Features
- Whether you’re on the sidewalk, pump track or trail, the kids’ Smith Sidekick Jr. Mips bike helmet packs classic MTB style and Mips® Safety System crash protection into a helmet for young riders.
- From the visor to the vents and extended back coverage, it has all the design features of Smith big-kid helmets
- Mips Safety System reduces rotational forces caused by angled impacts to the head
- Lightweight in-mold construction fuses the exterior shell and EPS foam for a one-piece design that’s lightweight and durable
- Adjustable dial-fit system for a customized fit with a youth-specific dial that’s easier for smaller fingers to grab for adjustment
- AirEvac™ ventilation system integrates with Smith eyewear for fog-free lenses
- 12 fixed vents for consistent airflow
- Integrated visor
- Performance comfort liner
- Lightweight, low-bulk single-layer webbing
- 2 sizes available: XS (18.9–20.5 in., age range: 4–8); S (20.1–21.6 in., age range: 8–12)
- CPSC and CE EN 1078, and AS/NZS2063 certified
Specifications
- Best Use: Mountain Biking, Mountain Biking
- Helmet Style: Mountain Bike, Mountain Bike
- Helmet Construction: In-mold, In-mold
- Shell Material: Polycarbonate, Polycarbonate
- Head Circumference: 18.9-20.5 inches, 20.1-21.6 inches
- Vents: 12, 12
- Visor/Brim: Yes, Yes
- Weight: 10.9 ounces, 10.9 ounces
- Gender: Kids’, Kids’
To find your size, position a tape measure just above your ears and about 1 in. above your eyebrows. Keep the tape level to measure the circumference around the largest part of your head and then find the corresponding size in the Technical specs info.









