, then air-dried.
• Storage: Store your helmet in a cool, dry place away from direct sunlight and extreme temperatures. Avoid storing it in a car on a hot day, as high temperatures can damage the EPS foam liner.
• Inspection: Regularly inspect your helmet for any signs of damage, such as cracks in the shell or foam, frayed straps, or broken buckles. If your helmet shows any signs of damage or has been involved in an impact, it should be replaced immediately.

5. Troubleshooting

If you encounter issues with your helmet, refer to these common troubleshooting tips.

• Helmet feels too tight or loose: Re-adjust the internal fit system (e.g., Roc Loc 5+) and check strap tension. Ensure you have the correct size based on your head circumference.
• Helmet shifts during riding: Tighten the chin strap and side straps. Ensure the fit system is snug. The helmet should not move excessively when you shake your head.
• Discomfort or pressure points: Loosen the fit system slightly. If discomfort persists, the helmet shape might not be ideal for your head, or the padding might need adjustment.
• Straps are too long: After achieving the correct fit, excess strap material can be trimmed and the ends melted carefully with a flame to prevent fraying.

6. Specifications

7. Warranty and Support

For warranty information or product support, please refer to the official Giro website or contact their customer service directly. Always retain your proof of purchase for warranty claims.

If you have questions about the fit or condition of your helmet, contact Giro customer service or your retailer for assistance.