Giro Source Mips Helmet - Matte Black Size:XL It features Premium bearings

It features Premium bearings

Simply twist and lock to view apps as you ride such as Ride with GPS®

and a Giant WheelSystem lets you run tubeless tires up to 38mm for a smoother ride quality and reduced risk of flats

all fully compatible within the 13-speed platform

Replacing standard rim tape or rim strip

Giro Source Mips Helmet - Matte Black Size:XL It features Premium bearingsThe Source Mips helmet combines advanced performance and protection in a rugged, trail ready design. Featuring deep coverage with aggressive ventilation from 17 vents coupled with deep internal channeling, it helps keep things cool even when the riding gets rowdy. And with the comfort and secure feel of the Roc Loc 5 Mips fit system with Integrated Mips brain protection, plus a moto style adjustable screw in visor and full lower Hardbody durability,