The Art of RideAbility in the MX World

RX 450 4T MY 2024

The Art of RideAbility in the MX World

RX 450 4T MY 2024

RX 450 4T

In 2023, Beta’s project to expand the horizons of RideAbility has officially entered the new dimension of Motocross in Europe, first with the RX 300 two-stroke and now with the king of motocross bikes, the RX 450 four-stroke!


It is officially the first four-stroke motocross bike built by the Italian manufacturer; for enthusiasts of all riding abilities, this translates into the first chance to ride the Beta MX bike closest to the race prototype which has been competing in the MXGP World Championship for the last three years.

LOAD MORE

SPECIAL COMPONENTS

RX450 4T detail

Plastic parts

While the front shrouds, recently redesigned for RR models as well, remain unchanged in their form, the rear features a new sleek and aggressive tail which, not being a structural component, fits into the new aluminium rear sub-frame and, as previously mentioned, allows access to the filter box via a convenient connection. The fuel tank is a smaller design and has a capacity of around seven litres

RX450 monoammortizzatore

Single shot

The single shock is completely new. It is larger than the one the RR models are equipped with to provide greater support on landings thanks to greater hydraulic damping, and more consistent performance with demanding use, where the temperature tends to rise and so it becomes more complicated to maintain performance.

rx 450 4t detail

Rear sub-frame and filter box

The RX 450 has a new aluminium rear sub-frame which provides rigidity to the bike despite its light weight, providing the strength needed for demanding needs of motocross. This new component is perfectly integrated with the new filter box, never previously used on Beta models.

RX450 cambio 5M

The gearbox is five speed

The gearbox is five speed, with dedicated ratios, while the clutch (with diaphragm springs, adjustable to three positions) has been designed to withstand the stresses deriving from the engine’s high power output yet still offers a light clutch pull at the lever.

RX contralbero pistone

Crankshaft and countershaft

The crankshaft and countershaft are new, as are the cylinder, pistons and timing system, allowing a compression ratio of 13.5:1 to be achieved.

KYB forcella e monoammortizzatore

Fork and Shock

Kayaba, with 48 mm stanchions at the front and 50 mm piston at the rear.

Forcella regolabile

Fork and Shock

Both components are completely adjustable in terms of their settings, and represent an ideal compromise between rideability and performance, thanks to continuous development on the track.

Telaietto posteriore e cassa filtro

Rear sub-frame and filter box

Access to the filter remains on the left side of the bike, and is extremely easy and intuitive, as well as being tool free.

RX 450 4T detail

On the rear the new pump has a reservoir designed in order to leave more space for the exhaust layout

RX450 4T detail

Plastic parts

While the front shrouds, recently redesigned for RR models as well, remain unchanged in their form, the rear features a new sleek and aggressive tail which, not being a structural component, fits into the new aluminium rear sub-frame and, as previously mentioned, allows access to the filter box via a convenient connection. The fuel tank is a smaller design and has a capacity of around seven litres

RX450 monoammortizzatore

Single shot

The single shock is completely new. It is larger than the one the RR models are equipped with to provide greater support on landings thanks to greater hydraulic damping, and more consistent performance with demanding use, where the temperature tends to rise and so it becomes more complicated to maintain performance.

rx 450 4t detail

Rear sub-frame and filter box

The RX 450 has a new aluminium rear sub-frame which provides rigidity to the bike despite its light weight, providing the strength needed for demanding needs of motocross. This new component is perfectly integrated with the new filter box, never previously used on Beta models.

RX450 cambio 5M

The gearbox is five speed

The gearbox is five speed, with dedicated ratios, while the clutch (with diaphragm springs, adjustable to three positions) has been designed to withstand the stresses deriving from the engine’s high power output yet still offers a light clutch pull at the lever.

RX contralbero pistone

Crankshaft and countershaft

The crankshaft and countershaft are new, as are the cylinder, pistons and timing system, allowing a compression ratio of 13.5:1 to be achieved.

KYB forcella e monoammortizzatore

Fork and Shock

Kayaba, with 48 mm stanchions at the front and 50 mm piston at the rear.

Forcella regolabile

Fork and Shock

Both components are completely adjustable in terms of their settings, and represent an ideal compromise between rideability and performance, thanks to continuous development on the track.

Telaietto posteriore e cassa filtro

Rear sub-frame and filter box

Access to the filter remains on the left side of the bike, and is extremely easy and intuitive, as well as being tool free.

RX 450 4T detail

On the rear the new pump has a reservoir designed in order to leave more space for the exhaust layout

RR MY 2021

TECHNICAL DATA

CHASSIS

Frame

Molybdenum steel with double cradle split above the exhaust port

Wheelbase

1485 mm

Max length

2170 mm

Max width

825 mm

Max height

1270 mm


LOAD MORE

ENGINE

Type

Single cylinder, 2-stroke, liquid-cooled

Bore

97 mm

Stroke

60.8 mm

Displacement

449,3

Compression ratio

13.5


LOAD MORE

ENDURO
ACCESSORIES

ENDURO
EQUIPMENT