Built for gravity-fuelled riding, the Lazer Chase KinetiCore is a downhill-certified full-face mountain bike helmet that delivers serious protection without serious bulk. At 990g it punches well below its weight class, and its KinetiCore integrated crumple zones earn it a five-star Virginia Tech safety rating — the highest awarded to any full-face helmet. Whether you're charging the bike park or pinning steep enduro stages, the Chase KC gives you the confidence to commit.

Highlights

• KinetiCore integrated protection: EPS foam crumple zones built directly into the shell manage both direct and rotational impact forces without adding a separate liner system.
• ASTM DH certified: Meets ASTM F1952 downhill racing standards, plus CPSC and EN 1078 — cleared for competition and bike park use worldwide.
• Breakaway visor: Engineered to release cleanly on impact, reducing rotational forces transmitted to the neck.
• 11 ventilation ports: Internal channelling draws air through the shell to keep you cool on long descents and hot days.
• Double D-ring closure: A proven, rattle-free chin strap system that stays put on the roughest terrain.
• Neck brace compatible: Works with leading neck brace systems for riders who run additional protection.
• Plush sweat-wicking liner: Removable and washable padding for lasting freshness through long days of riding.

KinetiCore technology

Unlike bolt-on MIPS-style systems, Lazer's KinetiCore protection is moulded directly into the EPS foam of the helmet. Controlled crumple zones deform on impact to absorb and redirect energy — addressing both direct impacts and the rotational forces that are a leading cause of serious head injury. The result is a cleaner, lighter helmet with no moving parts and no compromise on protection.

Construction & comfort

The Chase KC uses a combination of EPS foam, polycarbonate, fibreglass, carbon fibre, and nylon to balance stiffness, weight, and energy absorption. A flexible front grid protects the face from trail debris and splash while maintaining airflow. The deep rear coverage and padded interior create a secure, comfortable fit for hours in the saddle.

Compatibility & fit

Size XS fits a head circumference of 52–54 cm. The Chase KC is neck brace compatible. Always measure your head circumference and consult the Lazer size chart before ordering. Certifications: CPSC, EN 1078, ASTM F1952. Replace your helmet after any significant impact, even if no external damage is visible.