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Fits Simpson: Matrix, Jr Shark; All HJC helmets; All OMP helmets; All Pre-2013 Zamp Helmets
World's most optically advanced tearoff technology
10 layers of distortion free laminated tearoffs.
3 stacks of 10 tearoffs for 30 total per sleeve.
Post hole distance is 11 1/2 "
Racing Optics XStack helmet system, featuring our patented laminated tearoff technology, is a 2 mil thick, 10 layer tearoff system that is designed for all dirt racing environments. The laminated technology creates a distortion-free optical lens. Each sleeve contains 3 stacks of 10 tearoffs, for a total of 30 tearoffs per sleeve.