Originally posted by Spoon
ok after looking at most of these posts, many of you guys are in agreement the arai is on of the best. my brother has an arai i just dont remember which one he has. anyway i came across the arai quantum f. anyone heard of that particular model?
Spoon, the differences in Arai's is all in the shell shape, they have 3 different shapes, go here to read up on the details:
http://www.araiamericas.com/home.html
here's a snip about the shells:
WHAT'S THE DIFFERENCE BETWEEN THE SHAPES?
It comes down to a basic fact: the shape of the head - the relationship between length and width - are as important as head size in determining the right helmet for you a helmet:
1. The traditional Arai fit - the "Long Oval" - For heads whose length is distinctly narrow side-to-side, combined with a longer front to back measurement. Arai's Long Oval shell shape is currently available in the Signet, Renegade and Tracker GT series.
2. The transitional fit - the "Round Oval" - For heads that are distinctly rounder, the length and width being almost even. Arai's Round Oval shell shape is currently available in the Quantum series. (The RX-7 series has a "relaxed" Round Oval shell shape, which is not quite as pronounced as the Quantum's.)
3. The bridge fit - the "Intermediate Oval" - For heads with a round shape, but with considerably more forehead length. This shape "bridges" the gap between the two previous shapes. Arai's Intermediate Oval shell shape is currently available in the Astral series.
Then just figure out what shape head you have. For me the Signet was the best because I have a very long and narrow head.