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2020 Beta RR 4T 400 Dirt Bike Review Specs

The new 2020 Beta RR 4T 400 Dirt Bike is among those powerful dirt motorcycles known for their high performance. The bike has got powerful 385.4ccm engine that delivers instant throttle response so that riders can quickly leave everyone behind. The lightweight chassis helps in easy maneuvering, while the low seat height aids the rider in reaching the ground soon. The review of the all-new 2020 Beta RR 4T 400 Dirt Bike is written below.

2020 Beta RR 4T 400 Dirt Bike

2020 Beta RR 4T 400 Dirt Bike – Features and Price

Engine Features

The new 2020 Beta RR 4T 400 Dirt Bike comes with a 385.4 ccm single-cylinder and four-stroke engine. The bore of 86mm, a stroke of 63.4mm, and a compression ratio of 12.5:1 give excellent performance throughout the ride better than 2020 Beta RR 4T 350. The new fuel system contains a carburetor with Synerject dual electronic injection while the two oil pumps ensure the perfect lubrication. The friction might be reduced to its minimum level.

Also Read: Top Ten Best Dual Sports Bikes to Buy

Chassis Features

The new 2020 Beta RR 4T 400 Dirt Bike comes with Molybdenum steel with a double cradle split above the exhaust port. The suspension system comprises a hydraulic USD fork with a 48mm shaft, while the rear one has a mono-shock with a progressive compound lever. The braking system includes a single disc with a front diameter of 260mm, and a rear one has 240mm.

Also Read: Top Ten Fastest Dirt Bikes in the World

2020 Beta RR 4T 400 Dirt Bike – Technical Specifications

Engine and transmission

Displacement 385.4 ccm (23.52 cubic inches)
Engine type Single cylinder, 4-stroke
Compression 12.5:1
Bore x stroke 86mm x 63.4mm (3.4inches x 2.5inches)
Fuel system Carburetor. Synerject dual electronic injection
Fuel control Double Overhead Cams/Twin Cam (DOHC)
Ignition DC-CDI without trembler including variable ignition timing, Kokusan type.
Lubrication system Two oil pumps
Cooling system Liquid
Gearbox Six-speed
Transmission type, final drive Chain
Clutch New Wet multidisc


Frame type All-new Molybdenum steel including double cradle split above the exhaust port
Front suspension Hydraulic USD fork including ø48mm shaft
Front-wheel travel 295mm (11.6 inches)
Rear suspension Monoshock with progressive compound lever
Rear-wheel travel 290 mm (11.4 inches)
Front tire 90/90-21
Rear tire 140/80-18
Front brakes Single disc
Diameter 260 mm (10.2 inches)
Rear brakes Single disc
Diameter 240 mm (9.4 inches)

Physical measures and capacities

Dry weight 107.5 kg (237 pounds)
Seat height 940 mm (37 inches)
Overall height 1270 mm (50 inches)
Overall length 2180 mm (85.8 inches)
Overall width 815 mm (32.1 inches)
Ground clearance 320 mm (12.6 inches)
Wheelbase 1490 mm (58.7 inches)
Fuel capacity 9 liters (2.38 gallons)
Reserve fuel capacity 3.8 liters (1 gallon)

Other specifications

Color options Red/white/Black
Starter Electric


In the end, team Bikes Catalog would love to say that the new 2020 Beta RR 4T 400 Dirt Bike is an impressive and powerful dirt motorcycle. It features a high-performance engine that offers instant throttle response, while the lightweight and slim chassis are very helpful in easy maneuvering. Thus, the new 2020 Beta RR 4T 400 Dirt Bike is truly for champions.

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