Includes:

• (1) RC10 '91 Stealth Car Masami Edition Kit
• (1) Masami Hirosaka Decal Set
• (1) Clear ProTech II Body and Wing
• (4) Front and Rear Modular Racing Wheels
• (4) Team Associated Racing Tires
• (1) 7075 Aluminum Chassis
• Full Hardware and Instruction Manual

Needed To Complete:

• (1) 6-Cell NiMH or 2S LiPo Battery (7.4V)
• (1) 2-Channel Transmitter & Receiver
• (1) 540-Size Motor
• (1) Electronic Speed Control
• (1) Steering Servo
• (1) Compatible Battery Charger
• Paint for Body
• Tools for Assembly

Specifications:

Masami’s RC10 Stealth Car A RACE CAR, NOT A TOY.
The Team Associated RC10 Stealth car that captured the 1991 IFMAR 1/10 Scale Off-Road World Championship in Detroit, Michigan has become one of the most iconic race-winning platforms in RC history.

Driven by Masami Hirosaka, this legendary car showcased
cutting-edge engineering, precision handling, and a forward-thinking chassis layout that pushed the limits of performance at the time. The RC10 Stealth Car featured a double deck chassis paired with the now-famous Stealth transmission, which offered smoother power delivery, improved efficiency, and enhanced durability on the demanding track surface. Its carefully tuned suspension geometry, adjustable camber links, and race-optimized shock package allowed Masami to dial in exceptional grip and stability throughout the event.


Masami’s driving skill combined with meticulous setup work made this RC10 stand out among competitors, securing a historic victory that further solidified Team Associated’s dominance in the racing world.

The win not only demonstrated the evolution of competitive RC car design but also influenced future generations of off-road racing platforms. Today, the 1991 RC10 Stealth is celebrated by collectors, racers, and enthusiasts alike as a true milestone in RC racing heritage, representing both technical innovation and championship-winning legacy.

Bring home a piece of RC racing history and celebrate the legend of Masami Hirosaka’s unforgettable 1991 WorldsA Full race-tuned suspension with long-arm independent suspension and hard anodized coil-over shocks help smooth out the bumps. Low profile Stealth® transmission and slipper is protected by an integrated motor/heat sink.

A-Arm/Ball joint design permits static camber, camber rise, caster, ride height and spring rate tuning to suit every type of track.

Features

• CNC machined aluminum chassis
• Laser etched chassis logo
• Carbon fiber top plate
• Hard anodized shock bodies
• Black anodized shock caps
• Ball bearings
• 91’ Stealth® car front bulkhead
• 91’ Stealth® car rear arm mounts
• Stealth® car wide front suspension arms
• CNC chassis standoffs
• Stealth® transmission
• Titanium turnbuckles
• 91’ Stealth® car world championship replica tires
• 91’ Stealth® car rear suspension arms
• Replica Masami battery strap and ESC mount
• 91’ Stealth® car long stroke shock springs
• Rear Dogbones included
• 91’ Stealth car pink wheel dot decals (rear wheels are black)
• 91’ Stealth car clear lexan under tray
• 91’ Stealth car front bumper
• 91’Stealth car copper shock springs
• 91’ Stealth car silver motor bracket
• Replica Masami battery strap and ESC mount
• 91’ Stealth car legendary front shock tower geometry

Masami Hirosaka’s 1991 IFMAR Worlds Victory – Detroit, MichiganExperience the legendary 1991 IFMAR 1:10 Electric Off-Road World Championship triumph with Masami Hirosaka behind the wheel! Racing at Sterling Heights’ iconic Freedom Hill Park, Hirosaka showcased why he was already a multiple world champion, dominating the competition with precision, consistency, and unmatched skill.

Piloting the iconic Team Associated RC10 Stealth Car, Masami mastered the challenging clay track, navigating rhythm sections, berms, and jumps with flawless control. His strategic driving, smooth lines, and expert management of tires, battery, and motor set him apart from the field and secured a commanding victory in both qualifying and the A-main finals.

This win not only cemented Hirosaka’s legacy as one of the greatest off-road racers of all time but also highlighted the unbeatable performance of the RC10 platform. Collectors, racers, and enthusiasts alike recognize the 1991 Detroit Worlds as a defining moment in RC racing history — a performance that inspired car development, racing techniques, and the passion of RC drivers around the world.

