Giro Register MIPS II Helmet, Universal Adult Hub Allows the use of a

Allows the use of a CINCH 30mm spindle crankset with PF30 bottom bracket shell

Zero degree rise to keep you low and in control

stamped steel cogs held together with 123 high-strength stainless steel pins

Compound: GRIPTON®

Brakes are pre-bled

Giro Register MIPS II Helmet, Universal Adult Hub Allows the use of aOverview Six years ago, Giro set a new standard in quality, look, and feel in a recreational helmet with the original Register. The Register II takes this to the next level by bringing styling and venting of Giro's highest end road helmets into this lightweight in mold helmet. With a removable visor, an adjustable fit system, and the Mips&reg Evolve Core rotational energy management system, the Register II Mips is a best in class recreation helmet.