AGV Pista GP RR Helmet - Assen 2007 - Medium 2118356002009M Gold Series Gnarly Exhaust Pipe These stacks create a 6%

These stacks create a 6% power increase for $129

Supports triple post tear-offs

easily exchangeable extension stops to help prevent hyper-extension injuries

Hidden heavy-duty DuraTech™ ballistic nylon reinforcements to prevent knee brace wear

Shield has a positive stop to resist unintentional opening

AGV Pista GP RR Helmet - Assen 2007 - Medium 2118356002009M Gold Series Gnarly Exhaust Pipe These stacks create a 6%Accessories include: hydration system, interior customization kit (top crown pad, rear crown pad and cheek pads), tear off kit and vent covers Titanium Double D retention system Shell 100% carbon fiber Shell and 5 density expanded polystyrene (EPS) structure designed to minimize rotational accelerations (FIM homologated) Collarbone safe profile Ventilation 2 rear extractors 5 front vents Metal air vents and extractors Aerodynamics Detachable PRO