BETA SM SPORT 50 2-Stroke Motorcycle 2026

Attention: Vehicle available for collection in the Girona store only

Motorcycle BETA SM SPORT 50 2-Stroke 2026.

The Beta RR Motard 2-Stroke 50 Sport positions itself as the benchmark in the 50cc segment for those seeking a supermotard with competition DNA. This 2025 model introduces a new Frame with a double-cradle design, revised geometry, and a longer swingarm, which dramatically improves stability and traction through corners. Its Minarelli AM6 single-cylinder 2-stroke engine includes a selector with forged forks, ensuring much more precise and responsive operation of the 6-speed gearbox.

The exhaust system has been completely redesigned to comply with the Euro 5 standard, optimising the fuel vapour recovery and gas flow without sacrificing performance. Choosing this Sport model is essential if you are looking for a superior cycle component setup, as it incorporates a 40 mm fork and a double-piston front brake caliper on a 260 mm disc, preventing mechanical fatigue under demanding braking and improving active safety compared with the standard version.

Key information

• Engine: 49.7cc single-cylinder 2-stroke with liquid cooling.
• Carburettor: Dell’Orto PHBN 16 HS with automatic mixture system.
• Front Suspension: 40 mm diameter fork specific to the Sport version.
• Braking System: 260 mm front disc and 220 mm rear disc with high-performance caliper.
• Transmission: 6-speed gearbox with multi-disc clutch in an oil bath.
• Frame: Double-cradle steel in racing red with technical polymer subframe.
• Wheels: Lightweight alloy 17-inch wheels with Motard design.
• Capacity: 6.5-litre fuel tank.

Technical specifications

FRAME

• Frame: double-cradle steel Frame
• Wheelbase: 1417 mm
• Maximum length: 2035 mm
• Maximum width: 790 mm
• Maximum height: 1155 mm

ENGINE

• Type: Single-cylinder, 2-stroke, liquid-cooled
• Bore: 40.3 mm
• Stroke: 39 mm
• Displacement: 49.7 cc
• Compression ratio: 12:1
• Starting: Kick pedal
• Spark plug: NGK BR9 ES
• Lubrication: Mixture with mechanical pump, fuel at 1.5% (with synthetic oil)
• Fuel system: carburettor
• Carburettor: Dell’Orto PHBN 16 HS
• Clutch: multi-disc clutch in an oil bath
• Primary transmission: Z. 20/71
• Transmission: 6 speeds
• Secondary transmission: Z. 11/50
• Engine oil: SAE 20W/30 (820cc)