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It is much stronger than fiberglass and can be used to reinforce fiberglass helmet shells
They are constructed of Shimano's Spiral X and Hi-Power X blanks that are extremely strong yet resist twisting
Most helmets are constructed with an outer polymer shell that encapsulates EPS (expanded polystyrene) foam
On top of that, it provides decent protection in emergency situations
Modern DOT helmets are the result of years of impact testing, material science, and real-world crash data
Position the pieces for the bottom of the box so that theyre flush with the front and back, which will leave a quarter-inch gap between them
US$ 28.93
US$ 25.59
US$ 29.32
