Product Price Weight (kg) Shell Material Ventilation Visor Type Noise Reduction (dB) Bluetooth Compatibility
Bell Race Star DLX Flex
US
£709.38 3.57 lbs 3K carbon fiber Multiple vents (chin, forehead, top, rear exhaust) adjustable via latches Snug cheekpads and neck roll to occlude noise

A race-derived full-face helmet with a 3K carbon shell, Bell FLEX multi-density impact liner and a ProTint photochromic Panovision shield. It offers strong ventilation, magnetic cheekpads and speaker pockets, suited for riders who want race-level protection with everyday comfort.

KLIM Krios Pro
US
£541.39 1450 g Carbon fiber Fully adjustable chin and forehead vents Refined vents and liner for quieter ride; removable chin curtain included

The KLIM Krios Pro is a lightweight, carbon-fiber adventure helmet with a Koroyd energy-absorbing core, large ventilations and a photochromic Transitions visor included. It suits ADV riders who want a highly ventilated, versatile 50/50 helmet for both off-road and highway use.

Bell Moto-10 Spherical
US
£403.22 1.6 kg 3K carbon fiber Thermal Exchange Airflow System (T.E.A.S.) Reported to be relatively quiet for its ventilation (reduced bike noise)

The Moto-10 Spherical is a pro-level motocross helmet with Spherical MIPS technology, a segmented 3K carbon shell, and an aggressive ventilation system (T.E.A.S.) for cooling. It suits racers and serious off-road riders seeking top protection and ventilation.

Shoei GT-Air II
US
£373.37 3.79 lbs Multi-Ply Matrix AIM (composite fibers and resin) Three intake and five exhaust vents Improved airtight window beading and noise-reducing ear pads

The Shoei GT-Air II is a premium sports-touring full-face helmet with a composite AIM shell, Pinlock-ready CNS-1 shield, integrated drop-down sun visor, and improved aerodynamics for reduced noise. It suits touring and sport-touring riders who want comfort, low noise and seamless integration with a Sena SRL2 comms unit.

Schuberth C5
US
£484.64 3.8 lbs DFP fiberglass with carbon reinforcement Multi-channel ventilation with inlets in forehead and chin Engineered for low noise; described as very quiet

The Schuberth C5 is a premium modular touring helmet with a lightweight, aerodynamic shell, integrated sun visor, extensive ventilation, and built-in prep for a communication system. It suits long-distance riders who want comfort, low noise, and easy integration of Bluetooth intercoms.