Simpson Racing SA2020 Diamondback Racing Helmet7.375 - Black Hobby Stock Shock - SMX Series -

Shock - SMX Series - Monotube - Steel - Black Paint - Rear - 4-6 Valve - GM A-Body / F-Body / G-Body - Each

Suspension Tube - Scalloped - 15 in Long - 8 mm x 1

840 in Thick Rotor - 3

Brake Pressure Gauge - 0-1000 psi - Mechanical - Analog - Dual Gauges - Full Sweep - 1-1/2 in Diameter - 1/8 in NPT - White Face - Case Included - Kit

470 in - Duration 309 / 314 - 110 LSA - 1000 / 5500 RPM - Small Block Chevy - Kit

Simpson Racing SA2020 Diamondback Racing Helmet7.375 - Black Hobby Stock Shock - SMX Series -A major revision to our Simpson Diamondback for 2021 combines a new Italian composite shell with a shorter chinbar and changes to the visor mounting for improved fit and function while also providing enhanced impact protection. Helmet ships with one clear face shield installed, additional face shields may be purchased separately.