The Most Successful and Legendary RC Racer of All TimeMasami Hirosaka is considered the most successful RC car racer of all time, with a record that still stands unmatched today. Born in Japan in 1970, Masami dominated the RC racing world for more than two decades, earning an incredible 14 IFMAR World Championship titles across multiple classes. His world titles include victories in 1:10th scale electric off-road (2WD and 4WD), 1:12th scale electric on-road, and touring car categories, showcasing his remarkable versatility and technical skill.

In addition to his many IFMAR world championships, Masami claimed over 50 Japanese National Championships, another record that highlights his dominance on both the national and international stages. His ability to consistently perform at the highest levels across so many different disciplines helped cement his reputation as a true legend in the RC community.

Masami first captured global attention when he won the 1987 IFMAR 4WD Off-Road World Championship at just 17 years old. Throughout his career, he was known not only for his smooth, precise driving style but also for his deep technical understanding of RC car setup and design. Working closely with brands like Yokomo and Team Associated, he helped advance RC technology and vehicle performance, leaving a lasting impact on the industry.

Masami Hirosaka’s fame extended far beyond Japan — he became a global icon for RC racers everywhere. His races were featured in magazines around the world, and many aspiring drivers studied his techniques in hopes of replicating even a fraction of his success. Even after stepping away from top-level competition in the late 2000s, Masami remains active in the RC scene as a mentor, team manager, and ambassador for the sport.

Today, Masami Hirosaka is remembered as the gold standard in competitive radio-control car racing — a true legend whose achievements may never be equaled.

Manuals/Documents

• • Instruction Manual (14.01MB)

The Secret Weapon That Shook The 1991 Worlds

Experience the legend of Masami Hirosaka’s 1991 Worlds-winning RC10 Stealth Car with this limited edition kit, combining authentic championship design, modern performance upgrades, and collectible race-ready detail in one iconic 2WD buggy.

About the RC10 '91 Stealth Car

Masami Hirosaka

Masami Hirosaka is one of the most celebrated RC drivers in the history of the sport, widely regarded as a legend in competitive RC racing. With 14 IFMAR World Championships to his name, his dominance throughout the 1980s and 1990s set the gold standard for professional RC competition. Known for his technical precision and unmatched consistency, Masami's influence helped shape modern racing techniques and vehicle development, especially through his long-standing relationship with Team Associated.

Born from Racing History

The Team Associated RC10 ’91 Stealth Car Masami Edition celebrates Masami Hirosaka’s legendary 1991 IFMAR 1/10 Electric Off-Road World Championship victory. This iconic replica brings a piece of RC racing history to collectors and enthusiasts, featuring authentic chassis layout, suspension geometry, and race-winning design elements that defined a generation of off-road performance.

True 2WD Evolution

Built around the classic Stealth transmission and double-deck chassis, this 2WD buggy delivers smooth power delivery, improved efficiency, and enhanced durability. Adjustable camber links, long-arm suspension, and a race-optimized shock package allow precise tuning for traction, grip, and stability across any challenging terrain.

Modernized Vintage Engineering

CNC-machined aluminum chassis, carbon fiber top plate, hard-anodized shocks, and titanium turnbuckles combine legendary design with modern performance upgrades. Every detail, from the replica tires to the lexan undertray, ensures authentic aesthetics while providing durability and handling that meets today’s racing standards.

Ready for the Track

This limited edition kit comes fully equipped for enthusiasts seeking a race-capable, collectible buggy. With adjustable ride height, shock tuning, and true-to-Masami setup features, it’s engineered for both display and competitive performance, allowing drivers to experience the handling that made the RC10 Stealth a world champion.

Features:

• CNC-machined aluminum chassis for strength and durability
• Carbon fiber top plate for lightweight rigidity
• Hard-anodized coil-over shocks with adjustable tuning
• True 2WD Stealth® transmission for smooth power delivery
• Long-arm independent suspension for improved handling
• Titanium turnbuckles for precise and durable adjustments
• Replica Masami Hirosaka battery strap and ESC mount
• Authentic 1991 Stealth® car tires and rear suspension arms
• Clear lexan undertray and copper shock springs included
• Limited edition kit celebrating Masami Hirosaka’s 1991 IFMAR Worlds victory