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MOTORCROSS - RX 450 4T
RX 450 4T
The power of the 450 4T engine requires advanced control. Traction Control, which can be disabled and adjusted to four levels, allows you to adapt the response to any track condition, ensuring maximum traction and confidence to open the throttle without hesitation.
| Displacement | Bore | Dry weight | Ground clearance |
|---|---|---|---|
| 449,3 CC | 97 mm | 104,5 kg | 335 mm |
ELECTRONICS
Traction Control: power under control.
The power of the 450 4T engine requires advanced control. Traction Control, which can be disabled and adjusted to four levels, allows you to adapt the response to any track condition, ensuring maximum traction and confidence to open the throttle without hesitation.
POWER AND INTELLIGENCE: THE WINNING COMBINATION
The RX 450 4T is the result of the combination of two fundamental elements: the overwhelming power of its 4-stroke engine and the intelligence of a top-level electronic package. Four-level Traction Control, two engine maps and the ability to customise throttle response work together to give you full control, allowing you to transform the engine's horsepower into pure speed and winning performance.
In Detail
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TWO ENGINE MAPS
The two engine maps (dry and wet) work in synergy with Traction Control to offer a complete electronic package. You can quickly and intuitively customise the engine's character, always finding the perfect setting for the track and your riding style.
CUSTOMIZABLE THROTTLE RESPONSE
The RX 450 4T comes with four different throttle pulleys. Customize the throttle response, from more aggressive and immediate to smoother and more progressive, for a bike that's tailored to you.
4-STROKE-SPECIFIC VEHICLE
The frame and Kayaba suspension feature specific settings designed to suit the weight distribution and power delivery of the powerful 4-stroke engine. The result is a perfect balance between the agility needed for cornering and the stability required at high speeds.
NISSIN BRAKING SYSTEM
To master the power of the 450, you need a braking system that's up to the challenge. The Nissin system offers the power and sensitivity needed to ensure sharp braking and precise control, allowing you to manage your speed with absolute confidence.
RADIATORS
A high-performance 4-stroke engine generates considerable thermal stress. The reinforced radiators are sized to ensure optimal cooling even in the most extreme racing conditions, ensuring consistent performance from the first lap to the last.
EXHAUST
The HGS racing exhaust system has been developed specifically for the characteristics of the 450 4-stroke engine. It optimises the power curve, ensuring a responsive low-end and exceptional top-end performance, all with an unmistakable sound and reduced weight.
HANDLEBAR SILENT BLOCKS
The silent blocks on the handlebar are useful for dampening the vibrations of a high-performance 4-stroke engine. They increase comfort and reduce fatigue, allowing you to maintain full control and maximum concentration for longer.
Gallery Collection
Technical Specifications
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CHASSIS
▼| FRAME | Molybdenum steel with double cradle split above the exhaust port |
| Wheelbase | 1475 mm |
| Max length | 2170 mm |
| Max width | 830 mm |
| Max height | 1270 mm |
| Seat height | 945 mm |
| Ground clearance | 335 mm |
| Footrest height | 422 mm |
| Dry weight | 104,5 kg (front 51,4 kg; rear 53,1 kg) |
| Fuel tank capacity | 7,0 l |
| Cooling system capacity | 1,4 l |
| Front suspension | Hydraulic USD closecartridge fork with ø 48 mm shaft |
| Rear suspension | Monoshock with progressive compound lever |
| Shock absorber stroke | 133 mm |
| Front wheel travel | 305 mm |
| Rear wheel travel | 300 mm |
| Front brake | Wave disc ø260 mm and double-piston floating caliper |
| Rear brake | Wave disc ø240 mm and single-piston floating caliper |
| Front rim | 21 x 1,6 – 36 holes |
| Rear rim | 19 x 2,15 – 36 holes |
| Front tyre | 80/100 – 21 |
| Rear tyre | 110/90 – 19 |
ENGINE
▼| Type | Single cylinder, 2-stroke, liquid-cooled |
| Bore | 97 mm |
| Stroke | 60,8 mm |
| Displacement | 449,3 cc |
| Compression ratio | 13.5 |
| Valve train | DOHC finger follower / 4 valve, intake titanium, exhaust steel |
| Starter | Electric starter |
| ACG | Kokusan |
| Spark plug | NGK LKAR 8A-9 |
| Fuel system | Elldor electronic injection |
| Lubrication | 2 oil pumps |
| Throttle body | Ø 46 mm |
| Clutch | Wet multi-disc clutch |
| Primary drive | Z. 31/72 |
| Transmission | 5 gears |
| Final transmission | Chain |
| Engine oil | SAE 10W/50 0,8 l. + SAE 10W/40 0,8 l. |