Enduro Bikes
2026Beta RR X-Pro 4T 390
38 fields on record
The Beta RR X-Pro 4T 390 is a lightweight enduro machine designed for serious off-road riders seeking technical trail performance. Its 385cc four-stroke engine delivers responsive power with advanced fuel injection and liquid cooling, while titanium valves and dual overhead cams ensure durability. Best suited for competitive enduro enthusiasts and adventure riders tackling challenging terrain.
- Capacity
- 385.6 ccm
- Engine
- Single, four-stroke
- Gearbox
- 6-speed
- Dry weight
- 107.5 kg
- Seat height
- 940 mm
- Power
- Not on record
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How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built for competitive and recreational enduro use, this bike is designed to attack tight trails, roots, rocks, and technical terrain rather than pavement.
- Built for
- The high-compression, DOHC titanium-valve single with traction control gives a peaky, responsive, race-bred character that thrives at higher revs on loose surfaces.
- Not ideal for
- This is not a good fit for new riders, commuters, or anyone wanting a comfortable, low-effort street or touring bike.
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 usRange and running costs
Worked out in your browser - nothing is sent to usBased 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.
Engine
- Capacity
- 385.6 ccm
- Engine type
- Single, four-stroke
- Fuel consumption
- 3.30 litres/100 km (30.3 km/l)
- Bore x stroke
- 88.0 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
- Spark plugs
- NGK LKAR 8A-9
- Power
- Not on record - add it
- Torque
- Not on record - add it
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet multi-disc
Dimensions & weight
- Wheelbase
- 1490 mm
- Overall length
- 2180 mm
- Overall width
- 830 mm
- Overall height
- 1270 mm
- Seat height
- 940 mm
- Dry weight
- 107.5 kg
- Fuel capacity
- 9.00 litres
- Ground clearance
- 315 mm
- Oil capacity
- 1.60 litres
- Reserve fuel capacity
- 2.30 litres
Chassis & suspension
- Frame
- Molybdenum steel with double cradle split above the exhaust port
- Front suspension
- 48 mm ZF Sachs SHC open-cartridge USD fork
- Rear suspension
- KYB monoshock with progressive compound lever
- Front wheel travel
- 295 mm
- Rear wheel travel
- 290 mm
Brakes & wheels
- Front brakes
- Single disc. 2-piston floating calipers
- Rear brakes
- Single disc. 1-piston floating caliper
- Front tyre
- 90/90-21
- Rear tyre
- 140/80-18
Other
- Color options
- Red/blue/white
- Comments
- Traction control.
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 | 2025 | 2026 | 2027 |
|---|---|---|---|
| Capacity | 386 cc | 386 cc | 386 cc |
| Dry weight | 108 kg | 108 kg | 108 kg |
| Seat height | 940 mm | 940 mm | 930 mm |
| Fuel capacity | 9 L | 9 L | 9 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the Beta RR X-Pro 4T 390?
The 2026 Beta RR X-Pro 4T 390 has a Capacity of 385.6 ccm (23.53 cubic inches).
How many gears does the Beta RR X-Pro 4T 390 have?
The 2026 Beta RR X-Pro 4T 390 has a Gearbox of 6-speed.
How much does the Beta RR X-Pro 4T 390 weigh?
The 2026 Beta RR X-Pro 4T 390 has a Dry weight of 107.5 kg (237.0 pounds).
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