43,655 bikes · 493 makes Add a bikeLog inRegister
Enduro Bikes

2024Beta RR 4T 390

Rate this bike
Click to vote

36 fields on record

The 2024 Beta RR 4T 390 is a lightweight enduro motorcycle designed for serious off-road riders seeking reliability and performance. Its 385cc liquid-cooled four-stroke engine with titanium valves and electronic fuel injection delivers responsive power across varied terrain. Built for technical trail riding and enduro competition, it excels in demanding conditions where precision handling and engine durability matter most.

Capacity
385.6 ccm
Engine
Single, four-stroke
Gearbox
6-speed
Dry weight
107.5 kg
Seat height
940 mm
Power
Not on record
Know it? Add it →
⇄ Compare with another bike + Add to garage All model years
Other years 2021 2022 2023 2024

How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 45Agility 96Comfort 35Off-road 97Touring 20Road manners 30
Off-road & trail97%
Cornering55%
City riding20%
Daily riding20%
Touring15%
Two-up5%
Track25%
Best for
It's built specifically for technical enduro and trail riding rather than road use or commuting.
Built for
It has the character of a lightweight, high-revving dirt weapon that rewards aggressive, active riding over technical terrain.
Not ideal for
This is not the bike for riders wanting a comfortable, low, passenger-friendly machine for daily road commuting or long highway touring.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

Worked out in your browser - nothing is sent to us
At 940mm, a rider of 68.9" with a 31" (estimated) inseam will not reach the ground comfortably on the 2024 Beta RR 4T 390, with a cramped knee angle of around 85 degrees and an upright riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at over 900 mm — Sky High →

Find bikes that fit your height →

Range and running costs

Worked out in your browser - nothing is sent to us

Based on the maker's published fuel consumption and tank size. Real-world figures depend on how and where you ride, and the last litres of a tank are reserve. Prices shown greyed are examples - type your own.

Full specifications

Engine
Capacity
385.6 ccm
CO2 Emissions
90 CO2 g/km
Engine type
Single, four-stroke
Fuel consumption
3.90 litres/100 km (25.6 km/l)
Bore x stroke
89.0 x 63.4 mm
Compression
12.5:1
Cooling system
Liquid
Fuel system
Injection
Starting
Electric
Ignition
Kokusan
Valves per cylinder
4
Lubrication system
2 oil pumps
Power
Not on record - add it
Torque
Not on record - add it
Transmission
Gearbox
6-speed
Transmission type
Manual
Clutch
Wet multi-disc
Dimensions & weight
Wheelbase
1490 mm
Overall length
2180 mm
Overall width
815 mm
Overall height
1270 mm
Seat height
940 mm
Dry weight
107.5 kg
Fuel capacity
9.00 litres
Ground clearance
320 mm
Reserve fuel capacity
2.30 litres
Chassis & suspension
Frame
Molybdenum steel with double cradle split above the exhaust port
Front suspension
Hydraulic USD fork with 48 mm shaft
Rear suspension
Monoshock with progressive compound lever
Front wheel travel
295 mm
Rear wheel travel
290 mm
Brakes & wheels
Front brakes
Single disc. 2-piston calipers
Front brakes diameter
260 mm
Rear brakes
Single disc. Single-piston caliper
Front tyre
90/90-21
Rear tyre
140/80-18
Other
Color options
Red/white/Black

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

What changed, year to year

Differences highlighted
Specification 2021202220232024
Capacity 385 cc 385 cc 386 cc 386 cc
Dry weight 108 kg 108 kg 108 kg 108 kg
Seat height 940 mm 940 mm 940 mm 940 mm
Fuel capacity 9 L 9 L 9 L 9 L

Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.

Rider Reviews

—
☆☆☆☆☆
Be the first to rate

Own one? Add it to My Garage and write an owner review with an Owner badge.

Common questions

What is the engine size of the Beta RR 4T 390?

The 2024 Beta RR 4T 390 has a Capacity of 385.6 ccm (23.53 cubic inches).

How many gears does the Beta RR 4T 390 have?

The 2024 Beta RR 4T 390 has a Gearbox of 6-speed.

How much does the Beta RR 4T 390 weigh?

The 2024 Beta RR 4T 390 has a Dry weight of 107.5 kg (237.0 pounds).

Shop this bike

Affiliate links

We may earn a commission from qualifying eBay or Amazon purchases made through these links. As an Amazon Associate I earn from qualifying purchases.

Similar bikes

Same category, weighted similarity

More Beta Motorcycles