Compatible with 11 and 12-speed drivetrains

Who's this item for: Perfect for Trail and Enduro

Its innovative formula is designed to encapsulate any surface dirt to prevent scratching

Chain Compatibility: Suits 10 or 11speed chains (10sp chain works on 9sp drivetrain)

100 Percent Altis Gravel Helmet - XS/S - Black Exclusive Compatible with 11 and 12-speedThe new 100% Altis. Engineered for the demands of the modern day gravel rider. Lightweight, breathable with class leading performance and safety all with a modest budget in mind. Who's this item for: This is marketed as a Gravel helmet but it's just as well suited to XC, Trail, and Road riding. Construction: High Density EPS foam injection and moulded with polycarbonate. Rotational liner: The Altis uses the Smartshock Rotational Protective System