A bike as light as a schoolbag?
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ReadLightweight children's helmet with the MIPS® system, which reduces the risk of severe concussion. For head circumferences of 48–52 cm and 51–55 cm.
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Whether it’s a pump track, a trail, or a trip to the playground—the SMITH Sidekick Jr. gives kids the same style and protection as the “big” bikers. The helmet combines a classic MTB look, extended nape coverage, and the proven Mips® Safety System, which helps protect against oblique impacts and falls.
The lightweight in-mold construction combines a sturdy outer shell with shock-absorbing EPS foam into a single durable and comfortable unit. Thanks to the adjustable dial-based fit system, the helmet easily adapts to different head sizes—two children’s sizes are available for riders approximately 4 to 12 years old.
It features an integrated visor, comfortable inner padding, and twelve ventilation ports for a constant supply of fresh air. The AirEvac™ system ensures that goggles don’t fog up, and thanks to its low profile and lightweight strap, you’ll barely feel the helmet on your head.
Big style and big protection—even for little riders.
Category: Kids' MTB helmet
Construction: Lightweight in-mold construction
Safety technology: Mips® Safety System
Sizes: Youth X-Small (48–52 cm), Youth Small (51–55 cm)
Age: Approximately 4–8 years (XS), 8–12 years (S)
Size adjustment: Dial fit system (adjustable dial)
Ventilation: 12 fixed vents
Visor: Integrated
Inner lining: Comfortable padding
Straps: Single-layer, low-profile
Goggle compatibility: Yes, with AirEvac™ system
Weight: approx. 310 g (size S)
Certifications: CPSC, CE EN 1078, AS/NZS2063
Included in the package: SMITH helmet bag
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