Bell Sidetrack II MIPS Youth Helmet

Why We Like It

The Bell Sidetrack II MIPS sets the standard for youth bike helmets. MIPS technology — used in most premium adult helmets — reduces the rotational forces responsible for concussions in angled impacts, which account for the majority of real-world bike falls. The Fusion In-Mold shell is both light and protective, and the fit dial makes self-adjustment easy for kids.

Pros & Cons

Pros

• MIPS liner reduces rotational forces — the most common injury type in bike falls
• Fusion In-Mold construction: lightweight polycarbonate shell bonded to EPS foam
• Universal fit dial allows tool-free adjustment across head sizes

Cons

• Multi-sport certified but not dual-certified for skateboarding (ASTM F1492)
• Premium price versus non-MIPS options

Score Breakdown

Products were evaluated on safety certifications and impact protection, fit system and retention, comfort and ventilation, versatility for multiple sports, and value.