FEATURES
The 321 ESTREMO™ is the first engine of REDS Racing’s new X Line, combining Italian engineering with Japanese precision from O.S. Engines. This 3-port engine delivers exceptional torque and instant throttle response, ideal for technical tracks and big jumps. The cylinder design and ultra-lightweight piston optimize air-fuel mixture flow, maximizing overall power output. The AirBoost™ backplate and 21J carburetor with Venturi XFlow™ ensure easy tuning, improved efficiency, and consistent performance on every track.
Manufactured in Japan and assembled by Mario and Marco Rossi, the 321 ESTREMO™ represents the perfect fusion of Italian racing passion and Japanese craftsmanship.
REDS 321 Buggy Engine Estremo X Line DLC Ceramic 25%
<Technical Specifications>
Category: 1/8 Buggy and Truggy
Displacement: 3.5 cm³
Bore x Stroke: 16.4 × 16.4 mm
Ports: 3 intake, 1 exhaust
Front Bearing: 7×19×6 with high-performance seal
Rear Bearing: 14×25.4×6 – 9-ball high-durability ceramic bearing
Carburetor: OS 21J with Venturi XFlow
Venturi Diameter: 7 mm (optional: 6 mm or 8 mm – body 9 mm)
Backplate: AirBoost™ DLC-coated
Crankshaft: DLC-coated with two tungsten balancing weights
Weight: 345 g
Recommended Fuel: 16–30% nitro with 8–10% oil
Glow Plug: REDS TS3 or TS4
Exhaust System: 2143 X-ONE X Line
Clutch: REDS TETRA-X
