Simpson Racing SD1 Helmet - XS - CopperExtra Small - Copper - SA2020 Karting Ring Gear Bolt Kit -

Ring Gear Bolt Kit - 7/16-20 in Left Hand Thread - 0

Rivet - Small - 3/8 in Head - 3/16 in Steel Mandrel - 1/4 to 3/8 in Grip Range - Aluminum - Yellow Paint - Set of 250

Zamp's RZ-65D Premium DIRT HELMET with new Snell SA2020 rating on a Lightweight Large Carbon Fiber weave

5 in Tall - 75 Durometer - Foam - Black - Each

970 in OD - 1

Simpson Racing SD1 Helmet - XS - CopperExtra Small - Copper - SA2020 Karting Ring Gear Bolt Kit -Simpson'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.