Simpson Racing SD1 Helmet - M - CarbonMedium - Carbon - SA2020 Bandolero Battery - Lithium-ion - 16V

Battery - Lithium-ion - 16V - 500 Cranking amps - Threaded Terminals - Top Terminals - 5

crafted for durability and precision

Fitting - Bulkhead - 1/8 in NPT Female O-Ring Seal - Aluminum - Black Anodized - Each

290 in Bore - Tapered - Billet Aluminum - Black Anodized - Each

Hose Braid Spreader - 3 AN-4 AN PTFE Hose - Aluminum Handle - Blue Anodized - Each

Simpson Racing SD1 Helmet - M - CarbonMedium - Carbon - SA2020 Bandolero Battery - Lithium-ion - 16VSimpson's, lightest and most aerodynamic helmet, the SD1 is a premium helmet at a reasonable price. The helmet is tailored towards open wheel dirt track racing with no front vents and a front chin spoiler.