REDS Racing 921 Speciale™ – The Next Evolution in Off-Road Power

At REDS Racing, we take pride in pushing the limits of innovation and developing cutting-edge technology. That’s why we’re thrilled to introduce our latest evolution: the 921 Speciale™ competition engine for the off-road category!

As always, REDS Racing stays at the forefront of technology, and this time we’ve taken things a step further. The 921 Speciale™ is a limited-edition engine featuring:

✅ A completely redesigned 9-port cylinder ⚙️ ensuring extremely linear torque
✅ Excellent fuel efficiency ⛽, further optimized compared to our 7-port design
✅ Even more torque with impressive power output 💪
✅ At the same time, extremely drivable and easy to manage on the track 🎯

This engine represents the next level of performance, combining power, efficiency, and drivability in a unique special edition package.

• New 9-Port Cylinder: Higher performance, excellent fuel efficiency, great drivability with more torque
• RTX Rotating Backplate: Reduces friction between the connecting rod and backplate, improving stability at idle, boosting engine power, and optimizing fuel efficiency for extended runtime
• High-Protection Bearings: Double-seal front bearing for durability and stability + 9-ball rear ceramic bearing for reliability under extreme conditions
• Balanced DLC Crankshaft: Optimized for maximum performance and longevity

• ENBU0041: 921 Speciale™ Limited Edition
• ENBU0041B: 921 Speciale™ Limited Edition – Pre Break-In Service by Mario Rossi

To maximize the performance of your 921 Speciale™ engine, we recommend pairing it with:

• Glow Plug: REDS TS4
• Exhaust System: 2143 X-ONE High Torque Plus Pipe
• Fuel: 16–30% nitro, 8–10% oil
• Break-In Fuel: 12% oil