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  • Regular price $129.95

Tough, durable, stylish and protective, the Giro Radix Mountain Bike Cycle Helmet delivers everything the demanding trail mountain biker could ever want.

An impact-absorbing inner layer is paired with a burly outer shell so you can be confident that in the event of a fall, the Radix Mountain Bike Cycle Helmet has got you nicely covered. 25 Wind Tunnel™ vents, with sculpted internal channelling, suck in fresh air as you're riding, keeping your head cool and comfortable even during the most intense mountain biking session. Add to that anti-microbial Cool-fit pads to keep sweat and bacterial build-up at bay and all-day riding comfort is a given.

Deep coverage
P.O.V.™ visor
Cool-fit anti-microbial padding
Full-wrap In-Mold polycarbonate shell with EPS liner
Roc Loc® 5 fit system
25 Wind Tunnel™ vents with internal channelling


 S:  20”–21.75” / 51–55cm 

M:  21.75”–23.25” / 55–59cm 

L : 23.25”–24.75” / 59–63cm 

XL:  24”–25.55” / 61–65cm

In-Mould Technology

The in-mould construction fuses the tough polycarbonate outer shell with the helmet’s impact-absorbing foam liner. This fusion process allows Giro to sculpt better ventilation systems, so in-mould helmets can be lighter and cooler than traditional helmets.

Roc-Loc® 5 fit system

Giving you the perfect fit here is the industry-leading Roc-Loc® 5 fit system. Combining comfort and stability for your head without adding any extra weight to your ride, it keeps close to your skull for unbeatable security, with an easily adjustable fit that can be dialled quickly and easily using only one hand.

P.O.V.™ Visor

Wave goodbye to fixed position visors with the P.O.V.™ visor system. Three different positions let you get your view just right when riding, and with each stage indexed you can click into place quickly and easily with one hand, even on the go. If you want to pull up your goggles then a fourth higher position makes space on the brow of the helmet.

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