VIDEO Bell GT6 RD ULTRA-4C/EC Carbon Fiber
Pre-Order: Shipping in Sept 2026
FIA 8859-2024/SA2025 Helmet
The Bell GT6 RD ULTRA-4C/EC delivers pro-grade safety and communication in a lightweight, closed-cockpit package. Drawing design inspiration from the aggressive HP6 platform, it features a wide eyeport for integrated visibility, a premium carbon composite shell, and all-in communications and hydration solutions built in.
4C: Carbon Composite 4 Layer Construction
On Bell helmets, “4C” stands for “Carbon Composite 4 Layer Construction.” It refers to the shell technology Bell uses: a 4-layer carbon composite laminate. This blend typically combines carbon fiber with other advanced fibers (like Kevlar® or fiberglass) in multiple layers. The purpose is to deliver a shell that is lighter than fiberglass alone, but more affordable and versatile than Bell’s top-end full carbon HP series shells (like HP7 or HP77 which use pure carbon/advanced aerospace layups).
EC: Electronic Communications Integration
The "EC” in model name means the helmet incorporates an electronic comms and hydration kit integration. The closed-face GT6 RD ULTRA-4C/EC integrates the latest technology from ZeroNoise® including advanced electronics, high power speakers, and noise canceling microphone to assure outstanding performance, sound insulation, and communication efficiency.
Ultra-Light Carbon Construction Meets Pro Racing Preparedness
Built with superior carbon-glass composite materials, the helmet keeps fatigue low and track awareness high. Integrated ZeroNoise® electronics, high-power speakers, and a noise-canceling mic ensure outstanding comms and sound insulation. The face piece is also optimized for ventilation and hydration—perfect for endurance and closed-cockpit racers.
Bell GT6 RD ULTRA-4C/EC Carbon Fiber SA2025 Helmet Size Chart
Bell GT6 RD ULTRA-4C/EC Carbon Fiber SA2025 Helmet Details
Design Derived From: HP6 RD-4C platform
Shell: Ultra-lightweight carbon-glass composite
Certifications: FIA 8859-2024 and Snell SA 2025
Eyeport: Wide for expanded visibility
ZeroNoise® Comms: Built-in speakers, noise-canceling mic, and heavy-duty coil cable with Nexus connector
Hydration: Integrated drink-tube channels and side connectors
Ventilation: Extraction vents + optional top/side forced-air intake compatibility
HANS Anchors: Factory-installed for added safety
Color & Finish: Gloss Carbon
Interior: Dark grey, high-strength FR fabric (alt interior colors by special order)
Sizes: 54 (6¾) through 61+ (7 ⅝)
Bell GT6 RD ULTRA-4C/EC Carbon Fiber SA2025 Helmet Features
Ultra-lightweight Premium Carbon shell
Equipped with Bell Racing SmartLock Mechanism
Wide eyeport opening for optimal vision in closed cockpit cars (Shield type SE06)
Advanced multi-density, multi-piece liner to maximize energy absorption and impact performance
Integrated channels in face piece offering multiple options to install drinking tube, valves and radio systems
Extraction vents to maximize cooling and air circulation
Integrated technology from ZeroNoise® including advanced electronics high power speakers, and noise canceling microphone
Factory installed Hans anchors as original equipment
Optional Top and Side air intakes available for use with external cooling system
Compatible with interior parts kits and drinking tube kits
Bell GT6 RD ULTRA-4C/EC Carbon Fiber SA2025 Helmet FAQs
What does “4C/EC” mean?
Which helmet series does this come from?
What communication system is included?
Can I add forced air later?
Is this track-legal?
What customization options exist?
Race with lightweight carbon construction, pro-level comms, and cockpit-focused visibility.
