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R5R RACER

HIGH TORQUE

The perfect synthesis of inovation, high quality and great performance at a mid range street price.
The 3.5cc offroad R5R Racer is one of the most advanced and innovative products on the market. Equipped with the best technology to improve reliability and guarantee the best performance on all terrains. R5R Racer tuned by M.Rossi is a revolutionary product 100% Made in Italy at reasonable price. 
"REDS Racing R5R is a real beast. It provides high torque, incredible power, and good runtime. This is a race bred engine you can use in your Truggy, and also in Buggy when you need the extra power.”

 

Cody King

WHAT’S INSIDE

R5R Racer tuned by M.Rossi guarantees the same performance as a Pro engine at reasonable price. 
The Racer is equipped with: HCX horizontal carburetor, silicon filled and tuned crankshaft, sleeve with 5 inlet ports and classic exhaust port, hih sealing front bearing, rear steel high quality chrome steel bearing. All parts are matched, measured by Mario within certain tolerances, hand built by him personally.
Horsepower

LONG STROKE

 
High Torque

5 PORTS CLASSIC

 
High Performance

FLAT BILLET PISTON 

 

Higher Idle Stability

HORIZONTAL CARBURETOR

 

High Reliability

HIGH QUALITY BALL BEARINGS

 

Mario Rossi

HANDMADE, TUNED AND ASSEMBLED

 

ADVANCED CARB SYSTEM

The revolutionary carb features a differently positioned top end needle, rather than pointing diagonally upwards, it is now horizontally positioned much lower down. HCX Horizontal carb main features: higher idle stability, more precise tuning, easier access to high speed needle, higher mid/top range power.
 

LIGHTWEIGHT & LOW GRAVITY CENTER

We designed the new REDS Factory Tuned line to be not only more powerful and reliable but lighter and with lower gravity center than ever before. To do that, we couldn’t just shave a millimeter here, a gram there. So we started from scratch, redesigning each essential part like crankcase, cooling head, combustion chamber and Black Diamond coated backplate.
 

HANDMADE, TUNED AND ASSEMBLED

All parts are matched, measured by Mario Rossi within certain tolerances, hand built and Tuned by him personally. The engine leaves our factory with a hand inspection of all components and compression is checked.

SPECIAL FEATURES

LONG STROKE

Horsepower
R5R crankshaft is surprisingly strong and reliable thanks to our special steel and heat treatment. 
Our special silicone filling reduces the inertia to rotation.
 

5 PORTS CLASSIC

High Torque
R5R sleeve design and timing features high torque and controllable power delivery in order to make the engine extremely drivable, suitable for every type of track and to help reduce fuel consumption.

FLAT BILLET PISTON 

High Performance
Our flat piston matched to a specific combustion chamber guarantees high performance and low consumption. Lightweight, durable and reliable is the standard quality of our connecting rod. The slim shape is designed to minimize aerodynamic friction. 

HIGH QUALITY BEARINGS

High reliability

The new high sealing and high reliability made in Japan front ball bearing ensures high idle stability. The 100Cr6 Swiss Made rear bearing ensures longer life and low friction at high temperatures.

TECH SPEC

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