The Lazer Z1 KinetiCore is the lightest road race helmet in Lazer's lineup, built for cyclists who refuse to compromise between weight, ventilation, and protection. This bundle includes the matching Aeroshell cover — giving you the versatility to close off the front vents for wet weather, cold conditions, or aerodynamic advantage at a moment's notice. The integrated KinetiCore technology earns a 5-star safety rating without adding the bulk and weight of a separate MIPS liner.

Highlights

• 5-star KinetiCore protection: Controlled crumple zones built directly into the EPS liner absorb both direct and rotational impact forces, without a separate plastic slip layer.
• Ultralight construction: Claimed weight of 220g — 24% lighter and 70g less plastic than the outgoing Z1 MIPS.
• 25 ventilation ports: Class-leading airflow keeps you cooler than most competitors; tested to run 3% cooler than wearing no helmet at all.
• Aeroshell included: Polycarbonate shell cover snaps over the front and side vents for wet-weather protection, cold-weather comfort, or an aerodynamic edge on race day.
• Advanced RollSys fit system: Thumb-wheel micro-adjustment at the rear, with vertical height adjustment to suit different head profiles.
• Floating headband: Contours to your forehead for all-day comfort while maintaining airflow across the brow.
• Polygiene Biostatic padding: Antimicrobial treatment keeps helmet pads fresh across long training blocks.
• Eyewear-friendly design: Dedicated vent channels dock sunglasses or cycling glasses securely when not in use.
• LED taillight compatible: Rear port accepts an optional Lazer rechargeable LED light (sold separately).

KinetiCore Technology

Where previous Lazer helmets used a separate MIPS slip-plane liner, KinetiCore integrates controlled-crumple zones directly into the EPS foam. These elastic inserts compress and redirect energy during a crash — managing both linear and rotational forces in one lighter, cleaner construction. The result is a 5-star Virginia Tech STAR rating with no compromise in ventilation or fit.

Aeroshell

The included Aeroshell is a polycarbonate shell that clips over the Z1's front and side vents in seconds. Use it to shed rain and mud on wet days, retain warmth in cooler temperatures, or tighten up aerodynamics for a criterium or time-sensitive stage. When conditions clear, it peels away easily and stows in a jersey pocket.

Compatibility & Fit

Size Large fits a head circumference of 58–61 cm. The Advanced RollSys system provides both horizontal micro-adjustment (thumb wheel) and vertical positioning to dial in the correct fit. The Z1 KinetiCore is compatible with the optional Lazer Universal Rechargeable LED Taillight and Turnsys Winter Kit (sold separately). Please refer to the Lazer helmet sizing guide to confirm your size before purchase.