🚀 Introducing the 921 Speciale™
- marco6422
- Sep 1, 2025
- 2 min read
Updated: Sep 5, 2025
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 to guarantee 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, it’s 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.
FEATURES
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: Includes a double-seal front bearing for durability and stability, along with a 9-ball rear ceramic bearing for reliability under extreme conditions
Balanced DLC Crankshaft
AVAILABLE MODELS
ENBU0041: 921 Speciale™ Limited Edition
ENBU0041B: 921 Speciale™ Limited Ed. - Pre Break-In Service by Mario Rossi
TECHNICAL SPECIFICATIONS
Feature | Details |
Category | 1/8 Buggy |
Displacement [cm³] | 3.5 |
Bore [mm] | 16.2 |
Stroke [mm] | 16.9 |
Inlet Ports | 9 |
Outlet Ports | 1 |
Front Bearing | 7x19x6 Double Seal |
Rear Bearing | 14x25.4x6 9 Balls High-Durability Ceramic |
Carburetor Diameter [mm] | 7.0 (Options: 6.0, 6.5, 7.5, 8.0) |
Carburetor Type | VCX3-A Aluminum Short Needle |
Weight [g] | 345 |
Fuel Consumption [min] | > 9 |
Operating Temperature [°C] | 110-130 |
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
That 9-port redesign sounds like a real game changer — the balance between torque and drivability is exactly what off-road racers need. I’m impressed by how Reds Racing keeps finding ways to squeeze out both efficiency and power in one package. It’s like fine-tuning a Geometry Dash Lite run — smooth control and precision make all the difference when you’re pushing limits.
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That’s an exciting leap forward from Reds Racing! The 921 Speciale™ sounds like a true game-changer for off-road competition, blending power with precision in a limited-edition design. It’s impressive to see how innovation keeps raising the bar in performance technology. Just like when you order dissertation online for tailored expertise, this engine seems to deliver exactly what racers need specialized excellence built for success.