Beta RR 4T 400
Key specifications
Overview
Introducing the 2008 Beta RR 4T 400, a standout model in the competitive enduro-offroad motorcycle market. This machine embodies the spirit of off-road adventure with its robust build and performance-driven engineering. Designed for riders who crave the thrill of tackling rugged terrains, the RR 4T 400 blends efficiency and power in a lightweight frame, making it a go-to choice for serious enthusiasts and competitive riders alike. Whether you're navigating through tight trails or cruising over rocky landscapes, this motorcycle is built to deliver a thrilling experience. At the heart of the Beta RR 4T 400 is a powerful 398cc single-cylinder, four-stroke engine that delivers impressive torque and acceleration. With a well-balanced compression ratio of 11.0:1 and a state-of-the-art Keihin FCR-MX 39 carburettor, the engine provides a responsive throttle and smooth power delivery across the rev range. The 6-speed gearbox allows for precise gear shifts, ensuring you can tackle any off-road challenge with confidence. The liquid cooling system keeps the engine temperatures in check, enabling extended rides without compromising performance, while the wet multi-disc clutch enhances the smoothness of each gear change, allowing for seamless transitions even on the most demanding trails. The 2008 Beta RR 4T 400 is equipped with advanced features that enhance both comfort and control. The chassis is constructed from high-strength molybdenum steel, providing durability while maintaining a lightweight profile. The front suspension boasts a hydraulic USD fork with a 45mm shaft, offering exceptional handling and stability on uneven surfaces. The rear monoshock system with progressive compound lever ensures optimal traction and comfort for the rider, while the powerful braking setup—featuring a 255mm front disc and a 240mm rear disc—offers reliable stopping power when navigating steep descents or tricky terrain. With a seat height of 940mm and a ground clearance of 320mm, riders will appreciate the confidence-inspiring ergonomics that cater to various riding styles. **
Pros
- Powerful Engine Performance: The 400cc engine offers excellent torque and acceleration, making it suitable for both trail riding and competitive events.
- Lightweight and Agile: Weighing in at just 117.5 kg (259 lbs), the RR 4T 400 is highly maneuverable, allowing riders to tackle tight corners and obstacles with ease.
- Advanced Suspension System: The hydraulic USD fork and rear monoshock provide superior handling and comfort, ensuring a smooth ride on rough terrain.
Cons
- Seat Height Might be Challenging: With a seat height of 940mm, shorter riders may find it difficult to reach the ground comfortably.
- Limited Fuel Capacity: The 8.5-litre fuel tank may require frequent refueling on long rides, which might not be ideal for extended off-road adventures.
- Maintenance Requirements: The high-performance components and carburettor system may require more frequent maintenance compared to fuel-injected models.
Technical details
Source specification data
- Make
- Beta
- Model
- RR 4T 400
- Category
- Enduro-offroad
- Modifications Compared To Previous Model
- Technical Modifications
- 2008
- New
- design for headlamp support and front light assembly: more compact, with a more modern and aggressive shape.
- Anti
- -scratch polycarbonate lens.
- New
- digital instruments with smaller dimensions.
- New
- way of attaching the plastics at the rear end: a more practical system which improves accessibility and speeds up maintenance operations.
- Optimized
- and rationalized frame in the front area with new
- Domex
- 420 plates for a better rigidity and a loss of weight.
- New
- hydraulic adjustment for front forks: greater sense of stability and confidence to the rider.
- New
- side stand in forged aluminium: lighter, more stable and more robust.
- Drive
- chain tensioner guide made in one piece.
- New
- brake pads.
- The
- new material gives more incisive and controllable action.
- Seat
- profile improved for increased confidence and comfort, also enhancing control in the bends and giving greater effectiveness when turning on the power.
- Euro3
- homologation
- New
- colour scheme, more dynamic and aggressive, with fluorescent red and black plastics combined with more flowing graphics with greater impact.
- Clutch
- Wet multi-disc clutch
- Gearbox
- 6-speed
- Ignition
- C
- -
- I
- without trembler with variable ignition timing,
- Kokusan
- type.
- Fuel System
- Carburettor. Keihin FCR-MX 39
- Bore X Stroke
- 89.0 x 64.0 mm (3.5 x 2.5 inches)
- Compression
- 11.0:1
- Displacement
- 398.00 ccm (24.29 cubic inches)
- Cooling System
- Liquid
- Engine Details
- Single cylinder, four-stroke
- Lubrication System
- 2 oil pumps
- Dry Weight
- 117.5 kg (259.0 pounds)
- Seat Height
- 940 mm (37.0 inches) If adjustable, lowest setting.
- Fuel Capacity
- 8.50 litres (2.25 gallons)
- Overall Width
- 813 mm (32.0 inches)
- Overall Height
- 1,255 mm (49.4 inches)
- Overall Length
- 2,270 mm (89.4 inches)
- Ground Clearance
- 320 mm (12.6 inches)
- Reserve Fuel Capacity
- 1.00 litres (0.26 gallons)
- Rear Tyre
- 140/80-18
- Frame Type
- Molybdenum steel with double cradle split above the exhaust port
- Front Tyre
- 90/90-21
- Rear Brakes
- Single disc. single-piston floating caliper
- Front Brakes
- Single disc. double-piston floating caliper
- Rear Suspension
- Monoshock with progressive compound lever
- Front Suspension
- Hydraulic USD fork with ø45 mm shaft
- Rear Brakes Diameter
- 240 mm (9.4 inches)
- Front Brakes Diameter
- 255 mm (10.0 inches)