Introduction
This manual provides essential information for the proper use, fitting, and maintenance of your Retrospec Dakota Multi-Sport Helmet. Designed for adults, this helmet offers protection for various activities including cycling, skateboarding, roller skating, and scootering. It features a classic skate design with eight vents for airflow and includes two sets of interchangeable pads for a customized fit.

Image: Side view of the Retrospec Dakota Helmet in matte marble, showcasing its classic design and ventilation slots.
Safety Information
The Retrospec Dakota Helmet is designed to reduce the risk of head injury during impact. For maximum protection, the helmet must fit properly and all retention straps must be securely fastened. This helmet is certified to meet safety standards STM F2040-11 / ASTM F1446, EN 1077, and EN 1078 for bike, skate, and ski use. Always inspect your helmet for damage before each use. If the helmet sustains a significant impact, it should be replaced immediately, even if visible damage is not apparent.
Setup and Fitting
1. Sizing Your Helmet
To determine the correct helmet size, measure the circumference of your head. Wrap a measuring tape around your head, positioning it just above your ears and keeping it level around the widest part of your head. Refer to the sizing chart below to select the appropriate size.

Image: A visual guide demonstrating how to measure head circumference for helmet sizing, accompanied by a table listing helmet sizes (Small, Medium, Large) and their corresponding head circumference ranges in centimeters.
2. Adjusting for a Custom Fit
- Insert Pads: The helmet comes with two sets of interchangeable inner pads of varying thickness. Choose the set that provides a snug, comfortable fit without excessive pressure points. The pads attach with hook-and-loop fasteners inside the helmet.
- Positioning: Place the helmet squarely on your head, ensuring it covers your forehead. It should not be tilted back or forward.
- Strap Adjustment: Fasten the chin strap buckle. Adjust the straps so they form a 'V' shape just below your ears. The chin strap should be snug enough that you can only fit one or two fingers between the strap and your chin.
- Stability Check: With the strap fastened, try to move the helmet from side to side and front to back. The helmet should feel secure and not shift significantly.

Image: An interior view of the Retrospec Dakota Helmet, showing the removable inner padding and the adjustable strap system with its buckle.
Operating Guidelines
Always wear your Retrospec Dakota Helmet when engaging in activities such as cycling, skateboarding, roller skating, or scootering. Ensure the helmet is properly fitted and secured before beginning any activity. The helmet is designed for single impact protection; if it sustains an impact, it must be replaced. Do not modify the helmet or attach accessories not approved by the manufacturer, as this may compromise its protective capabilities.
Maintenance
Cleaning
- Clean the helmet shell with a soft cloth, mild soap, and water. Avoid harsh chemicals, solvents, or abrasive cleaners, as these can damage the helmet's materials.
- The inner pads can be removed and 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 near heat sources or in areas where it could be exposed to chemicals or fumes.
Troubleshooting
- Helmet feels loose: Ensure the correct size pads are installed and the chin strap is adjusted snugly.
- Discomfort: Re-adjust the internal pads and strap system. If discomfort persists, verify you have the correct helmet size.
- Excessive heat: The helmet features eight vents for ventilation. Ensure no obstructions are blocking these vents.
Specifications
| Feature | Detail |
|---|---|
| Brand | Retrospec |
| Model Name | Dakota Helmet (Model 3089) |
| Outer Material | Acrylonitrile Butadiene Styrene (ABS) |
| Inner Material | Expanded Polystyrene (EPS) |
| Ventilation | 8 rectangular vents |
| Pads | 2 sets of interchangeable inner pads |
| Certifications | STM F2040-11 / ASTM F1446, EN 1077, EN 1078 |
| Recommended Age | Adult (14+) |
| Item Weight | 1 Pound |
| Color | Matte Marble |
Warranty Information
The Retrospec Dakota Helmet is covered by a Limited Lifetime Warranty. For specific terms and conditions, please refer to the warranty documentation included with your purchase or visit the official Retrospec website.
Customer Support
For further assistance, questions, or concerns regarding your Retrospec Dakota Helmet, please contact Retrospec customer support. Contact information can typically be found on the product packaging or the official Retrospec website.





