Product Overview
The Thousand Chapter MIPS Adult Bike Helmet is designed for optimal safety, comfort, and style. It features advanced MIPS technology for enhanced protection, a multi-use magnetic LED tail light for visibility, and the innovative PopLock system for secure storage. Its lightweight and low-profile design ensures a comfortable fit for various head shapes.
- MIPS: Add an extra layer of protection with integrated MIPS technology.
- MULTI-USE MAGNETIC LIGHT: Ride smoothly from day to night with an included 30 lumen USB rechargeable taillight that turns on automatically when magnetically attached to the helmet or multi-use adapter.
- PREMIUM VISORS: Reduce glare and increase your field of vision with visors in elevated finishes, including hand-painted tortoise shell, matte black, and metallic rose gold.
- SECRET POPLOCK: The most convenient and secure way to leave your helmet behind. Access the hidden channel behind the logo mark, and thread your U-lock or chain lock through. Backed by our Anti-Theft Guarantee.
- ACTIVE VENTILATION: 8 strategically placed vents actively capture airflow and pass it through the interior cooling channels – developed to keep you cool on your long rides.
Setup
Helmet Fitting
Achieving the correct fit is crucial for helmet safety and comfort. Use the integrated dial fit system at the back of the helmet to adjust the internal sizing for a snug and secure fit. The nylon straps are also adjustable to ensure the helmet sits correctly on your head.

Image: Thousand Chapter MIPS Helmet Fit Guide showing head circumference measurements for Small, Medium, and Large sizes.
US Chapter MIPS Adult Bike Helmet Size Guide
| Brand Size | Head Circumference (in) | Hat Size (in) |
|---|---|---|
| Small | 21.2 - 22.5 | 6.8 - 7.1 |
| Medium | 22.5 - 23.2 | 7.1 - 7.4 |
| Large | 23.2 - 24.4 | 7.4 - 7.8 |
Magnetic Tail Light Installation & Charging
The included 30 lumen USB rechargeable tail light attaches magnetically to the helmet. It automatically turns on when securely attached. To charge, simply detach the light and connect it to a USB power source using the provided cable. The light can also be attached to your bike using the multi-use adapter.

Image: Rear view of the Thousand Chapter MIPS Helmet showing the magnetic tail light attached.
Video: Demonstrates the magnetic attachment and functionality of the Thousand Chapter Bike Helmet's tail light, including its use on the helmet and a bike seat post.
PopLock Anti-Theft System
The Secret PopLock is a convenient way to secure your helmet. Access the hidden channel behind the logo mark on the side of the helmet. Thread your U-lock or chain lock through this channel to secure the helmet to your bike or another fixed object. This feature is backed by Thousand's Anti-Theft Guarantee.

Image: A person demonstrating the PopLock feature by threading a U-lock through the hidden channel of the helmet.
Operating Instructions
MIPS Safety System
The Multi-directional Impact Protection System (MIPS) is an integrated low-friction layer designed to reduce rotational motion transferred to the brain from angled impacts. This system allows the helmet's outer shell to slide relative to the head in the event of a crash, significantly reducing the forces on the brain.

Image: Interior view of the Thousand Chapter MIPS Helmet highlighting the yellow MIPS safety layer.
Active Ventilation
The helmet features 8 strategically placed vents that actively capture airflow. This air is then passed through interior cooling channels to help keep you cool and comfortable during your rides, especially on longer journeys.

Image: Top-down view of the Thousand Chapter MIPS Helmet, illustrating the active ventilation slots.
Visor
The helmet includes a premium visor designed to reduce glare and enhance your field of vision. The visor is removable, allowing you to customize the helmet's appearance and functionality based on your preference or riding conditions.

Image: Front-side view of the Thousand Chapter MIPS Helmet in Club Navy with a tortoise shell visor.
Maintenance
To ensure the longevity and effectiveness of your helmet, regular maintenance is recommended:
- Cleaning: Use a soft, damp cloth and mild soap to clean the helmet's exterior and interior padding. Avoid harsh chemicals or abrasive materials that could damage the helmet's finish or protective layers.
- Strap Care: Periodically check the chin straps and buckles for any signs of wear or damage. Ensure they are clean and free from debris.
- Storage: Store the helmet in a cool, dry place away from direct sunlight and extreme temperatures. Avoid placing heavy objects on top of the helmet, as this can deform its shape and compromise its protective capabilities.
- Magnetic Light: Keep the magnetic contacts on both the light and the helmet clean to ensure proper connection and charging.
Troubleshooting
If you encounter any issues with your Thousand Chapter MIPS Helmet, consider the following:
- Helmet feels too tight or too loose: Adjust the dial fit system at the back of the helmet. Ensure the chin straps are properly tightened and centered under your chin. Refer to the Helmet Fitting section for detailed instructions.
- Magnetic Tail Light not turning on/charging: Ensure the light is securely attached to the helmet or adapter. Check that the USB charging cable is properly connected to both the light and a power source. Clean the magnetic contacts on both the light and the helmet. If the light has been stored for a long time, it may require a full charge.
- PopLock not engaging: Ensure the PopLock cover is fully removed and the channel is clear of any obstructions.
For further assistance, please contact Thousand customer support.
Specifications
| Feature | Detail |
|---|---|
| Brand | Thousand |
| Color | Club Navy |
| Age Range (Description) | Adult |
| Size | Small |
| Special Feature | MIPS Technology, Adjustable Strap, Visor |
| Model Name | Thousand Adult Bike |
| Outer Material | Polycarbonate (PC) |
| Recommended Uses For Product | Cycling |
| Item dimensions L x W x H | 13 x 10 x 7 inches |
| Inner Material | Expanded Polystyrene |
| Item Weight | 2.2 Pounds |
| UPC | 854382008839 |
| Manufacturer | Thousand |
| Part Number | 7050101304 |
| Sport Type | Cycling |
Warranty and Support
Thousand stands behind the quality of its products. The Chapter MIPS Helmet comes with a Free Accident Replacement policy. If your helmet is ever damaged in an accident, Thousand will replace it for free so you can get right back to riding. Additionally, the Anti-Theft Guarantee ensures that if your helmet is stolen while locked up using the PopLock system, it will also be replaced.
For detailed information on activating your perks or for any support inquiries, please refer to the official Thousand website or contact their customer service directly.