Beta RR 350 Enduro




Make Model

Beta RR 350 Enduro




Four stroke, single cylinder with countershaft


349 cc / 21.3 cu in

Bore x Stroke

88 x 57.4 mm

Compression Ratio



Forced, 2 oil pumps

Cooling System

Liquid cooled, forced by pump


Keihin FCR-MX 39mm


DC-CDI with variable ignition timing, Kokusan

Spark Plug



Electric and kick


Wet multi-disc


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



Molybdenum steel with double cradle split above exhaust port. Air filter access from the side

Front Suspension

48 mm Ø Sachs USD fork, adjustable compression and rebound, TFX technology, 11.4 in wheel travel.

Front Wheel Travel

290 mm / 11.4 in

Rear Suspension

Sachs shock w/adjustable rebound and hi/low speed compression

Rear Wheel Travel

290 mm / 11.4 in

Front Brakes

Single 260 mm Ø floating disc, 2 piston floating caliper

Rear Brakes

Single 240 mm Ø disc,  1 piston floating caliper

Front Wheel

1.60 x 21

Rear Wheel

2.15 x 18

Front Tyre

90/90 -21

Rear Tyre

140/80 -18


Length: 2180 mm / 85.8 in

Width:     807 mm / 31.8 in

Height:  1270 mm / 50.0 in


1490 mm / 58.7 in

Seat Height

940 mm / 37.0

Ground Clearance

320 mm / 12.6 in

Footrest Height

413 mm / 16.3 in

Dry Weight

114 kg  /  251 lb

Fuel Capacity 

8.4 L / 2.2 US gal

Fuel Reserve

1.5 L / 0.4 US gal

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.

American Beta is proud to announce the 2012 Beta Off Road RR model line up with a complete range being offered for 2012 including 350, 400, 450, and 498 versions. (498 RR formerly known as 520 RR)

Beginning with the 350RR, Beta feels this is the ultimate single-track motorcycle as its ability to change direction is unmatched while still offering enough torque and power for both play riders and racers. The 350 provides a "2-stroke feel" yet still offers the traction and smooth power delivery of a 4 stroke. Returning for 2012 are the proven 400, 450, and 498 RR models that have helped put Beta on the off road map. These models continue to impress the magazines as well as the riders that own them.

Beta 350RR Features and Benefits

Updates for 2012 Include:


* Redesigned cylinder head including reinforced camshaft bridge, valve retainers, and updated cam chain tensioner to help reduce engine noise.
* New clutch primary gear and springs for better engagement and clutch action.
* Updated counterbalance bearings for increased reliability.
* Stronger cam chain guides
* Increased oil volume to the engine cam chain for reduced friction.
* New oil drain plug for easier oil changes.


* All new Sachs 48mm fork with TFX technology, developed by Sachs exclusively for Beta. This new design allows the fork to move through its stroke with very little friction.
* New SKF fork seals and wipers with self-lubricating compounds to also reduce stiction.
* New triple clamp to match perfectly with the new front fork.
* Redesigned frame with extra gussets as well as an increased tube diameter on the lower tubes. This new frame has less flex and has improved stability.
* New front and rear brake rotors.
* New Brembo clutch master cylinder for a better clutch feel and engagement.
* Redesigned muffler (Spark Arrestor) offers better flow while retaining a quiet exhaust note.
* Redesigned front headlight and front fender support
* Striking new red color for 2012