The ultimate expression of 4-stroke power in the world of motocross according to Beta. The RX 450 4T is designed for those who want powerful thrust, managed by advanced electronics that include four-level Traction Control, to deliver all the power to the ground in all conditions.

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.

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.

Two engine maps (dry and wet) work in synergy with Traction Control to offer a complte electronic package.  You can quickly and intuitively customise the engine's character, always finding the perfect setting for the track and your riding style.

The RX450 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.

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 corning and the stability required at high speeds.

To master the power for the 450, you need a braking system that's up to the challenge.  The Nissan system offers the power and sensitivity needed to ensure sharp braking and precise control, allowing you to manage your speed with absolute confidence.

A high performance 4-stroke engine generates considerable thermal stress.  The reinforced radiators are sized to ensure optimal cooling evein the most extreme racing conditions, ensuring consistent performance from the first lap to the last.

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.

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.