HJC RPHA 1 Helmet Size:XL the Terra features the same

the Terra features the same commitment to quality and detailed design you've come to expect from 509

Lug position and spacing designed for maximum traction without packing - even in the worst conditions

55% COTTON 45% POLY

Soft outer rubber provides traction on paved surfaces

Zipper vents on the main body allow you to get an instant cool-down if the ride gets too hot

HJC RPHA 1 Helmet Size:XL the Terra features the sameThe RPHA 1 was designed and developed after several years of focused efforts and crucial feedback from top world class athletes in MotoGP. HJC's top engineers went to work and created a race bred helmet that is truly worthy of top race circuits around the world. The RPHA 1 is the very same model used by HJC's world class athletes in both MotoGP and WorldSBK, and HJC is set to finally launch it into full production with FIM homologation (FRHPhe 01) the