Giro Roc Loc 5 helmet retention system

Giro Roc Loc 5 helmet fit system

Roc Loc 5 is the next generation fit or retention system from cycle helmet specialists Giro and, unsurprisingly, replaces Roc Loc 4. The new system is a claimed 40percent lighter than its predecessor but, according to Giro, is more durable, with examples during testing withstanding more than 6500 test cycles or three years’ riding with an average of three round trips per day.

The most eye-catching feature is the central Micro Dial button, which tightens or loosens the main band through a ratchet system operable using just two fingers in either direction. 

The ergonomically-shaped arms extending into the helmet shell are designed to work with Giro eyewear, while the two Dual Pods either side of the Micro Dial button cradle the occipital lobe to ensure a snug and secure yet comfortable fit. The helmet straps are also kept in place by the system.

Finally, there are three positions covering a 15mm range for the vertical fit bar, which locates the whole arrangement at the rider’s preferred position on the head.

Roc Loc 5 will be fitted to four Giro road helmet models for 2011: the Ionos, Atmos and Saros and the Advantage 2 aero helmet.


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