First Look: 2018 Beta 125 RR Two-Stroke

The folks at Beta have been upping their game lately in the off-road racing department with new and updated models as well as a factory off-road team. This was also apparent in our test of the 430 RR-S and how well it performed at the 24 Hours of Glen Helen last year. This  With the addition of the XC3 125 Pro class in the GNCC Series this year, Beta has unveiled a brand new 125cc two-stroke. The goal for this bike is to be able to serve as both a play bike and a competitive race bike against any other small bore two strokes in its class.

The Technical and R&D Departments at Beta’s Italian factory have been working hard to produce this new machine with weight distribution and power delivery being the main focus during engine development. The compact engine design provides optimal reliability along with performance with a smooth but powerful power delivery. The two ring piston design provides reliability and better performance in the low to mid RPM ranges which is common with enduro riding. Likewise, the exhaust flange system on the cylinder is similar to the other 2018 RR models which is claimed to have better control of the piston-flap-cylinder front tolerance for better performance at low RPM. A Beta progressive power valve and a crankshaft with polyamide inserts are also featured for better performance.

Additionally, a removable cylinder head dome, possible due to moving the engine mount to the cylinder, is rigid and lightweight and allows for fine tuning and replacement of the combustion chamber for better power throughout. The die-cast aluminum crankcase features an innovative design dayout to reduce weight without compromising strength. Magnesium clutch and ignition covers provide minimal weight with the best looks while the inner clutch cover also receives this finish since it’s now isolated from the water pump. The bike comes stock with V-Force4 Reed Valves for optimum low-end power output. The multi-disc clutch features the clutch actuator arm integrated into the outer cover unlike the 250 and 300 RR’s. It also displays a 6-speed gearbox and is ready for an electric-starter which is offered as an accessory.

The chrome-moly steel frame was redesigned from the 250/300 RR frame to compliment the smaller and more compact engine and enhance its ridability and maneuverability. The upper engine head stay was altered to reduce vibrations while still maintaining optimal stiffness. The Sachs 48mm open-cartridge fork and the shock have its unique settings developed specifically for this bike and the Nissin brakes remain as well. It also comes with a skid plate and a filter box sleeve to improve the flow from low to high RPM’s.

It displays the same colors and graphics as the rest of the 2018 RR range and the price has yet to be determined. Additionally, it will be available at Beta USA dealers in early February of 2018.