Aerodynamics
High-performance aerodynamics
The C3 Pro has been specially designed for the riding posture on normal and sportive tours and also remains stable in the airflow at high speeds (> 160 km/h). The special shape of the helmet shell with an integrated spoiler plus an aerodynamically optimised straight end edge ensure appreciably enhanced downforce. Even at higher speeds the C3 Pro develops practically no upward lift. The C3 Pro also offers reduced wind resistance and optimised directionally stability. With closed machines, the buffeting is also significantly minimised.
- Perfected aerodynamics for higher speeds
- Upward lift = 0!
- Directionally stable
- No oscillatory tendency
- No buffeting
- Spoiler integrated into the helmet shell
Acoustics
Aeroacoustics of the C3 Pro
A quiet helmet means active safety for the motorcyclist: this permits the rider to concentrate on riding – particularly at higher speeds.
Many hours in the Schuberth acoustics wind tunnel have ensured that the C3 Pro is quiet. The comprehensive acoustics package with optimised helmet shell, wind deflector and ergonomic shape of the neck padding make the C3 Pro – at 82 dBA – one of the quietest helmets of all.
- Acoustics package makes helmet quiet
- Installation of a wind deflector enables the aeroacoustics and consequently the noise level to be improved still further.
- Only 82dB(A) at 100 km per hour (with naked bikes)
Basics
Sound intensity is a phenomenon which can be explained logarithmically/mathematically. A 10 dB(A) jump in noise level is perceived by the human ear as a doubling of the noise level. Conversely a drop of 10 dB(A) is perceived as a halving of the noise level. Physically these changes in the perceived noise level already occur at an increase or decrease of 6 dB (A). This means that the increase/decrease in the physical load is higher than the one perceived.
Optimisation
Aeroacoustics are influenced by:
- the position of the helmet in the air flow, depending on the driver's size and riding posture and the motorcycle's fairing
- Fit of the helmet: differences in the anatomy of the wearer's head, neck and shoulder areas
Tips
- change the position of the windscreen
- close the gap at the bottom of the helmet, e.g. using a scarf
Ventilation
Innovative ventilation system
The C3 Pro is equipped with a further development of the proven C3 ventilation system. Thanks to the new design of the ventilation elements, the supply of fresh air is increased by up to 60%. The combination of multipath channels in the EPS foam shell and the head/chin/mouth ventilation ensure that fresh air is distributed effectively over the entire head area. The air channels in the inner shell direct the air which enters through the forehead ventilation well over the back of the head to the rear of the helmet. The low pressure prevailing at the rear of the helmet ensures that the internal air is constantly extracted through the air outlets and the special netting in the neck padding.
- Head ventilation input (adjustable in multiple stages)
- Chin vent for targeted distribution of the incoming air in the helmet
- Up to 9 litres of fresh air at 100 km/h
Effect
The highly effective ventilation system of the C3 Pro
- Chin vent
- Variable pad system
- Visor vent
- Adjustable head ventilation
- Active 2-way air extraction system
- EPS shell with ventilation segments
O2 ventilation
- In cold weather it often occurs that with closed air supply the motorcyclist's neck zone becomes sealed off by hoods, scarves or neckerchiefs.
- The concentration of carbon dioxide inside the helmet is a key safety criterion for preventing symptoms of fatigue and the thinning of breathable air.
- No negative effects on health need be feared as long as the CO2 concentration remains below 3.5 %.
- The maximum level of CO2 concentration at the workplace is 0.5 %
- Even when the neck zone is sealed off by hoods, scarves or neckerchiefs, this helmet guarantees that the CO2 concentration remains below the 0.5% limit as from a speed of approx. 30 km/h.
- In cases where the helmet is completely sealed off by hoods, scarves or neckerchiefs, the visor ought to be opened (city-travel position) for safety reasons when idling, for example at traffic lights, or travelling slowly.
SRC-System™-ready
The C3 Pro is by default equipped to accommodate the SCHUBERTH SRC-System™ C3 Pro. To guarantee ideal radio reception for you, the C3 Pro is already equipped with two integrated antennas to boost reception and a Bluetooth® connection
- Optimum reception at all times
- Bluetooth® antenna for wireless mobile, GPS and intercom connections to other SRC-System™ owners.
- FM and Bluetooth® antennas integrated into the helmet for optimum reception
Weight
Only 1,570 grams (+/-50g) in size M to protect the neck muscles
Standard
ECE-R 22.05
This test standard guarantees conformity to defined safety standards in respect of impact absorption, penetration resistance, lateral rigidity, retention system and field of vision. The approval guarantees that you have approval for all the countries in the EU and all countries which recognise the ECE standard.
All
helmets sold with clear visors NOT with a colour visor.However coloured
visors can be bought seperatly at an extra charge.Please contact