RENTHAL R4-2 SRS Road Chain - 530 - 130 Link C528 Supertech M10 Alloy MIPS Helmet Direct replacement top central vent

Direct replacement top central vent for Alpinestars SM5 helmets

NOTE: Must have bike side harness in order to use this kit (not included)

more aggressive exhaust note Welded from mild steel

Works great with the "GravesSpec" FTEcu map and when activated allows for smooth up-shifting and downshifting without using the clutch

Comes with all mounting hardware Features a 2

RENTHAL R4-2 SRS Road Chain - 530 - 130 Link C528 Supertech M10 Alloy MIPS Helmet Direct replacement top central ventIncorporates SRS ring system (self regulating seals) increasing chain longevity Quad riveting manufacturing process Gold anodized side plates help prevent corrosion Comes pre stretched from the factory so that frequent adjustments at the beginning of the chain's life are not needed Each chain includes master link pair of latex gloves for easy installation