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 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.
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.
Click image to enlarge
