Beta RR 4T 400 - 2020 Specifications and Reviews

The 2020 Beta RR 4T 400 is a lightweight enduro bike designed for trail riders and off-road enthusiasts seeking nimble handling and technical prowess. Known for its electric starter convenience and manageable 107.5 kg weight, it excels in tight terrain with excellent ground clearance and responsive single-disc braking. The 9-liter fuel capacity provides adequate range for extended trail adventures.

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General information

CategoryEnduro / offroad
Year2020
ModelBeta RR 4T 400

Engine and Transmission Specifications

ClutchWet multi-disc
Transmission typeChain   (final drive)
Gearbox6-speed
Cooling systemLiquid
Lubrication system2 oil pumps
IgnitionDC-CDI without trembler with variable ignition timing, Kokusan type.
Fuel controlDouble Overhead Cams/Twin Cam (DOHC)
Fuel systemCarburettor. Synerject dual electronic injection
Bore x Stroke86.0 x 63.4 mm (3.4 x 2.5 inches)
Compression12.5:1
Engine typeSingle cylinder, four-stroke
Capacity:385.4 ccm (23.52 cubic inches)
 
 

Brakes, suspension, Frame and wheels

Rear brakesSingle disc
Diameter260 mm (10.2 inches)
Front brakesSingle disc
Rear tire140/80-18
Front tire90/90-21
Rear wheel travel290 mm (11.4 inches)
Rear SuspensionMonoshock with progressive compound lever
Front wheel travel295 mm (11.6 inches)
Front SuspensionHydraulic USD fork with ø48mm shaft
Frame typeMolybdenum steel with double cradle split above the exhaust port

Physical measures and capacities

Reserve fuel capacity3.80 litres (1.00 US gallons)
Fuel capacity9.00 litres (2.38 US gallons)
Wheelbase1490 mm (58.7 inches)
Ground clearance320 mm (12.6 inches)
Overall width815 mm (32.1 inches)
Overall length2180 mm (85.8 inches)
Overall height1270 mm (50.0 inches)
Seat height940 mm (37.0 inches) If adjustable, lowest setting.
Dry weight107.5 kg (237.0 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
StarterElectric
Color optionsRed/white/Black

Performance Profile & Rider Fit

Best For

Track25%
City20%
Cornering70%
Daily Riding15%
Touring15%
Passenger5%

Rider Profile

Best ForThis bike suits intermediate to experienced off-road riders who are comfortable with a tall, aggressive enduro machine.
PurposeBuilt as a purebred competition enduro machine, it excels at tackling technical trails, tight woods sections, and demanding off-road terrain.
Rider FitThe tall 940mm seat height, minimal weight, and firm long-travel suspension demand good rider fitness, leg length, and standing-riding stamina.
CharacterIt has the light, flickable, high-revving personality of a race-focused single-cylinder enduro bike that rewards active, aggressive riding.
Not Ideal ForIt is not a good choice for riders wanting a comfortable commuter, a passenger-friendly bike, or long-distance paved touring.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2020 Beta RR 4T 400 Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 940mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2020 Beta RR 4T 400, with a cramped knee angle of around 85 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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Rider Reviews

Total comments: 1
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MotorcycleDB Review

The 2020 Beta RR 4T 400 is poised to be a game-changer in the world of dirt biking. With its powerful 400cc engine, this motorcycle delivers exceptional performance and handling, making it a top choice for off-road enthusiasts. The lightweight design and responsive suspension system provide a smooth and nimble ride, while the sturdy frame ensures durability and stability on rough terrain. Whether you're a seasoned rider or a beginner looking for an exhilarating adventure, the Beta RR 4T 400 is a versatile and reliable option for tackling any off-road challenge. In addition to its impressive performance, the 2020 Beta RR 4T 400 boasts a sleek and modern design that is sure to turn heads. The motorcycle's vibrant color options and streamlined bodywork make for a visually stunning and eye-catching ride. Its comfortable seating position and intuitive controls also contribute to an enjoyable riding experience. Overall, the 2020 Beta RR 4T 400 is a well-rounded and high-quality dirt bike that offers a winning combination of power, agility, and style for riders of all skill levels.
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