Troy Lee Designs D4 Polyacrylite Helmet Roamer Magenta, X-Large mountain-shifter-part 6 mm x 22 mm

6 mm x 22 mm (6 mm diameter bolt hole and 22 mm wide)

combined with an XCR X2 caliper you have the benchmark lightweight cross county brake

perfect balance between weight and protection

20g CO2 cartridges contain a medium charge suitable for high-volume gravel tires

Troy Lee Designs D4 Polyacrylite Helmet Roamer Magenta, X-Large mountain-shifter-part 6 mm x 22 mmThe reigning king of full face helmets, the D4 range expands with a Polyacrylite model packing the same safety and comfort features as the premium carbon and composite models into a price conscious shell. Details make the D4 the most coveted full face in mountain biking, including Mips C2 brain protection, an air intake system for ventilation, and an unmatched anatomical fit. Mips C2 system and advanced Polyacrylite shell for rotational impact