With a 13mm hardened steel shackle

Chain tool compatible with 8 through 12-speed chains

5 retention system allows for a customised fit

Environmentally friendly

Giro Radix MIPS Helmet - M - Matte Black - AS-NZS�2063-2008 Standard Envelope Shipping With a 13mm hardened steelRugged style and durability combine in the Giro Radix MIPS Helmet. Featuring a deep coverage shell with a hardbody wrap and 25 vents, Roc Loc 5. 5 MIPS retention system, and a POV visor with 15 degrees of adjustment, the Radix is a Trail style open face helmet that provides plenty of protection while helping you to keep a cool head. Note: While this is the Men's version of the Radix helmet, the fit is exactly the same as the Women's Radix helmet so