Schuberth C4 Pro Modular Helmet.

At first glance, Schuberth?s new C4 Pro seems indistinguishable from its predecessor, the C4 (read the review here), but on closer inspection several tweaks are revealed that improve comfort and fitment and address a few grumbles from C4 owners.

The C4 Pro uses the same aerodynamic, wind tunnel-tested, proprietary Direct Fiber Processing shell as the C4 — an endless spool of fiberglass is robotically cut and blown into a mold, where resin is added and the whole lot is compressed into a high-strength shell. It also shares the C4?s large visor with Pinlock anti-fog insert pre-installed, integrated drop-down sun shield and SC1 communication system compatibility. Up top is a large vent, which now includes an inner screen to prevent bugs from getting sucked into the helmet. The chinbar opens easily and latches with a reassuring snap, but when doing so the spring-loaded vent just below the visor often pops open or closed unintentionally. Fit and finish overall is excellent, as expected from a premium brand like Schuberth.
Improvements over the C4 include a rework of the ultra-plush, removable/washable CoolMax inner liner, reducing pressure points (as we noted in our review), making the glasses groove more pronounced and lengthening the ratcheting chin strap padding so that it overlaps for more comfort. The C4 Pro, like the C4, is pre-wired with speakers and a microphone for the SC1 communication system, but the Pro gets new thin...