BELL Sidetrack II MIPS Youth Bike Helmet - Secure Fit for Young Riders

In this review of the BELL Sidetrack II MIPS Youth bike helmet, the bottom line is simple: it is built for parents and young riders who want a sturdy, comfortable helmet with modern safety features. The helmet's standout feature is the integration of MIPS technology combined with Bell's Fusion In-Mold construction, which together aim to reduce rotational forces and deliver a more durable shell. For families shopping for reliable youth protection that is easy to fit and adjust, the Sidetrack II earns its place as a practical everyday riding helmet.

Key Features

• Fusion In-Molding Polycarbonate Shell: The bonded shell and EPS liner create a more robust helmet that resists separation on impact and improves long-term durability.
• Integrated MIPS: The built-in Multi-directional Impact Protection System provides a slip-plane designed to help reduce rotational forces during certain impacts.
• Ergo-Fit Adjustment: The improved dial at the rear gives a smoother, more compact method to fine-tune the fit without pushing to turn.
• No-Twist Tri-Glides and Sweat Guide: Quick-adjust fasteners keep straps flat and correctly positioned while the Sweat Guide moves moisture away from the brow and lenses.
• Multiple Youth Sizes: Available in Universal Youth and Universal Child sizing to better match head measurements and improve fit for varying ages.

Who It's For

The Sidetrack II MIPS is aimed at parents buying for children and teens who need a dependable, everyday cycling helmet with modern safety tech; its sizing options (Universal Youth 47-54 cm and Universal Child 50-57 cm) make it suitable for a wide range of young heads. Riders who value an easy-to-adjust system and a helmet that keeps sweat away from the eyes will find the Ergo-Fit dial and Sweat Guide especially useful.

It may not be the choice for adults seeking advanced ventilation or race-focused designs, and those requiring extremely compact or ultra-lightweight helmets should compare other models. Also, because head shapes vary, anyone unsure of size should measure their head before purchase to ensure the best fit.

Pros & Cons

Pros

• Comfortable, snug fit thanks to the refined Ergo-Fit dial adjustment.
• Enhanced safety with integrated MIPS slip-plane technology.
• Durable feel from the Fusion In-Molding polycarbonate shell bonded to the EPS liner.
• Practical strap management and moisture control via No-Twist Tri-Glides and Sweat Guide.

Cons

• Some customers note mixed opinions on long-term durability compared with higher-end models, so expect normal wear over time.
• Ventilation is adequate but not designed for high-performance racing where maximum airflow is prioritized.

Specifications

Brand	BELL
Model	Sidetrack II MIPS Youth
Construction	Fusion In-Mold Polycarbonate Shell bonded to EPS liner
Safety Technology	Integrated MIPS (Multi-directional Impact Protection System)
Adjustment	Ergo-Fit dial (improved dial feel)
Fit System	No-Twist Tri-Glides; Sweat Guide pad
Vents	14 vents
Sizes	Universal Youth 47-54 cm; Universal Child 50-57 cm

Our Verdict

The BELL Sidetrack II MIPS Youth helmet is a sensible pick for families who want modern impact protection and an easy, secure fit without paying for race-focused extras. Its integrated MIPS and Fusion In-Mold construction give added confidence for everyday riding, and the Ergo-Fit dial makes adjustments simple. For young riders who need a reliable, well-fitting helmet that balances safety and comfort, this model delivers good value.

Frequently Asked Questions

Does this helmet include MIPS?
Yes, the Sidetrack II has an integrated MIPS system designed to reduce some rotational forces in certain impacts.

What sizes are available for kids?
It comes in Universal Youth (47-54 cm) and Universal Child (50-57 cm); always measure the head to choose the correct size.

How do the straps and sweat management work?
No-Twist Tri-Glides keep straps flat and positioned while the Sweat Guide pad pulls moisture away from the brow and eyewear.