2019 BETA OFF-ROAD & DUAL-SPORT BIKES

KEY RR MODEL FEATURES:

125 two-stroke: The smallest bike in the Beta range, the lightest and easiest to handle of them all. In pure racing style, suitable for both young riders coming up from the lower categories and more expert riders looking for a fun bike.

200 two-stroke: The chassis and engine design derive from its smaller sister the 125, while providing broader torque and ensuring extremely low weight and great handling but with decidedly higher torque and power. Oil injection and electric start make this a complete bike that is just perfect for Off Road enthusiasts of all ages and ability.

250 two-stroke: Ideal for those looking for a gentler 2-stroke bike with slightly less power and torque than the top-of-the-range models to ensure excellent handling. Offers a lighter feel overall from the 300 RR models.

300 two-stroke: Made for those who like big-displacement engines with outstanding torque at any rpm. The perfect bike for those who enjoy riding long distances on smooth or fast terrain.

350 four-stroke: This is the easiest-to-handle bike in the 4-stroke model range; it favors high-rev riding while providing a very linear power output.

390 four-stroke: An engine with no competition, the 390 feels like a 350 yet offers more torque with less shifting. A true all-around bike that is creating a class of its own.

430 four-stroke:High performance engine that appeals to all riders looking for a 450 class bike. Quick-revving with plenty of torque provides both play riders and top level racers a package that will meet their demands.

500 four-stroke: This bike expresses itself best in wide open spaces. Its characteristics are similar to the 430 model but with even higher torque and power and requires less shifting. Great for long excursions.

• Double piston rings (54 mm): component designed to ensure high rigidity and reliability; the choice of double rings provides a better seal at the low and medium revs that are better suited for Off Road trail riding.
• Beta progressive valve: This exclusive system allows a broad power delivery due to the special timing of the opening of the main flap and that of the side boosters. The delayed opening of the boosters enables excellent performance and linear power throughout the engine’s rpm range.
• Crankshaft with polyamide inserts: favors lightness and ensures optimum filling of the crankcase, boosting performance and reliability.
• Cylinder: has an exhaust flange system as on the bigger engines, enabling better control of frontal piston-flap-cylinder play. By keeping this value to a minimum it is possible to achieve a significant low-rev performance boost by reducing exhaust gas leakage.
• Aluminum demountable cylinder head dome: rigid and lightweight solution made possible by shifting the engine mount on to the cylinder. The geometry of the combustion chamber is designed to ensure a high-efficiency thermodynamic cycle and obtain the best compromise between responsiveness at low-to-medium revs and during spurts. It also facilitates fine tuning and replacement of the combustion chamber.
• Die-cast crankcase in aluminum alloy: the casing geometries were designed according to an innovative layout in terms of the relative position of components and with a view to maximize weight reduction without compromising structural strength. Considerable attention was focused on the main bearing area to ensure correct wall rigidity in order to withstand the stresses transmitted by the crankshaft.
• Die-cast crankcase covers in magnesium alloy: ensure very low weight and optimal surface finish. It also proved possible to adopt this solution for the inner clutch cover thanks to isolation of the water pump from this element.
• Vforce4 reed valve packet: the stoppers ensure high reliability without compromising performance.
• 6-speed dog-box transmission: specially developed for small Beta engines with gears made from forged blanks to provide mechanical strength and reliability while still keeping size and weight extremely low.
• Clutch: multi-disc in oil bath with reverse opening, actuator integrated into the outer cover. This is a system designed for maximum engine lightness and compactness. Thanks to low-slung positioning, it ensures reduction of power unit size and a significant centralization of weight, crucial for good chassis dynamics.
• Exhaust system: to optimize the 2-stroke engine’s torque and power curves, the Beta R&D Department has developed a special system dedicated to this engine size.
• Electric start: perfect start-up convenience whatever the situation. (Back-Up kick starter option available as an accessory)
• Automatic oil injection: eliminates the need for a fuel-oil premix.

• Updated Steering Head Design: various solutions were investigated and developed before reaching a final one that has allowed a reduction in engine-generated vibration while maintaining good engine-frame system stiffness.
• Sachs Suspension: derived from the rest of the RR range but with its own settings. At the front there is an open-cartridge fork of 48 mm diameter.
• Filter box air boot: designed for this engine type, it improves flow across the entire rev range, even at low revs.
• Skid Plate: made from tough yet light polyamide, it features excellent shielding to stop mud getting between the engine and the guard itself.
• Fuel tank: compared to larger models, a slightly smaller tank has been adopted to improve on-board ergonomics while maintaining good fuel autonomy.
• Cooling system: specifically designed for this bike, features new hoses and radiators with specially shaped reservoirs to fit the small size of the motorcycle.
• Nissin braking system: extremely powerful and configurable, the same as on the rest of the Enduro range.

• New engine control unit (ECU): guarantees a more powerful spark at high revs, improving combustion and engine performance.
• Clutch actuator with larger diameter: gives the clutch lever a softer, more responsive feel.
• New BPV exhaust valve opening adjustment (on 300 cc only): allows extremely linear power delivery, creating a high-performance engine that is easy to use under extreme conditions.
• BPV power valve springs kit (on 300 cc only): supplied with the bike to extend the bike’s power delivery according to the rider’s needs. Thanks to springs with a spring rate lower than the standard ones, performance is better at mid-high revs, giving fuller, more decisive power delivery.
• Stiffer clutch cover (on 125 cc only): improves operation and produces a more precise bite-release action.
• New expansion chamber (on 250/300cc only): ensures increased performance throughout the rev range.

• New throttle control: designed by Domino exclusively for Beta for improved engine response, giving optimized traction even on the most difficult terrain.
• New mapping for all engine sizes combined with the excellent response of the new throttle control.
• Clutch actuator with larger diameter: gives the clutch lever a softer, more responsive feel.

• New ZF Sachs (48 mm) fork with new adjustment system: provides positioning of the compression, rebound and spring preload adjusters on the upper fork cap; they can be reached while sitting on the bike and do not require tools. The fork also benefits from a new bushing system which ensures greater stability and a slider with special anodizing that reduces friction and increases durability.
• New fork shoes (yoke): stiffer and lighter.
• New fork guards: designed together with the shoe to combine practicality and design.
• Fully redesigned ZF Sachs shock: with more compact 46 mm piston, about 300g lighter. The new piston has been designed to ensure more stable operation as the oil temperature varies and increased sensitivity to enhance comfort and traction. The small upper base and reservoir have also been redesigned to be farther away from the exhaust pipe while minimizing weight. New spring is also lighter.
• New graphics and colors. 

2019 RR-S Models