ST5 GT Carbon Racing Helmet - SA2020 300ZX and the integrated O2 sensor

and the integrated O2 sensor ports maintain compatibility with your vehicle's sensors

BMW F80 M3 2015-2019

Shoulders Adjust from 10" to 73"

Three hanger rods

ST5 GT Carbon Racing Helmet - SA2020 300ZX and the integrated O2 sensorStilo has two separate shell sizes for this helmet. This allows us to make a better fitting helmet that is lighter weight. Instead of filling a very large shell with lots of padding for a size small, we have one shell size for x small to medium, and one for large and x large. Snell SA2015 vs. 2020 what's changed? The Snell SA2020 testing requirements have changed a small amount and have now become more in line with the FIA 8859 Helmet Standard.