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.
New, aerodynamic design Simpson's Lightest helmet SA2020 Certified Available in composite and autoclave cured carbon fiber Composite models are available in 9 different colors including 3 new colors: Gray, Yellow, and Copper Removable cheekpads - sizes range from .75" to 1.375" _x009d_ to allow for a custom fit Removable Top pads - sizes range from .25" to .625" to allow user to lift and lower the helmet Includes removable gel earcups Compatible with all Simpson communication kits Front chin spoiler for stabillity in open cockpit cars No front ventilation to keep dirt and debris out Top and rear vents for ventilation Optional top and top left offset forced air for cooling and fog mitigation (Coming Soon) Optional rear spoiler for more stability Comes standard with antifog, antiscratch visor. Non-Antifog clear visor available Visors available in clear, dark smoke, iridium, amber, and chrome Comes standard with premium, aluminum tear off posts compatible with 10209C, 10209CP, and 10209S Available in 2 shells and 6 sizes: XS-XXL Helmets are hand built to order in New Braunfels, TXStay safe on the track with Simpson Racing, your trusted source for high-performance motorsport safety equipment since 1959. From state-of-the-art helmets to top-of-the-line racing suits and safety harnesses, Simpson Racing has everything you need to compete safely on the race track. Racing and riding is more than what you do, it's a part of who you are. We get it, because it's who we are too. Since 1959, NASCAR, racing enthusiasts and motorcycle riders have trusted Simpson Performance helmets, head and neck restraints, harnesses, racing suits, gloves, shoes, off-road seats, window nets, drag parachutes and more to provide an unparalleled level of comfort, performance and protection.