Stilo ST6 KRT Carbon Kart Helmet | FIA 8878-2024 & Snell K2025

The Stilo ST6 KRT Carbon Kart Helmet is the pinnacle of adult karting head protection — a full carbon fibre P-Matrix shell certified to both FIA 8878-2024 and Snell K2025, the two most demanding standards in senior karting. At 1150g, it delivers serious protection without unnecessary weight, across an exceptional 9-size range (54–64cm) for a precise, close fit.

This is the helmet you choose when you want the best. Built on Stilo's flagship ST6 platform — the same architecture trusted by professional racing drivers worldwide — the KRT Carbon brings that level of engineering to the kart track.

Why the ST6 KRT Carbon Stands Apart

• Dual certified: FIA 8878-2024 & Snell K2025 — the highest current standards for senior karting, recognised by Kartsport NZ and Karting Australia
• 1150g P-Matrix carbon shell — full carbon fibre construction, not composite, delivering maximum rigidity and protection at competitive weight
• ST6 platform — Stilo's flagship racing helmet architecture with advanced ventilation, premium padding, and precision fit engineering
• 9 sizes (54–64cm) — one of the widest size ranges available in a carbon kart helmet, ensuring a precise fit for every head shape
• Multi-shell construction — three shell sizes for a genuinely close fit, not just padding adjustments

Who Is This Helmet For?

• Senior and open class kart racers requiring FIA 8878-2024 or Snell K2025 certified head protection
• Competitive kart racers in NZ and AU who demand the highest standard of protection and fit
• Racers who want a premium carbon helmet with dual certification for maximum event eligibility

Kartsport NZ & Karting Australia Compliance

The ST6 KRT Carbon holds dual type approval: FIA 8878-2024 and Snell K2025. Both Kartsport NZ and Karting Australia recognise these standards for eligible senior and open karting classes. Always confirm the specific standard required for your event, class, and series with your organiser before purchasing.

Specifications

How Does It Compare?

Frequently Asked Questions

Is the ST6 KRT Carbon legal for karting in NZ and AU?

The ST6 KRT Carbon holds dual type approval: FIA 8878-2024 and Snell K2025. Both Kartsport NZ and Karting Australia recognise these standards for eligible senior/open karting classes. Always confirm the specific standard required for your event with your organiser before purchasing.

What is the shell weight?

The ST6 KRT Carbon shell weighs 1150g — a full P-Matrix carbon fibre construction delivering exceptional rigidity and protection at a competitive weight for a senior karting helmet.

How do I choose the right size?

Measure the widest circumference of your head above the ears. When in doubt, size down. Contact Aaron Harris on +64274499654 or aaron@harriscomms.co.nz for fitting advice.

Does this helmet include intercom electronics?

No — the ST6 KRT Carbon is a kart-specific helmet without integrated intercom electronics.

What sizes are available?

The ST6 KRT Carbon is available in 9 sizes: 54, 55, 56, 57, 58, 59, 61, 63, and 64cm.

All helmets are genuine Stilo stock sourced directly through Stilo's supply chain, covered by Stilo's manufacturer warranty, and dispatched fast across NZ and AU from Harris Race Radios — NZ & AU's most experienced Stilo specialist.

Why Buy From Harris Race Radios?

Rex Harris — qualified Radio Telecommunications Engineer, Approved Radio Certifier (NZ RSM and AU ACMA), and motorsport specialist since 1975 — built one of Australasia's most respected motorsport businesses starting at the track.

Aaron Harris, Rex's son, is an active racing driver and race engineer: Bathurst 1000, Bathurst 12 Hour, Barcelona 24 Hour (1st in class, 2013), BMW Race Driver Series Champion (2011), race engineer for Earl Bamber Motorsport, TekworkX, Matt Stone Racing, and Porsche Carrera Cup Australia/Asia-Pacific/NZ. Aaron holds a MSNZ Licence Examiner appointment for helmets, racewear, FHR and HANS.

Charlie Harris — Aaron's son, engineering student at the University of Canterbury — has won NZ Karting championships. Danaka Harris, Aaron's daughter, has raced karts for four years with Aaron as her race engineer. When you buy from Harris Race Radios, you're getting advice from a family that has worn, fitted, and raced in these helmets — not just sold them.

Contact Aaron: +64274499654 | aaron@harriscomms.co.nz