Dirt Bikes

2024 Beta 300 RR Race Edition Technical Information

Features and specifications of Beta’s up-spec 300 two-stroke enduro.

May 1, 2024

Beta has been breaking the mold as of late. Besides an all-new 450 RX four-stroke motocrosser, the Italian manufacturer has been continually improving its two-stroke lineup as well. The 2024 Beta 300 RR Race Edition is the culmination of its efforts. With a new frame for 2024 and an exclusive twin-spark ignition system, the 300 RR Race Edition is the most advanced ride in Beta’s two-stroke arsenal. Featuring a counterbalanced, Keihin carburetor-fed engine with a six-speed transmission, there’s familiarity in the package for two-stroke die-hards. Read on to learn more about the 300 RR Race Edition and for a visual overview of Beta’s class-leading componentry.

Related: 2022 Beta 300 RR Review

The 2024 Beta 300 RR Race Edition in the wild. We could not wait to hit familiar SoCal trails on this beautiful motorcycle.Jeff Allen

The carbureted liquid-cooled two-stroke 293cc single-cylinder engine has updates for 2024. A new twin-spark ignition system is said to decrease fuel consumption while offering a cleaner burning engine: Two NGK GR7CI8 plugs are used. The cylinder head coolant hose routes to the front and into the thermostat, and the rear of the cylinder head is where the second spark plug can be found. Yes, a Moto Tassinari VForce4 reed block is standard equipment.Jeff Allen

Made in Italy! The 300 RR Race Edition features a unique 73.0 x 69.9mm bore and stroke. Unlike the 72.0 x 72.0mm dimensions found on Beta’s 300 RX motocross model, the 300 RR Race Edition specs are model- and off-road specific.Jeff Allen

Carbureted bikes are alive and well in 2024. The Keihin PWK 36mm carb runs flawlessly and requires premix fuel, whereas the standard 300 RR utilizes an electronic oil injection system.Jeff Allen

A properly oiled Twin Air air filter comes standard. Like many Beta models, the 300 RR Race Edition features quick-change accessibility and no-tools servicing.Jeff Allen

The Beta Progressive Valve (BPV) power valve system is extremely tunable, and located directly under the water pump assembly. Adjusted from all the way out, or the “fully open” position per Beta’s service manual, standard setting is one turn in. Clockwise tuning mellows the delivery, while counterclockwise adjustment provides more excitement. Beta warns new owners not to tighten the 5mm adjustment screw more than 3.5 turns from the fully open position.Jeff Allen

Black and red accents can be found throughout, and the wraparound skid plate comes standard. Note the starter assembly located on the bottom side of the cases, well protected by the frame rails and black skid plate.Jeff Allen

Beta leaves a kickstarter boss in the cases, just in case owners prefer the tried-and-true backup system. The Build Your Own Beta (BYOB) program is an amazing resource for interested buyers.Jeff Allen

An Arrow-built nickel-plated pipe comes standard on the 300 RR Race Edition. This premium plated exhaust blues up nicely once ridden! Beta’s white plastic radiator louver guards are also some of the best in the business, extending far below the tank for proper protection.Jeff Allen

Although long in physical length, the silencer emits a pleasant tone from the Beta 300 RR Race Edition. A boot shield and easily accessible bolts for surveillance checks are nice touches.Jeff Allen

Even the radiator hoses have Beta logos. The horizontal radiator braces help keep everything straight when crashing, and an optional fan kit is available from Beta as well.Jeff Allen

Engine start and stop buttons can be found on the rider’s right side of the handlebars. Even with hand guards, bar space is clean and organized on the 300 RR Race Edition. Domino throttle housing and glue-on grips are also standard equipment.Jeff Allen

The engine map switch is easy to find; just look down! Located at the front of the gas tank, riders have two available settings which illuminate when running: Sun mode (full power) and rain mode (slightly mellower). We leave ours set to sun mode in good weather, but options are always nice.Jeff Allen

Seat removal is easy, with one push-button utilized in Beta’s design. Air filter changes are quick and efficient thanks to the no-tools removable side panel.Jeff Allen

Behind the curtain: Beta’s battery arrangement and seat mechanism. The 300 RR Race Edition airbox breathes a little better than other Beta dirt bikes. On the oil-injected standard RR models, for example, the required oil reservoir is located in the void in front of the battery.Jeff Allen

Besides the premix versus oil-injection system, the major difference between the 300 RR Race Edition ($10,399) and standard-model 300 RR ($10,099) is the suspension package. Kayaba (KYB) components can be found on the 300 RR Race Edition.Jeff Allen

The KYB C46 shock is a premium component that off-road racers and performance-minded individuals will appreciate. Featuring high- and low-speed compression damping, rebound damping, and spring preload tuning, there’s a setting for everyone that can be found within.Jeff Allen

