ENGINE RR RACE 2T 300 MY 2026

RR Race 2Str 250-300

In line with the recent innovations introduced on the XPRO My26 range – widely appreciated by amateurs and experienced users alike – the engine of the new RR Race 250 2Str has been completely redesigned in search for a greater torque and a broader power delivery at all speeds, to be enjoyed in all kinds of enduro tracks. What has changed specifically:

• Crankshaft and cylinder: now shared with the 300 2Str model. The stroke was reduced compared to the past (from 72 mm to 69.9 mm), and consequently the bore was increased (from 66 mm to 67.4 mm) to maintain 250 cubic centimetres. The cylinder’s transfer port geometry was redesigned and now houses a new dedicated piston.
• New cylinder head: combustion chamber has been entirely redesigned to create the ideal operating conditions with the new engine geometry, while still using the double spark plug.

The double spark plug (both on 250 2Str and 300 2Str) brings numerous benefits:

• It offers improved distribution of ignition points in the combustion chamber, with a consequent reduction in fuel wastage. This translates into greater carburation stability at all engine speeds, and more precise control of engine loading under all grip conditions.
• The engine’s range of use is further extended, as both greater torque and more power are available.
• The two spark plugs are managed with a separated electrical system. This means that, if one of the spark plugs should burn out, the engine will still be able to run, although with less efficiency, allowing the race or off-road session to be completed.

With these updates, the torque and linear power delivery were significantly increased, without affecting the overall performances, and also improving the motorcycle’s handling, with centralized weight and lowered centre of gravity. Plus, the crankcase houses larger and stronger main bearings.

The gearbox has also been modified, by significantly lengthening the second gear:

• Gearbox: this has increased the smoothness when switching from second to third gear, with enhanced riding comfort and vehicle stability during and after the gear change. The result is a clear improvement in the bike’s race use, where you can always identify the perfect ratio to face any situation.

Bearings and gear updates also apply to the RR Race 300 2Str.

RR RACE 2T 300 MY 2026

Racing Components – Entire Range

The tried and tested suspension package and the special components of Beta’s race-ready version are confirmed:

• ø 48 mm Kayaba AOS close cartridge fork: anodised internal parts and the treatments administered to the materials minimise sliding friction, while adjustable compression and rebound damping let each rider find the perfect customisation of the setting.
• Kayaba C46 RCU Monoshock: the KYB Monoshock can be considered a benchmark in the racing context for its capacity to absorb the roughness of the terrain, the level of traction transferred to the vehicle, and the consistency of performance, even in particularly heavy use. Its hydraulic setting can be fully customised by adjusting the external compression (both high and low speed) and rebound settings.
• Quick release front axle: immediately recognisable by the red anodised alloy release lever, this component is crucial for saving precious seconds in a race when you need to change a tyre.
• Reinforced handguards: the handguards feature a two-component material mould, and not only give the bike a racing look but also make them especially hard-wearing in even the roughest off-road use.
• Ergal alloy footpegs: to ensure maximum control at all times and no loss of contact with the bike, the RR Race models are fitted with Ergal racing footpegs with steel pins which are interchangeable; these are narrower than in the past to facilitate movement of feet, but better in terms of grip.
• Rear sprocket with anodised aluminium core and steel toothing by ZF SPROCKETS: top-class performance, lightness and strength – the perfect mix of all the attributes any racing component must have.
• Dedicated race seat: with non-slip upholstery and document holder pocket for unparalleled grip, comfort and practicality.
• Racing graphics: to never go unnoticed on the race field.
• Anodised black gear lever and rear brake pedal.
• Gearbox oil filler cap, engine oil filler cap and oil filter cap anodised red aluminium.
• Chain tensioners in red Ergal alloy.

On all two-stroke models, Beta has decided to stick with its choice of doing away with an automatic mixer (available in the Factory Parts catalogue) in order to minimise the weight of the bike.