ST5 GT Composite Racing Helmet - FIA 8859 SA2020 Size:64cm XXXL X-Series Widebands are the fastest

X-Series Widebands are the fastest responding wideband air/fuel ratio controllers in independent testing against 17 other wideband UEGO air/fuel controllers

Wiring Kit set

OBD2B - Mini Fuse

Prevents head gasket failure due to sleeve walk

ST5 GT Composite Racing Helmet - FIA 8859 SA2020 Size:64cm XXXL X-Series Widebands are the fastestStilo 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 2015 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. Details: