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To determine how strong the chinbars are, we also performed a chinbar-deflection test, similar to a Snell test for shell rigidity. We wondered whether the chinbars had the integrity to pass this test without being an integral part of the helmet shell. It turns out that they do. None approached the allowed 60mm deflection. The most deflection we measured was 47mm on the Arrow, with the Schuberth close behind at 43mm. The HJC, Lazer and Shoei deflected the least, all at 28mm. We also tested the chinbars for impact absorption by removing them from the helmets, placing them on the headform and subjecting them to a six-foot drop. There is no applicable U.S. standard for motorcycle helmets that any of them claim to meet here, but the Zeus transferred notably more energy, which isn't surprising because it has no padding in its chinbar. The headform felt 660gs, compared to 200 for the best-performing Shoei and 201 for the Lazer, both of which have substantial padding in the impact area. The second worst was the HJC (409gs), but it has an excuse because we impacted the exact center of the chinbars, where the HJC has its latching mechanism. Its chinbar has substantial padding on either side of the latch and would have almost certainly performed well if we had attacked it there.
http://www.motorcyclecruiser.com/accessoriesandgear/flip_face_helmet_comparison/index.html
It looks as if I just need to read on young man, read on....
05 BA, Goodwood Green, Chevy605 pipes , ai removed, Freak kit, K&N pods, 145 main/42 pilot / 3 turns out, bags and screen
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