Troy Lee Designs D4 Polyacrylite Helmet – Linear Blue Medium MFPN=160-0129000000 Zero stack uppers press into

Zero stack uppers press into head tube with very little stack height

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Secure slip-over torque function for clockwise/anti-clockwise control with easy setting of selectable tightening torques (2

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Troy Lee Designs D4 Polyacrylite Helmet – Linear Blue Medium MFPN=160-0129000000 Zero stack uppers press intoTroy Lee Designs D4 Polyacrylite Helmet Linear Blue Medium. The 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