The blue 17mm nut is the high-speed compression adjuster. Low-speed compression tuning is the flat-blade screwdriver adjuster located within the blue high-speed dial. Clockwise is stiffer, counterclockwise is softer.Jeff Allen

The lowermost flat-blade screwdriver adjuster is for rebound adjustment, located on the shock clevis. Clockwise tuning slows shock rebound (increases damping), while counterclockwise adjustment speeds it up.Jeff Allen

The powdercoated black swingarm, red axle block, and red plastic chain guide are all standard equipment.Jeff Allen

An O-ring chain and aluminum/steel hybrid rear sprocket transfer the 300 RR Race Edition’s strong and predictable power.Jeff Allen

Red axle block and properly greased axle and nut. The 240mm rear brake rotor glistens in the background.Jeff Allen

Excel rims and Maxxis tires come standard, while the rear 140/80-18 sizing is bigger than expected. No worries; Beta’s 300 RR Race Edition has the power to pull it.Jeff Allen

Unlike the rear, the front uses a red anodized quick-release axle pull. It’s also interesting to note Beta’s current fork guard design, which features a unique transition at the bottom, near the fork lug pinch bolts.Jeff Allen

Beta leaves no stone left unturned: Even the odometer indicator is anodized red to match the various accents on the machine. The 260mm front brake rotor, steel-braided brake line, billet hub, black spokes, and quality Nissin brake pads are appreciated.Jeff Allen

Nissin rear brake caliper and accompanying 240mm rotor. Combined with a steel-braided brake line, you have some of the best components in the industry. Staff photographer Jeff Allen and I take pride in getting the closeups while dodging distracting reflections, but the Beta shine near the banjo bolt was too great on this day!Jeff Allen

Black anodized footpegs with steel pins come standard. Beta insignias can be found throughout its bikes, and provide a factory look and feel straight off the showroom floor.Jeff Allen

An AC-CDI Kokusan ignition powers the headlight. Unlike many brands that route the front brake line and odometer cable behind the front number plate, Beta remains old-school.Jeff Allen

View of the dashboard. Our 300 RR Race Edition was brand-brand new, with only 1 mile on the machine at time of photography.Jeff Allen

Horn, turn signals, and low- and high-beam headlight switch on rider’s left. The controls are easy to navigate when riding. One can only imagine how much fun could be had for those in states where license plates are easily obtained for dirt bikes.Jeff Allen

I call these fun-size bar pads. Yes, they get the job done, but excess material there is not. Beta handlebar mounts are adjustable with a six-position range, and are solid-mounted. The throttle cable routes to the backside of the bar pad.Jeff Allen

Red and blue hand guards keep the digits safe. The black Nissin front brake master cylinder, steel-braided line, and 260mm front rotor provide strong and progressive braking power.Jeff Allen

The red, white, and blue shroud graphics are instant eye-catchers. It’s cool that Beta includes sponsor logos and product providers on OE designs as well. Personally, I appreciate a proper translucent gas tank, and Beta’s features a 2.5-gallon capacity.Jeff Allen

It’s the little things with Beta. This pouch is great for general notes, checkpoints, rider identification, and medical information, et cetera.Jeff Allen

For riders who appreciate a simpler time, when carburetors ruled the roost and 300 two-strokes were the cat’s meow, it’s hard to go wrong with Beta’s 300 RR Race Edition. Rideability remains the Beta tagline, but this 300 is the brand’s most raceable.Jeff Allen

2024 Beta 300 RR Race Edition Specs

MSRP:	$10,399
Engine:	Liquid-cooled, two-stroke single-cylinder
Displacement:	293cc
Bore x Stroke:	73.0 x 69.9mm
Compression Ratio:	11.6:1
Transmission/Final Drive:	6-speed/chain
Dirt Rider Measured Horsepower:	41.1 hp @ 8,400 rpm
Dirt Rider Measured Torque:	29.4 lb.-ft. @ 6,700 rpm
Fuel System:	Keihin PWK 36mm carburetor
Clutch:	Wet, multiplate; hydraulic actuation
Frame:	Double-cradle chromoly steel
Front Suspension:	KYB Air-Oil Separate (AOS) 48mm closed-cartridge coil-spring fork, compression and rebound damping adjustable; 11.6 in. travel
Rear Suspension:	KYB shock, spring preload, high/low-speed compression damping, and rebound damping adjustable; 11.4 in. travel
Front Brake:	Nissin 2-piston caliper, 260mm floating disc
Rear Brake:	Nissin 1-piston caliper, 240mm disc
Tires, Front/Rear:	Maxxis MaxxEnduro; 90/90-21 / 140/80-18
Rake/Trail:	N/A
Wheelbase:	58.3 in.
Ground Clearance:	12.6 in.
Dirt Rider Measured Seat Height:	38.0 in.
Fuel Capacity:	2.5 gal.
Dirt Rider Measured Wet Weight:	247 lb.
Availability:	Now
Contact:	betausa.com