According to Schuberths own website info the C3 is supposed to be quieter
From webBikeWorld
Schuberth makes some other very impressive claims for the new C3. They said it's also "The world's quietest flip-front helmet" at a claimed 84 dB at 60 MPH, which, if true, would make it even quieter than the Schuberth S1 Pro (see our review of the Schuberth S1 and the Schuberth R1 and, while you're at it, the Schuberth J1), which has a claimed 85 dB at the same speed.
This would also make it 2.5 dB quieter than the C2. If true -- and I have no reason to doubt them -- this will be impressive indeed!
From Schuberths website :
Smaller, lighter and even quieter: The Schuberth C3
Schuberth presents the next generation of modular (flip-up) helmets
Braunschweig/Magdeburg, 15. August 2008 - From the creator of the modular (flip-up) helmets, the next generation arrives at the beginning of September: The Schuberth C3. The new flip-up helmet produced by Germany's premium manufacturer, is fascinating due to its very sporty appearance for flip-up helmets. The C3 is available in two helmet bowl dimensions and thanks to its compact design it is the smallest flip-up helmet on the market.
With the C3, Schuberth proudly presents a world champion: A flip-up helmet has never before been so small and more compact than this new development by the helmet manufacturer based in Magdeburg. With its successful synthesis of sportiness and comfort, the Schuberth C3 impressively disproves the notion that the development of a flip-up helmet must automatically mean a bulky headgear design. Besides this, for the first time the company offers its premium flip-up helmet in two helmet bowl dimensions so that the helmet can be adjusted even more individually and personally to your head circumference.
These characteristics in the development of the flip-up helmet are approved by the signature of Formula 1 legend Michael Schumacher. Schuberth's "chief tester" has already pushed the development of helmets in formula 1 in the direction of smaller, lighter, and quieter.
Schuberth's technical manager and chief of development, Oliver Schimpf: “The first exchange of ideas on the subject of flip-up helmets with Michael was at January's formula 1 tests in Barcelona in 2005. His ideal flip-up helmet concept originated on a Ferrari napkin. This was the foundation stone for the development of the C3. The result is the smallest flip-up helmet in the world”.
With its excellent shock absorption value, the C3 additionally proves that a sportycompact design and safety can indeed be successfully blended into one. Otherwise a commitment from "Mr. Perfect" Michael Schumacher would not have been conceivable: “I only ride a motorcycle myself under the highest safety conditions. That's why I am supporting Schuberth in their development of motorbike helmets that are even safer and better: so that all motorcyclists on the street profit from it.“
The Schuberth C3's compact size is not the only aspect that distinguishes it from its predecessor. The Schuberth engineers have managed to reduce its weight by ten percent. The sporty flip-up helmet weighs in at 1570 grams in its entirety, complete with its equipment such as an acoustic collar and solar shield visor. Long-distance riders will be particularly happy: Every spared gram provides a perceptible relief on long journeys.
CEO Marcel Lejeune, chairperson of the management board: “With the C3, we have achieved a fantastic creation which will inspire riders not only because of its new sporty look but also because of its pleasantly comfortable low weight.“
The Quietest Modular (flip-up) Helmet in the World One of the most important innovations with the C3 is the further development of the top range aero-acoustics: When riding at 100 km/h, noises only penetrate through to the ear of the rider at a mere 84 dB (A) thanks to the acoustic collar. With this, the flip-up helmet breaks its own record set 8 years ago and made top of its class, setting the standard against which the competition are measured. As a result of the reduced noise level, the helmet facilitates concentration as well as it increases the attention capabilities of riders: warning signals are better recognized. Very much a plus, above all on longer journeys and which also signifies safer rides in the city.
Top Aerodynamics from the In-house Wind Tunnel After the slogan that there is not too much comfort, the Schuberth engineers have spent a lot of time in the wind tunnel with the C3. These luxurious tests are reflected in an optimized styling of the helmet bowl. With its top aerodynamics, the Schuberth C3 behaves absolutely direction solid and pendulum neutral even at high speeds. Because of its compact form, the C3 is also pleasantly comfortable when looking over the shoulder.
Effective Ventilation System and Excellent Visor Qualities Thanks to its well thought-out ventilation, at 100 km/h, up to seven litres of fresh air flows into the helmet per second and provides for a cool head even with in tight and hot cornering. To protect the rider from the bright sunlight, the integrated solar visor can be lowered just as with its predecessor. The patented operating unit of the sun shield mechanism sits ergonomically on the left edge helmet. Further features make this helmet a very modern and innovative head protection system: The anti-fog Pinlock?Visor is fitted as standard as is the Anti-Roll-off-System (A.R.O.S.). The Schuberth C3 is equipped with the comfortable Micro-Lock Ratchet fastener for easy handling when putting on the chin strap.
Schuberth Helmets: High-Tech from Germany Schuberth, with its headquarters in Braunschweig and Magdeburg, has been developing and producing high-end top notch head protection-systems for over 70 years. With a huge number of innovative products, the company counts as one of the world's leading manufacturers of formula 1 and motorcycle helmets. In particular, our experiences gained from the elite class of motor sport continuously provide new impetus for product developments which define an authoritative class of head protection systems.
So I don't know.....
