Back to Bike FinderYears: 2020 · 2010 · 2008
Beta RR 4T 400
2010Off-road

Beta RR 4T 400

Key specifications

Engine
398 cc
Weight
118 kg
Fuel type
petrol
Fuel capacity
2.3 L
Transmission
6-speed
Seat height
37 mm
Front brakes
Single disc
Rear brakes
Single disc

Overview

Introducing the 2010 Beta RR 4T 400, a motorcycle that embodies the spirit of adventure and the thrill of off-road riding. This enduro bike is designed for enthusiasts who crave the perfect blend of performance and agility on rugged terrains. With its roots firmly planted in Beta's long-standing tradition of excellence in off-road biking, the RR 4T 400 stands out in a crowded market, appealing to both seasoned riders and newcomers alike. Its striking red and white color scheme not only commands attention but also reflects the bike's racing heritage, promising an exhilarating ride every time you hit the trail. At the heart of the Beta RR 4T 400 is a potent 398cc single-cylinder, four-stroke engine, which delivers an impressive balance of power and torque. With a compression ratio of 11.0:1 and a bore and stroke of 89.0 x 64.0 mm, this engine provides robust performance across a wide range of RPMs. The Keihin FCR-MX 39 carburettor ensures precise fuel delivery, enhancing throttle response and overall rideability. Paired with a six-speed gearbox, this bike offers smooth transitions and the ability to tackle steep climbs and rugged paths with ease. Riders will appreciate the liquid cooling system that keeps the engine at optimal temperatures, allowing for prolonged adventures without the worry of overheating. The chassis of the RR 4T 400 is engineered for performance and durability, featuring a molybdenum steel frame with a double cradle design that provides excellent rigidity and stability. The 45mm hydraulic USD front forks and rear monoshock suspension system work in harmony to absorb bumps and ruts, ensuring a comfortable ride over challenging terrain. With a lightweight build of just 117.5 kg (259 pounds) and a generous ground clearance of 320 mm (12.6 inches), this motorcycle offers maneuverability and the confidence to tackle obstacles head-on. Additional features, such as an electric starter and a wet multi-disc clutch, enhance the riding experience, making it user-friendly and accessible for riders of all skill levels. **

Pros

  • Powerful Engine Performance: The 398cc engine delivers robust power and torque for an exhilarating ride on varied terrains.
  • Advanced Suspension System: The combination of hydraulic USD forks and a monoshock rear provides superior handling and comfort.
  • Lightweight and Agile: Weighing in at only 117.5 kg, the RR 4T 400 is nimble and easy to handle, making it perfect for off-road adventures.

Cons

  • Limited Fuel Capacity: With an 8.5-liter tank, longer rides may require more frequent refueling stops.
  • Higher Seat Height: At 940 mm, the seat height may be challenging for shorter riders to manage comfortably.
  • Carburettor Dependency: The use of a carburettor, while effective, may not provide the same level of performance consistency as modern fuel injection systems, particularly in varying weather conditions.

Technical details

Source specification data

Make
Beta
Model
RR 4T 400
Category
Enduro-offroad
Starter
Electric
Color Options
Red/white
Clutch
Wet multi-disc
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
Transmission Type Final Drive
Chain
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 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
Front Brakes
Single disc
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)

Available colors

Red/white