Bilstein Rear GM Metric 4 Comp / 6 Reb 20-PRY-NB-2XS Zamp's FX-4 Motocross helmet is

Zamp's FX-4 Motocross helmet is packed with features and value

180 in Orifice

Improved softer leather

Satin Outer Layer

Bilstein Rear GM Metric 4 Comp / 6 Reb 20-PRY-NB-2XS Zamp's FX-4 Motocross helmet isBilstein SMX Series shock absorbers are specifically designed for motorsports applications that mandate the use of stock mount (OE) suspension components. Designed using 46mm monotube technology, the shocks are available in a variety of damping options including dry kit designed specifically to provide the best options for a variety of race track types and conditions. Built in the USA with precision components and top quality controls, the SMX Series