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The Radiator AF R UNO BIG embodies the excellence of cooling in competition karting. He is Designed and manufactured 100% in Italy by the AF Radiator teams, using HIGHTECH MATERIALS FROM THE WORLD COMPETITIONS GT, ensuring extremely high level of performance, reliability and finishing.
Developed to meet the requirements of the most severe conditions, the R UNO BIG offers a upper cooling capacity, while maintaining a perfectly mastered weight of 2,39 kg, ideal for high-level competitions in summer.
The Radiator AF R UNO BIG benefits from advanced technical solutions:
Wavy closer and ultra light, considerably increasing the heat exchange surface
Double-flow system with "U" forced recirculationensuring homogeneous and constant heat dissipation of heat
Entrance and outlet of V-shaped water, designed to direct the fluid on the entire radiator mass
Maximum operation of the entire radiation surface for optimum thermal efficiency
Each radiator is hand-made, with special attention given to every detail, ensuring consistent quality and high performance.
The Radiator AF R Uno Big is recommended for all categories of kart:
OK
Kz
It is used and recommended in the Karting Championships, the Italian Cup, the Italian Championship, the European Championship, the World Championship, as well as WSK, ACI and FIA competitions.
Summer
This model is specially designed to provide maximum thermal stability at high ambient temperatures and very demanding races.
Dimensions: 450 × 300 × 50 mm
Weight: 2,39 kg
The radiator AF R UNO BIG is delivered complete with:
Cap
CNC machined aluminum supports, cut in the mass
Supports available in Red, blue and silver
100% Italian manufacture
HIGHTECH MATERIALS FROM THE GT COMPETITION
Very large cooling capacity
Excellent thermal stability by strong heat
Hi-quality craft finish
Suitable for national and international competition
To ensure optimal performance, preserve the reliability of the engine and ensure a compliant installation, it is recommended that the radiator assembly be entrusted to a karting professional, in particular for a competitive use.
| Features | R UNO STANDARD | R UNO BIG | H1 standard | H2 Big | Af2 |
|---|---|---|---|---|---|
| Mark | AF RADIATOR | AF RADIATOR | AF RADIATOR | AF RADIATOR | AF RADIATOR |
| Range | Premium ultra light | Premium strong heat | Versatile | High performance summer | High-end competition competition |
| Manufacturing | 100% Italy | 100% Italy | Italy | Italy | Italy |
| Categories | OK / KZ | OK / KZ | OK / KZ | OK / KZ | OK / KZ |
| Technology | Double flow + recirculation in "U" | Double flow + recirculation in "U" | Bi-flow | Bi-flow | Flow optimized by geometry |
| Cooling principle | Corrged close + V Input / Output | Corrged close + V Input / Output | Forced recirculation in U | Forced recirculation in U + increased mass | Large radiation surface |
| Radiant heart | High ultra light density | High density increased volume | Light | Extra Light (upper volume) | High efficiency |
| Cooling capacity | Very high | Very high | Very good | Excellent | Very high |
| Thermal stability | Excellent | Excellent | Very good | Excellent | Excellent |
| Performance by strong heat | Very good | Excellent | Good | Very high | Very high |
| Aerodynamic | Optimized | Optimized | Optimized | Optimized | Advanced |
| Dimensions | 430 × 240 × 40 mm | 450 × 300 × 50 mm | 435 × 242 × 48 mm | 435 × 290 × 48 mm | 440 × 300 mm |
| Weight (kg) | 1.6 kg | 2,39 kg | 1.94 kg | 2,25 kg | Non-communicated |
| Cap | Included | Included | Included | Included | Included |
| Media | CNC aluminum | CNC aluminum | CNC aluminum | CNC aluminum machined in the mass | Standard accessories |
| COLORS MARKETS | Red / Blue / Silver | Red / Blue / Silver | Red / Blue / Silver | Red / Blue / Silver | Standard |
| Ideal seasons | All seasons | Summer | Spring / fall / winter | Summer | Summer / strong heat |
| Recommended use | High level competition | Strong heat competition | Competition / training | Summer competition | Elite competition |
R UNO STANDARD : Ultra light premium radiator, ideal for maximum performance with weight gain.
R UNO BIG : Large capacity version, designed for strong heat and summer competitions.
H1 standard : Versatile and light radiator, excellent value for money for wide use.
H2 Big : High performance radiator dedicated to high temperatures.
Af2 : High-end radiator focused on maximum thermal performance and advanced aerodynamics.
To ensure optimum efficiency and preserve the reliability of the engine, the assembly must be carried out by a karting professional, in particular for a competitive use.
The NGK hood TS1225 blue is a essential accessory Designed for NGK High Performance Candlesincluding models R7282. Fabricated high quality ceramic, this cap guarantees a optimal electrical connection, while offering a Resistance and exceptional durability.
Thanks to his specific design, the NGK TrS1225 blue cap ensures a Perfect transmission of the spark, reducing the risk of loss of signal or parasites, for a Maximum engine performance.
Key that allows you to unscrew the original cap of the Dellorto 30mm VHSH carburettor and unscrew the jet of the maximum for a quick replacement, without having to use screwdrivers or other tools.
The Standard Kart H1 radiator is the brand new radiator fromAF RADIATOR, equipped with a system Bi-flow, allowing a perfect engine cooling thanks to the Forced recirculation in the form of "U" and Radiant Heart Light.
This design has been specially developed to optimize the circulation of coolant, improve heat exchange and maintain stable engine temperatures, even under intensive race conditions.
With this system, the radiator retains more water inside, ensuring high thermal efficiency while maintaining a Reduced weight of only 1.94 kg.
The rear brake disc OTK Ø180x13mm self-ventilated BWD is a high-end component, specially designed for Group Karts OTK from 2025 (Tony Kart, Kosmic, Redspeed, virtually known, Carlos Sainz, Gillard, etc.). This disc self-ventilated offers a optimal braking powera exceptional durability and an Resistance to thermal and mechanical stresses, essential for competitive performance.
Made in Treated and treated steelthis disc is Optimized for active cooling, thanks to his Integrated ventilation fins, which allow a rapid dissipation of heat. This guarantees a Constant and reliable brakingeven during the most intense sessions.
Oil Xeramic 2T Kart Racing Castor is a high-tech oil specifically designed for the optimal lubrication of two-weather karting engines, air cooling or water. Developed in collaboration with the best engine manufacturers and approved CIK, this oil is ideal for competitions involving high speed loads and high temperatures. Synthetic ingredients and additives have been carefully chosen to ensure optimal lubrication and very long-lasting performance.
The 50mm x 100 rear wheel hub - 8a hq birelart is a high-end component, specially designed for Birelart Chassis, RicCiardo, Charles Leclerc, Kubica and LGK. This hub double clamping offers a Ultra-secure fixation the rear wheel, guaranteeing a optimal stability and an exceptional durabilityeven in the most demanding conditions of competition.
Made in High strength aluminum alloy, this hub is light, robust and precise, ensuring a optimal power transmission and an Vibration reduction. His Double clamping system eliminates any risk of loosening or playing, which is crucial for the security and the performance on the track.
The Radiator AF R UNO BIG embodies the excellence of cooling in competition karting. He is Designed and manufactured 100% in Italy by the AF Radiator teams, using HIGHTECH MATERIALS FROM THE WORLD COMPETITIONS GT, ensuring extremely high level of performance, reliability and finishing.
Developed to meet the requirements of the most severe conditions, the R UNO BIG offers a upper cooling capacity, while maintaining a perfectly mastered weight of 2,39 kg, ideal for high-level competitions in summer.