About this product
Description
721 SUPERVELOCE PRO-X Factory Team™: The Champion’s Engine
Celebrating a Year of Success
The 721 SUPERVELOCE PRO-X Factory Team™ engine is here! Designed to reflect the pinnacle of REDS Racing’s innovation, this engine is a testament to our team’s success and dominance throughout 2024:
TQ – 2nd & 3rd place at 2024 IFMAR Worlds: Boots, Canas
TQ & WIN at 2024 European Championship: Canas
Dirt Nitro Challenge Win: Boots
Silverstate Win: Canas
Italian Race Win: Boots
Amain Challenge Win: Rivkin
TQ & 2nd Truggy Roar Nats: Fuller
TQ, 2nd & 3rd Euros Warm-up: Boots, Canas
TQ & 2nd – Montpellier GP: Canas
This engine comes equipped with the same cutting-edge technical features that powered our team to victory on the world’s toughest tracks.
Revolutionary Design by Mario Rossi
Each 721 SUPERVELOCE PRO-X Factory Team™ engine benefits from the expertise of Mario Rossi, ensuring unmatched performance:
Ultra Tuned Crankshaft and Sleeve: Special tuning by Mario Rossi significantly increases engine power while maintaining excellent fuel mileage. The crankshaft is hand-rebalanced to minimize vibration at high speeds.
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.
New Cooling Head Design: Features a lower center of gravity for enhanced car handling, superior aerodynamics for reduced drag, and improved cooling efficiency.
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.
Performance Tailored for Champions
The 721 SUPERVELOCE PRO-X Factory Team™ engine is built for competitive racing, combining raw power with smooth drivability:
Linear Power Delivery: Thanks to the Extra Tuning by Mario Rossi, the engine offers exceptional drivability while delivering top-tier performance.
Optimized for Buggy: Designed for 1/8 scale vehicles, this engine excels on tracks where power is the key to success.
Fuel Efficiency: Our primary goal was to develop a high-speed engine capable of exceptional fuel mileage, setting it apart from competitors by ensuring fewer pit stops and consistently longer runtimes on the track.
Available Models
ENBU0039R: 721 PRO-X Factory Team™
ENBU0039RB: 721 PRO-X Factory Team™ – 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 7
Outlet Ports 1
Front Bearing 7x19x6 Double Seal
Rear Bearing 14×25.4×6 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] > 9:00
Operating Temperature [°C] 110-130
Recommended Accessories
To maximize the performance of your 721 SUPERVELOCE PRO-X Factory Team™ engine, we recommend pairing it with:
Glow Plug: REDS TS4
Exhaust System: 2113 X-ONE Torque Pipe
Fuel: 16-30% nitro, 8-10% oil
Break-In Fuel: 12% oil
Why Choose the 721 SUPERVELOCE PRO-X Factory Team™?
The 721 SUPERVELOCE PRO-X Factory Team™ engine represents the pinnacle of REDS Racing technology. Whether you’re aiming for victory on the world stage or dominating your local track, this engine is your ultimate choice for:
Unparalleled power and performance.
Innovative features designed for reliability and drivability.
Proven success with REDS Racing’s championship-winning team.
Technical Data
Kit Contents

Ball Driver Hex Wrench 2.5 X 120mm
Pre-Painted Body Shell Nitro Tracker
HPI Racing Super Star Wheel Gunmetal Rear (120X75Mm)
Center Diff Plate Kyosho Inferno Mp9 Readsyet (If443b)
Kyosho 12x18x4mm (2) bearings
Fastrax Aluminium Steering 5-Spoke Wheel - Sanwa, Futaba, Flysky
Washers m4x10x0.8mm (10) Kyosho
Kyosho Gear Differential Grease #1000 CPS (15g)
Flat Head Tp Screws M3x10mm (10) Kyosho
Kyosho Autoscale Mini-Z Toyota Corolla Levin Ae86 Red-Black (Ma020)
Kyosho 3x6mm (10) blue bombers
Koswork Leisure Transmitter Bag (250x140x210mm)
Suspension rings for Kyosho UMW705 (UB008-01)
Kyosho Inferno Mp11 Front Lower Suspension Holder (Fr)
Kyosho Ultima rb7.5 Shock Springs d1.2x5.25x44 / 3.6 (2)
1:8 Truggy Wheel AIR yellow (4)
Body Shell Kyosho Legendary Serie Tomahawk/Ultima Jj
BLACKZON Slyder MT Wheels/Tires Assembled (Black/Yellow)
1:8 BUGGY WIND SOFT PRE-MOUNTED YELLOW 2PCS "H COMPOUND"
1:8 BUGGY VULCANO ULTRA SOFT 4PCS RUBBER BULK "H COMPOUND"
1:8 BUGGY CHESTE CLAY SUPER SOFT PRE-MOUNTED YELLOW 2PCS "CH COMPOUND"
1:8 BUGGY MIURA HARD RUBBER 4PCS RUBBER BULK "H COMPOUND"
Kyosho Autoscale Mini-Z Skyline Gt-R Nismo R32 White (Ma020n-L)
Tyres Kyosho Ep Ultima Sb Dirtmaster (4)
BLACKZON Pinion Gear 16T With Screw Set
Fuel Tank Bush Set Kyosho Inferno Mp9-Mp10 Mp11
Kyosho Ultima rb7.5 Crank Arms Shaft
Suspension Shaft 27mm Kyosho Ep Ultima Sb Dirtmaster (2)
Main Chassis Kyosho EP Fazer Kobra-Rage VE-Dirt Hog