Bell 4FORTY Air MIPS Helmet - L - Matte White - Black - AS-NZS�2063-2008 Standard YGroup_7035402059821 4mm) for a quieter drivetrain

4mm) for a quieter drivetrain with improved chain wear and best drop performance

6L of storage sub 500g pack weight

recommended for Deore and Tiagra drivetrains

Supplied with premium brass cleats (with shims)

You'll need a new freehub

Bell 4FORTY Air MIPS Helmet - L - Matte White - Black - AS-NZS�2063-2008 Standard YGroup_7035402059821 4mm) for a quieter drivetrainEquipped with pro level technology but designed with the privateer in mind, the Bell 4Forty Air Mips is the first choice for your next trail helmet. The 4Forty Air Mips is equipped with pro level features designed with the privateer in mind. With a sleek new shell and 3 position visor, the benefits aren't just visibly rad but functionally significant for increased air ventilation, effective sweat management, and better goggle compatibility. Their