Bell GT6 RD-4C Ultra Carbon Racing Helmet - SA2025 / FIA8859

• SA2025 and FIA8859-2024 homologated for closed-cockpit circuit racing
• Ultra-lightweight premium carbon shell, derived from the HP6 RD-4C design
• Wide eyeport opening for extended vision (Shield type SE06)
• Integrated ZeroNoise electronics: earpiece input and noise-canceling microphone
• Bell SmartLock shield mechanism
• Multi-density, multi-piece liner for maximized energy absorption; extraction vents for cooling and airflow
• Factory-installed HANS anchors — ready for FHR use out of the box
• Compatible with HP6 RD interior kits for radio and drinking-tube setups; optional top/side air intakes for external cooling
• Sizes 54–61+, plus XXL, 3XL, and 4XL; Black colorway

The Bell GT6 RD Ultra RD-4C is built for closed-cockpit racing where communication clarity and cabin noise matter as much as impact protection. It carries the same aggressive shell geometry as the HP6 RD-4C, with a wide eyeport that preserves peripheral vision despite the closed-face design, on Bell's Ultra Series premium carbon shell.

ZeroNoise electronics are integrated into the helmet, with a dedicated earpiece input and a noise-canceling microphone built in for clean radio calls and improved sound insulation over an open-face setup. A multi-density, multi-piece liner handles energy absorption, extraction vents manage cooling and airflow, and integrated face-piece channels leave room to run a drink tube or valves alongside the radio hardware.

Bell's SmartLock mechanism secures the shield, and HANS anchors come factory-installed as original equipment, so there's no aftermarket bracket to source before running a head-and-neck restraint. Optional top and side air intakes are available for drivers who want to add an external cooling system, and the helmet is compatible with HP6 RD interior parts kits for radio and drinking-tube setups.

SA2025 and FIA8859-2024 homologated, the GT6 RD Ultra RD-4C comes in Black, sized 54 through 61+, plus XXL, 3XL, and 4XL.