The Lazer Z1 KinetiCore is the flagship road race helmet from one of cycling's most trusted helmet brands. Built-in KinetiCore rotational impact protection earns a 5-star Virginia Tech safety rating without adding weight, making the Z1 an elite choice for road racers, gran fondo riders and fast commuters who refuse to compromise on safety or ventilation. This listing is the Harbor Grey colourway in size Small (52–56cm), with full compatibility with the Lazer Aeroshell aero cover.

Highlights

• KinetiCore rotational protection: Controlled crumple zones moulded directly into the EPS liner absorb both direct and rotational impact forces — no separate MIPS insert required, keeping weight low.
• 5-star Virginia Tech safety rating: Independently tested and ranked among the top road helmets for impact protection.
• 33 vents for class-leading airflow: Strategically placed openings deliver exceptional cooling efficiency so you stay comfortable even on hot, hard efforts.
• Advanced RollSys fit system: Thumb-wheel adjustment with vertical-height slide delivers a precise, personalised fit for a wide range of head shapes.
• Polygiene Biostatic padding: Antibacterial treatment keeps the interior fresh over long rides and repeated use.
• Aeroshell & LED light compatible: Accepts the Lazer Z1 KinetiCore Aeroshell (sold separately) for added aerodynamics or wet-weather protection, and mounts a Lazer LED rear light directly.
• Eyewear-friendly design: Rear basket securely docks cycling sunglasses temples during off-bike moments.
• Sustainable construction: Uses 40g less plastic than the previous Z1 MIPS model, with recycled strap materials.

KinetiCore technology

Rather than adding a separate rotational-impact liner, Lazer integrates KinetiCore directly into the EPS foam shell as a series of small controlled-crumple blocks. In a crash these blocks deform in a controlled sequence to dissipate both linear and rotational energy, reducing forces transmitted to the brain. The result is lighter weight and a lower-profile fit compared with a MIPS-equipped alternative — with comparable or superior protection in standardised testing.

Fit and comfort

The Advanced RollSys retention system sits at the upper rear of the helmet and adjusts in two planes — circumference via thumb-wheel and vertical height via an internal slider — giving a floating, secure feel across a broad range of head shapes. A floating headband channels airflow around the forehead, and the stitched straps include the same Polygiene antibacterial treatment as the removable padding.

Compatibility & fit

This is the Size Small helmet, fitting head circumferences of 52–56 cm. Aeroshell cover sold separately (Lazer Z1 KinetiCore Aeroshell, S/M size). LED rear light sold separately and mounts directly to the helmet without an adapter. Refer to the Lazer sizing guide to confirm fit before purchase.