Beta RR 450 Enduro




Make Model

Beta RR 450 Enduro


2011 - 13


Four stroke, single cylinder, DOHC, 4 valves


448 cc / 27.3 cu in
Bore x Stroke 95 x 63.4 mm
Compression Ratio 11.95:1
Cooling System Liquid cooled

Lubrication System

Forced, 2 oil pumps

Engine Oil


Oil Capacity

0.8 L / 0.2 US gal


Keihin FCR-MX 39


DC-CDI without trembler with variable ignition timing, Kokusan type

Spark Plug



Electric and kick


Wet, multi-plate


6 Speed

Final Drive

Gear Ratios 1st 12:31 / 2nd 15:28 / 3rd 19:28 / 4th 20:24 / 5th 27:27 / 6th 28:24
Primary Drive 33/76
Frame Molybdenum steel with double cradle split above the exhaust port

Front Suspension

Hydraulic USD fork, 45mm

Front Wheel Travel

290 mm / 11.2 in

Rear Suspension

Monoshock with progressive compound lever

Rear Wheel Travel

290 mm / 11.2 in

Front Brakes

Single 260 mm floating disc, 2 piston floating caliper

Rear Brakes

Single 240 mm disc, 1 piston floating caliper

Front Wheel

1.60 x 21

Front Tyre

90/90 - 21

Rear Wheel

2.15 x 18

Rear Tyre

140/80 - 18


Length: 2180 mm / 50.4 in

Width:     807 mm / 31.8 in

Height:  1270 mm / 50.0 in

Wheelbase 1490 mm / 58.7 in
Seat Height 940 mm / 37 in
Ground Clearance 320 mm / 12.6 in
Footrest Height 413 mm / 16.3 in

Dry Weight

117 kg / 258 lbs

Fuel Capacity

8.5 L / 2.2 US gal

Fuel Reserve

1 L / 0.3 US gal


Constant evolution with an even wider range of use.

The Beta RR Enduro models have become well known for their immediate and genuine approach, for reliability, long maintenance intervals and, last but not least their 100% Italian style. Today, the third generation RR4T models are equipped with our own engine made in Rignano Sull'Arno and arrive on the market as the result of a continuous development for many different riding abilities. Many are the refinements and innovations, both on the frame and the engine, all designed to increase reliability and riding feeling. A wide range of displacements are now available, strengthened by the new 350cc engine, a first for Beta in the enduro market. For 2012 Beta has developed a complete range of enduro bikes to appeal to both the weekend hobbyist as well as the seasoned Pro.

Balance countershaft

New roller bearing for increased reliability (3 times more durable)

Cylinder head
Reinforced camshaft bridge: increased stiffness reduces the deformation of the camshaft under stress, it performs better with a valve train that is much more precise.
Reinforced valve retainers
New cam chain tensioner with resized retainer mechanism to reduce noise when engine is cold.
New cam chain guide with metal insert: stronger at high temperature and under stress, it allows a more precise function of valve train.
Additional oil spray on the cam chain to increase lubrication, improve chain guide workings and reduce losses due to friction.

Reinforced primary gear: increased rigidity reduces axial movements of the clutch bell providing precision to the engagement and increased working stability under stress usage.
New clutch springs: high quality material to resist to high temperatures, minimum tollerances to drastically increase engagement force.

Gear box
New guide design in gear desmodromic for a smooth gear action.

New oil drain cap with hexagon head to make maintenance operation easier.

New silencer
New design, shaped, integrated with bike style and new performances: the new silencer provides performance improvement along all the ranges, better feeling and engine ride-ability.
Full respect of noise emission FIM/2Metremax rule.

New Sachs USD 48 mm fork. It's the big news for the 2012 models! Thanks to the TFX - TwinFlux Technology, developed exclusively by Sachs for Beta, the new fork allows an immediate lightness and dynamism feeling.
Hydraulic system with compression / extension pistons with differentiated diameter (greater in compression, smaller in extension). This choice improves the balance of the oil flow inside the stems and, specifically, it makes the front end capable of cashing out the bumps without unpredictable reactions.
48 kg springs: they offer more support which means higher compression braking and, consequently, greater stability and easy turning ability.
Significant improvement of smoothness operation
Adoption of SKF seals and dust seals. Thanks to the special self-lubricating compound they reduce the stick-slip effect and provide better working precision.
Improved progressive action to provide a more positive feedback to the rider
New dedicated triple clamp. The increased stiffness allows for increased precision and direction of the front wheel.
New tube cradle frame with 28 mm tubes (instead of 25 mm). They increase overall stiffness and strength with significant advantages in terms of riding precision in extreme conditions
New brake discs with optimized profile for better performance in heavy usage conditions
New Brembo clutch pump, a step forward in delivering a good feeling from the engine to the rider. In fact, the increased linearity of operation, increases the feeling of smoothness, improves the feeling with gearbox and, therefore, the research for grip in extreme conditions
New design of front headlight and fender support