RX 4T 450

Bore x stroke

97.0 x 60.8 mm (3.8 x 2.4 inches)

Category

Cross / motocross

Clutch

Wet multi-disc

Color options

Blue/red/white

Compression

13.5:1

Coolant

1.00 litres (0.26 US gallons)

Cooling system

Liquid

Diameter

260 mm (10.2 inches)

Displacement

449.3 ccm (27.42 cubic inches)

Dry weight

104.5 kg (230.4 pounds)

Engine details

Titanium valves

Engine oil

SAE 10W/45

Engine type

Single cylinder, four-stroke

Fork tube size

48 mm (1.9 inches)

Frame type

Molybdenum steel with double cradle split above the exhaust port

Front brakes

Single disc. Double-piston floating caliper. Wave disc.

Front suspension

Hydraulic USD close cartridge fork

Front tire

80/100-21

Front wheel travel

305 mm (12.0 inches)

Fuel capacity

7.00 litres (1.85 US gallons)

Fuel control

Double Overhead Cams/Twin Cam (DOHC)

Fuel system

Injection. Elldor electronic injection, 46mm

Gearbox

5-speed

Ground clearance

330 mm (13.0 inches)

Ignition

Kokusan.

Lubrication system

2 oil pumps

Model

Beta RX 4T 450

Overall height

1270 mm (50.0 inches)

Overall length

2170 mm (85.4 inches)

Overall width

825 mm (32.5 inches)

Rear brakes

Single disc. Single-piston floating caliper. Wave disc.

Rear suspension

Monoshock with progressive compound lever

Rear tire

110/90-19

Rear wheel travel

305 mm (12.0 inches)

Seat height

945 mm (37.2 inches) If adjustable, lowest setting.

Spark plugs

NGK LKAR 8A-9

Starter

Electric

Transmission type

Chain (final drive)

Valves per cylinder

4

Wheelbase

1485 mm (58.5 inches)

Wheels

Wire spoked with blue rims.

Year

2025