RC10 ‘89 Stealth Car Masami Edition Kit, ASC-6043

Team Associated RC10 ‘89 Stealth Car Masami Edition Kit, ASC-6043

At the 1989 IFMAR 1/10 Off-Road World Championships in St. Ives, Australia, Masami Hirosaka drove the groundbreaking RC10 “Stealth” car to victory. This prototype from Team Associated featured a revolutionary Stealth® 3-gear transmission, offering smoother and more efficient power delivery compared to the standard 6-gear setup. Built around a lightweight chassis and equipped with a specially tuned Reedy motor, Masami’s RC10 combined cutting-edge technology with his signature smooth, aggressive driving style.

Masami’s win in Australia didn’t just earn him another world title — it changed RC racing forever. The success of the Stealth RC10 set a new standard for off-road design, and the Stealth transmission would later become the foundation for future Team Associated vehicles. Hirosaka’s performance, driving a car most competitors hadn’t even seen before, remains one of the most iconic moments in RC history.

The 1989 Team Associated Stealth Car prototype was a radical evolution of the RC10 platform, purpose-built for top-tier competition at the IFMAR World Championships in Sydney, Australia. Designed in secrecy, it featured a number of innovative elements that set a new benchmark in 2WD off-road buggy performance. Most notably, it introduced the Stealth transmission—a compact, three-gear unit with internal slipper clutch. Unlike the bulkier six-gear design of the original RC10, the Stealth transmission offered smoother, more efficient power transfer and a lower center of gravity.

The prototype also utilized a narrowed and milled aluminum chassis for reduced weight and improved agility. The front end was modified with new geometry for better steering response, while the rear featured longer suspension arms and revised shock positioning to improve traction and stability. Lightweight materials such as carbon fiber and titanium were used extensively, showcasing a design philosophy that prioritized speed, balance, and durability.

The Stealth Car had a lower profile body and sleek, streamlined aesthetics that matched its high-performance internals. Though never sold as a complete kit, the design innovations of the 1989 Stealth Car directly influenced future Associated models and reshaped competitive RC buggy engineering for years to come.

Features
CNC machined aluminum chassis
Laser etched chassis logo
Carbon fiber top plate
Hard anodized shock bodies
Hard anodized shock caps
Universal driveshafts
Ball bearings
89’ Stealth® car front bulkhead
89’ Stealth® car rear arm mounts
Stealth® car wide front suspension arms
CNC chassis standoffs
Stealth® transmission
Titanium turnbuckles
89’ Stealth® car world championship replica tires
89’ Stealth® car rear suspension arms
Adjustable battery mounts (shorty or standard)
89’ Stealth® car front and rear shock towers
89’ Stealth® car pink rear wheels
89’ Stealth® car rear wheel adaptors
89’ Stealth® car style wing mount system
89’ Stealth® car rear bulkhead
89’ Stealth® car style rear wing with side panels
89’ Masami world championship livery decal sheet
Replica Masami battery strap and ESC mount
89’ Stealth® car long stroke shock springs

Required to Complete
6-cell NiMH or 2S LiPo for radio-controlled car
Radio control battery charger
1:10 scale radio control electronic speed control
1:10 scale 540-size electric RC car motor
2-channel RC surface transmitter and its batteries
2-channel receiver
Pinion gear
Steering servo
Lexan paint for body
Glue for tires.
Tools

Due to ongoing R&D, photos may not match final kit. Vehicle shown on these pages equipped with items NOT included in kit: Reedy motor, battery, ESC, servo, receiver, and pinion gear. Assembly and painting required.