14 August. Friday 2026
Beta RR 4T 390 - 2024 Specifications and Reviews
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.
General information | |
| Type | Enduro / offroad |
| Year of manufacture | 2024 |
| Model name | Beta RR 4T 390 |
Engine and Transmission Specifications | |
| Greenhouse gases | 90.2 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Fuel consumption | 3.89 litres/100 km (25.7 km/l or 60.47 mpg) |
| Clutch | Wet multi-disc |
| Transmission type | Chain (final drive) |
| Gearbox | 6-speed |
| Cooling system | Liquid |
| Lubrication system | 2 oil pumps |
| Ignition | Kokusan |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) |
| Fuel system | Injection. Elldor dual electronic injection |
| Valves per cylinder | 4 |
| Bore x stroke | 89.0 x 63.4 mm (3.5 x 2.5 inches) |
| Compression | 12.5:1 |
| Engine details | Titanium valves |
| Type of engine | Single cylinder, four-stroke |
| Capacity: | 385.6 ccm (23.53 cubic inches) |
| | |
Brakes, suspension, Frame and wheels | |
| Wheels | Wire spoked |
| Rear brakes | Single disc. Single-piston caliper |
| Diameter | 260 mm (10.2 inches) |
| Front brakes | Single disc. 2-piston calipers |
| Rear tire | 140/80-18 |
| Front tire | 90/90-21 |
| Rear suspension | Monoshock with progressive compound lever |
| Front suspension | Hydraulic USD fork with 48 mm shaft |
| Frame type | Molybdenum steel with double cradle split above the exhaust port |
Physical measures and capacities | |
| Reserve fuel capacity | 2.30 litres (0.61 US gallons) |
| Fuel capacity | 9.00 litres (2.38 US gallons) |
| Wheelbase | 1490 mm (58.7 inches) |
| Ground clearance | 320 mm (12.6 inches) |
| Overall width | 815 mm (32.1 inches) |
| Overall length | 2180 mm (85.8 inches) |
| Overall height | 1270 mm (50.0 inches) |
| Seat height | 940 mm (37.0 inches) If adjustable, lowest setting. |
| Dry weight | 107.5 kg (237.0 pounds) |
| | |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Update specs | |
| Starter | Electric |
| Color options | Red/white/Black |
Performance Profile & Rider Fit
Best For
Track25%
City20%
Cornering55%
Daily Riding20%
Touring15%
Passenger5%
Rider Profile
| Best For | This bike suits confident intermediate to expert off-road riders who are comfortable with a tall seat height and aggressive enduro geometry. |
| Purpose | It's built specifically for technical enduro and trail riding rather than road use or commuting. |
| Rider Fit | The tall 940mm seat height and lightweight but tall-standing chassis favor taller riders with good fitness and standing-riding endurance. |
| Character | 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. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
Shop This Bike
Rider Reviews
Add a Comment
Related Motorcycle Specifications
Please Submit Recommendations
More Beta Motorcycles
- Motorcycles in database: 45863
- Technical specifications: 1490298
- Images of motorcycles: 72681
- Videos: 339
- Manufacturers: 501
Please Login or Register if you would like to leave a comment.