Bell 4Forty Air MIPS Trail Helmet improves ventilation, adds premium features
The Bell 4Forty Air MIPS overhauls the original, reasonably-priced 4Forty Trail Helmet with a new shell, MIPS liner and some premium features usually reserved for more expensive helmets. True to its name, the new shell opens up fourteen larger vents for improved air flow. Bell 4Forty Air MIPS Helmet The Bell 4Forty Air MIPS is
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