Beta decided to upgrade its EE 4T 350 for the year 2013. The new bike comes with a fresh design language as well as a comprehensive list of technical improvements.

One of the main concerns of the company’s technicians was make their 2013 model lighter than the previous one. Thanks to their efforts, the 2013 RR 4T 350 has a dry weight of only 113,0 kg which makes it one of the lightest motorcycles in its class.

In terms of power, the RR 4T 350 is propelled by a single cylinder, 4-stroke, liquid-cooled engine with a displacement of 349,1cc. The company’s technicians have also improved the 2013 engine to make it more reliable and capable than the previous unit.

The engine is linked to an 8 liters fuel tank and sends its power to the ground though a 6 speed transmission.

Hit the jump for more information on the Beta RR 4T 350.

  • 2013 Beta RR 4T 350
  • Year:
  • Make:
  • Engine:
    Single cylinder, 4-stroke, liquid-cooled
  • Transmission:
  • Energy:
  • Displacement:
    349 cc


New Enduro RR 2013 from the Tuscany firm are completely renovated
The long-awaited BETA Enduro 4T 2013 are finally arriving. They benefit from a long and deep development, not only in the design but also in experience gained from off road competitions around the World.

Available in four engine displacements 350cc - 400cc - 450cc and 498cc, RR Enduro 4T 2013 have been developed focusing on weight reduction, improved ergonomics and ease of handling under race conditions.

The engines have been improved by a series of local details aimed to improve the already excellent reputation for reliability and performance. The final result is a bike that is one of the lightest in its class, with an excellent riding position appreciated by both racers and hobby riders who will benefit from special Beta handling and stability, in addition to the exceptional performance.


• Silencer modified in the internal structure, to obtain a power curve even more favorable and to reduce the weight. And in full compliance with Phonometric FIM/2Metremax rules.

• On the 400cc engine primary drive has been shortened to further improve engine power and torque delivery.

• New decompression system for easy start of the engine in any condition.

• Air filter newly designed to improve the power delivery of the engine especially at lower RPM.

• New filter cage with improved fit to offer a more secure mounting of the air filter.

• Air filter mounting bracket changed to make the locking of the filter even more secure.


• New frame reinforced at the points of greatest stress and lightened where possible, designed to be stronger and at the same time provide a consistent weight reduction.

• Complete new wheels thanks to:

  • Brake discs with a different profile, more rigid with 6 mounting points to the hub, made of high quality steel, they provide extremely strong braking action as well as excellent feel.
  • New hubs, lighter and more rigid at the same time.
  • Rims with a new profile, more resistant to stress and very light at the same time.
  • All new spokes
  • Special inner tubes for a further reduction of weight.The above leads to a weight reduction of 1.5 kg (3.2 lbs) total between the two wheels which provides a tremendous benefit in terms of ease in changing direction, greater acceleration and more effective braking.

• New swingarm with a new shape and revised thicknesses to provide a greater rigidity, better weight distribution and reduction of the masses of 250 grams (.5 lb)

• 48mm Sachs front fork internal parts completely renovated and .48 kg spring. This allows a better control of the hydraulic system which results in further performance on both low and high speed conditions. In addition, the rebound setting is now managed by a knob for easy adjustment without tool.

• Rear shock absorber with improved settings, 5.2 Kg spring and a larger reservoir to provide a better control of the shock’s action, improved cooling and therefore better performance. In addition, the body of the shock absorber is now made of aluminum allowing a saving of weight of 300 grams (.6 lbs).

• Completely new fuel tank, redesigned to offer a better centering of gravity and allow quicker changes of direction. The area around the cap is now lower for better ergonomics and it has a capacity of 8 liters. Moreover its design improves the air flow from the radiators to help lower engine temperatures.

• New fuel tank cap with an external thread for easier opening and closing as well as to prevent dirt from falling into the tank.

• Seat with a new side profile and a different design. It allows greater ease of movement thanks to a narrow upper part, in addition to being lighter.

• Modified seat mounting system, improved design in the front and new fixing pins in the rear. Still a quick-release design but now a more solid fit.

• New side radiator shrouds with a design that allows for better flow and increased air circulation in the area around engine head. Their shape provides a very slim feel for an improved riding position while also allows better airflow to the engine.

• Radiator grids with an optimized shape for directing a greater air flow towards the radiators, while providing the engine improved cooling under extreme conditions of use.

• New instrumentation, lighter, with a bigger display, better lighting and easily readable. In addition lights and arrows indicators are integrated, for improved ergonomics of the handlebar area.

• Stiffened rear subframe in the back area for better supporting the plate support, lightened and modified to facilitate the replacement of the rear shock.

• Plate support stiffened by ribs, to enable the use of bulky and heavy license plates too.

• Air filter box modified to match the new style of the bike.

• DID o’ring chain for extreme smoothness and best quality.

• Completely renovated Graphics which emphasize the slim design of the bike and at the same time enhance the racing feeling.


The 2013 Beta RR 4T 350 didn’t received many changes compared to the previous generation, but those small tweaks (especially the ones that aimed at cutting some weight) are still playing a major role in improving the bike’s capabilities.

On the track, the RR 4T 350 is pretty easy to handle and forgives the errors rather well. And while it does not feel as strong as other bikes in the segment, is still has more than enough grunt to keep you out of trouble during difficult sections.

In the end, we don’t have many complaints about the Beta unless we want to get very picky – is tough, light agile and reliable. And the 8790 € price tag for the standard version is pretty attractive too.


Engine type Single cylinder, 4-stroke, liquid-cooled
Bore 88 mm
Stroke 57,4 mm
Displacement 349,1 cc
Compression ratio 12,9:1
Valve train DOHC finger follower / 4 titanium valve
Starter Kick- and electric starter
Ignition Kokusan AC-CDI
Spark plug NGK LKAR 8A-9
Lubrication 2 oil pumps
Fuel system carburettor
Carburettor Keihin FCR-MX 39
Clutch wet multi-disc clutch
Primary drive straight toothing Z. 28/76
Transmission 6 gears
Final transmission chain
Engine oil SAE 10W/50 0,8 l. + SAE 10W/40 0,8 l.
Frame Molybdenum steel with double cradle split above the exhaust port
Wheelbase 1490 mm
Max length 2180 mm
Max width 807 mm
Max height 1270 mm
Seat height 940 mm
Ground clearance 320 mm
Footrest height 413 mm
Dry weight 113,0 kg (front 55 kg; rear 58 kg)
Fuel tank capacity 8,0 l.
Reserve 1,3l.
Cooling system capacity 1,4 l.
Front suspension Hydraulic USD fork with ø 48 mm shaft
Rear suspension Monoshock with progressive compound lever
Shock absorber stroke 135 mm
Front wheel travel 290 mm
Rear wheel travel 290 mm
Front brake Wave disc ø260 mm and double-piston floating caliper
Rear brake Wave disc ø240 mm and single-piston floating caliper
Front rim 21 x 1,6 - 36 holes
Rear rim 18 x 2,15 - 36 holes
Front tyre 90/90 - 21
Rear tyre 140/80 -18
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