







RACING STAR
Helmet HJC RPHA 12 Red Bull Austin GP II MC21
Product information
HJC RPHA 12 Red Bull Austin GP II MC21 Helmet. The RPHA 12 is the combination of development and performance improvements to be a demanding and innovative predecessor of the successful RPHA 11. Made of a mix of carbon fibers, aramid and PIM EVO natural fibers with ECE 22-06 approval; it offers excellent comfort, protection and high lightness even at high speeds. The RPHA 12 stands out for its sporty style with aerodynamic profile and rear spoiler, the effective ACS adjustable ventilation system, the wide visor for a greater field of vision, and the double buckle closure for maximum security.
History of design
The Red Bull Grand Prix of the Americas design by David Designs features a deep metallic shell finish highlighted by intense red and blue veining, carefully aligned to convey a powerful sense of speed and fluidity. Inspired by the event's retro aesthetic, this bold design captures the adrenaline-pumping, vibrant spirit of one of the most thrilling races on the calendar. Across the top, the iconic Red Bull Grand Prix of the Americas branding combines with the HJC logo, creating a piece that unites racing, style, and heritage in a single visual expression.
External shell
- Shell made with a premium matrix and integrated PIM EVO: Reinforcement materials, including carbon and aramid fibers with natural fibers that provide greater impact resistance, greater comfort, and a lighter helmet.
- The aerodynamic structure of the shell has been designed to offer extreme performance at top speeds, thanks to its profile and rear spoiler, which have undergone rigorous wind tunnel testing.
- 4 shell sizes for a better fit in each size.
Ventilation
- ACS ventilation system consisting of 4 air inlets and 3 extractors for excellent airflow through the helmet's interior through strategic channeling that allows hot air to be evacuated quickly. It features adjustable inlets on the front and top with a low profile that reduces noise.
Screen
- Wider HJ-42 visor for a wider peripheral field of vision. It offers 99% UV protection and features an anti-scratch and anti-fog coating. Pinlock® compatible (included).
- The screen action system provides smooth ratcheting motion and improved sealing and soundproofing with the 2-way system.
- The screen mechanism allows for quick, tool-free assembly and disassembly of the screen.
Interior
- Advanced antibacterial fabric interior padding provides increased comfort during long sessions and excellent moisture and sweat wicking thanks to its quick drying properties. The crown and cheek pads are fully removable and washable.
- Emergency side padding removal system, allowing quick and easy removal of the padding in the event of an accident.
Other features:
- Double D buckle closure system.
- Nose and chin guard included.
- Pinlock® and smoked screen included.
- Weight: 1300 gr. in size M.
- Approval: ECE 22-06
Pairs well with
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RACING STAR
Top-quality biker gear for every adventure.
Ride with confidence, comfort, and unbeatable style.
From jackets to helmets — built for real riders.
Racing Star — where passion meets performance.

RACING STAR – YOUR ULTIMATE BIKER COMPANION
At Racing Star, we bring you premium-quality biker jackets, gloves, helmets, suits, and boots designed for true riders who live for the thrill of the open road.
Every product is crafted for performance, comfort, and safety, so you can conquer every journey with confidence.

Experience the Spirit of the Ride
At Racing Star, we craft gear that blends style, comfort, and ultimate protection.Ride fearless. Look bold. Stay protected.
Product details
Premium Quality Materials
Every Racing Star product is crafted from high-grade leather and durable fabrics for maximum strength, comfort, and protection. Built to handle every ride and every challenge.
Designed for Performance
Our biker jackets, gloves, helmets, and suits are engineered for flexibility and safety, ensuring a perfect balance between movement and impact resistance.
Style Meets Function
Ride in style with gear that looks as bold as it performs. Racing Star combines sleek design with reliable performance because true riders deserve both.
Weather Resistance
Ride confidently in all conditions. Our gear is water-resistant, windproof, and heat-balanced, keeping you protected whether it’s rain or shine
Safety You Can Trust
Every product meets international safety standards, featuring reinforced padding, impact zones, and secure fastenings because your safety is our top priority.
FAQs
Please read our FAQs page to find out more.
What makes Racing Star products different from others?
Racing Star products are built with premium materials, advanced protection technology, and rider-focused design. Every item blends performance, comfort, and style tested for real-road durability.
Do you use genuine leather in your biker jackets?
Yes! We use high-quality genuine leather and advanced synthetic materials in select designs to ensure maximum protection, flexibility, and long-lasting comfort.
Are Racing Star suits and gloves suitable for all weather?
Yes! Our gear is designed for multi-season use, featuring ventilated linings, waterproof layers, and thermal comfort, keeping you ready for any adventure.
Can I customize my biker jacket or suit?
Yes, Racing Star offers custom sizing and personalization options on select products. Contact our team for special requests.
How can I contact Racing Star support?
You can reach us anytime through our Contact Us page or email support@racingstar.com — we’re happy to help with sizing, orders, or product details.