supertech r10 arius race spoiler black silver yellow fluo glossy Size:One Size aramid) with 4‑density EPS and

aramid) with 4‑density EPS and MIPS surpasses Peak Rotational Acceleration by 76%

The Primer boasts a causal last which gives it an excellent spongey underfoot feel for all-day comfort

With an engineered design for an athletic ‘race’ fit

reflective detailing

supertech r10 arius race spoiler black silver yellow fluo glossy Size:One Size aramid) with 4‑density EPS andOfficial replacement race spoiler for the Supertech R10 helmet, engineered to optimize aerodynamic stability and downforce at racing speeds. Precision manufactured to factory specifications, this genuine Alpinestars component maintains the helmet's proven wind management performance. Features Arius colorway design for seamless visual integration with Supertech R10 Team Helmets.