The Smith Sidekick Jr. MIPS Mountain Bike Helmet gives young riders the confidence to explore trails, pump tracks, and bike parks with the same style and protection as the grown-ups. Inspired by Smith's adult mountain bike helmets, the Sidekick Jr. combines modern trail styling with advanced safety features for kids ready to progress their riding.
Built with lightweight in-mold construction and the Mips® Safety System, the Sidekick Jr. helps reduce rotational forces during angled impacts while maintaining a comfortable, lightweight feel. An adjustable dial fit system provides a secure, customized fit as young riders grow, while extended rear coverage offers added confidence on technical terrain. With 12 fixed vents, AirEvac™ ventilation for fog-free eyewear, and an integrated visor, this helmet is equally at home on Whistler's family trails, local pump tracks, and everyday rides.
Key Features
- Mips® Safety System helps reduce rotational impact forces
- Lightweight in-mold construction
- Extended rear coverage for added trail protection
- Adjustable dial fit system for a secure, customized fit
- AirEvac™ ventilation integrates with Smith eyewear to reduce fogging
- 12 fixed vents for consistent airflow
- Integrated visor for added trail protection
- Performance comfort liner for all-day wear
- Lightweight, low-bulk single-layer webbing
- Rear vent compatible with Smith Transit Light (sold separately)
- Available in Youth XS (48–52 cm) and Youth S (51–55 cm)
- CPSC, CE EN1078, and AS/NZS2063 certified
- Lightweight design at approximately 310 g
🇨🇦 CANADA
SHIPPING
Shipping rates will be calculated at checkout. Depending on where you are located in Canada, you get FREE Ground shipping for orders over $200 (before tax). Please be advised that Duties and Taxes are not included in the shipping total (where applicable).
RETURNS
If the item you've ordered isn't what you expected, doesn't fit, or you've just changed your mind, contact Emily at emily@mountainkids.ca and we'll get you sorted with a return shipping label and further instructions on how to complete the return. We are happy to offer preferred bulk rates through our carriers. The cost of return shipping will be confirmed before the shipping label is generated and the refund amount will be reduced to account for this cost.
Our returns policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can’t offer you a gift card or an exchange.
To be eligible for a return, your item must be unused and in the same condition that you received it and must have the tags attached.
REFUNDS
Once your return is received, inspected, and determined to meet the conditions above, will process a refund to the payment method used to place the order.
Please note:
- The cost of the return shipping label will be deducted from the final refund. This amount will be confirmed with you before we issue the return shipping label.
- Shipping charges on your original order are not refundable.
EXCHANGES
The best way to make an exchange is to return the unwanted goods for a full refund and place a new order for the goods you'd like instead.
🇺🇸 🇲🇽 INTERNATIONAL 🇦🇺 🇳🇿
SHIPPING
Shipping rates will be calculated at checkout. Please be advised that customs fees and duties are not included in the shipping total - these will vary on your local import regulations.
RETURNS
Unfortunately we cannot offer returns or exchanges on international orders at this time unless there is an issue with the product. If there is an issue with the quality of the item you have received, please email emily@mountainkids.ca and we will find a solution for you!
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

















