Beta’s RR Race models are built for riders who line up on a starting row rather than at a trailhead. For 2027, the quartet of four-stroke Race models shares one set of changes: two new electronic controls, plus engine and hardware revisions aimed at increasing reliability and providing consistent performance over a long season.

The four-stroke RR Race range covers the 350, 390, 430, and 480. Apart from displacement, the four bikes are identical, so every 2027 change applies across the board. All of them carry over the suspension package that defines the Race models: a 48mm KYB closed-cartridge fork with compression- and rebound-damping adjustment, matched to a KYB shock adjustable for rebound damping plus high- and low-speed compression damping. The rest of the Race hardware returns, including the red anodized quick-release front axle, two-component molded handguards, billet aluminum footpegs with a curved top and replaceable stainless steel pins, a ZF rear sprocket with an aluminum center and steel teeth, a gripper seat with a document pocket, race graphics, black anodized shift and brake levers, red anodized oil caps, and red anodized chain adjuster blocks.

- Titanium valves are now standard on both the intake and exhaust sides across all four models. Titanium is lighter than steel, which lets the valvetrain follow the cam more accurately at high rpm. That cuts down the load on the springs. The practical benefit for a rider shows up in the maintenance log: lighter valves stay in adjustment longer, so the shim-check interval stretches out.

- The fully mechanical cam chain tensioner is new. It maintains the correct adjustment regardless of engine temperature or rpm. Beta debuted this tensioner on the 2026 RX motocross and 450 RC cross-country competition models, where it reduced low-speed flameouts.

- Launch control is new for 2027 and arrives with five settings. The system meters torque off the line, so the rear tire hooks up rather than spinning or lifting the front end. Five levels give a rider room to match the setting to the dirt, from hardpack to sand to mud.

- A quickshifter joins the electronics package. It lets a rider upshift without closing the throttle, so drive never breaks between ratios. In addition to acceleration gains, it reduces right-hand wear and tear over a two-hour race.
- The button array on the bar-clamp pad now carries four functions. Beta added launch control and quickshift buttons alongside the two-level traction control and the map switch, which picks between two engine maps. As is Beta custom, operating any of the buttons requires a hand off the grip. These are settings you make before a start, or on a smooth section where you can spare a hand. That is still four things a rider can change during a race where there used to be two.

- The voltage regulator has been replaced with a higher-output unit. It charges the battery harder at high rpm, which resolves low-battery symptoms that can show up on a bike running a full electronics suite. With launch control, traction control, a quickshifter, and electric start all drawing from the same battery, the extra charging capacity is not a luxury.
- The KYB suspension gets revised valving for 2027. Beta’s engineers and race team change the shim stacks in the 48mm closed-cartridge fork and the shock every model year, working toward a better balance between plushness and bottoming resistance.

- Final drive protection is improved. The chain guide has a reinforced structure to better withstand mud, rocks, and impacts. This keeps the chain tracking properly and reduces the risk of derailment in rough conditions. At the front, a redesigned sprocket guard covers a larger area and is stronger than the part it replaces. This is part of the enhanced reliability package for 2027.

- The cockpit gets a new speedometer and new grips. The Trail Tech dash shows a larger mph readout, along with rpm, total miles, resettable trip meters for enduro resets, and engine hours. The new gray grips are softer than the previous compound. Beta says this is to reduce vibration getting through to the rider’s hand, another way to reduce rider fatigue.
- A new LED headlight sits behind a redesigned headlight mask. Beta’s designers built the mask around a current-generation LED unit that throws a stronger beam while drawing less power than the outgoing light, which takes further strain off the battery. The mask also changes the bike’s front-end look, which is the most visible difference between a 2027 Race model and a 2026 model.

- Beta held four-stroke Race pricing flat for 2027. The RR 350 Race is $11,990 MSRP, the RR 390 is $12,190, the RR 430 is $12,390, and the RR 480 is $12,590. Beta did it while adding two electronic systems and titanium valves across the range. The four-stroke Race models reach US dealers in November.
- The big story of the 2027 Beta RR Race four-strokes is reliability and ease of use. The frame and the displacements carry over unchanged. Beta instead worked on titanium valves, revised suspension damping, a mechanical cam chain tensioner, a higher-output voltage regulator, and stronger protection on the chain side, then handed the rider launch control and a quickshifter to use all of it. The pattern aims to maintain durability and performance throughout a full racing season.
2027 Beta RR Race 4-Stroke Specifications
ENGINE
- Type: Single-cylinder 4-stroke; liquid-cooled
- Displacement: 480: 477.5cc; 430: 430.9cc; 390: 385.6cc; 350: 349.1cc
- Bore x stroke: 480: 100 x 60.8mm; 430: 95 x 60.8mm; 390: 88 x 63.4mm; 350: 88 x 57.4mm
- Compression ratio: 480: 11.86:1; 430: 12.33:1; 390: 12.48:1; 350: 13.19:1
- Valvetrain: 4 titanium valves
- Fueling: 42mm throttle body w/ dual injectors
- Ignition: Dual-map Kokusan; 200-watt output
- Starting: Electric
- Lubrication: Twin oil pumps w/ cartridge filter; separate engine and transmission compartments
- Transmission: 6-speed w/ quickshifter
- Clutch: Wet diaphragm-style
- Final drive: O-ring chain
CHASSIS
- Frame: Double-cradle molybdenum steel w/ quick air filter access
- Front suspension; travel: Compression- and rebound-damping adjustable KYB 48mm AOS closed-cartridge fork; 11.8 inches
- Rear suspension; travel: Rebound- and high/low-speed compression-damping adjustable KYB shock; 11.3 inches
- Tires: Maxxis MaxxEnduro
- Front tire: 90/90-21
- Rear tire: 140/80-18
- Front brake: 260mm floating disc w/ 2-piston Nissin caliper
- Rear brake: 240mm disc w/ single-piston Nissin caliper
DIMENSIONS and CAPACITIES
- Wheelbase: 58.1 inches
- Seat height: 37.4 inches
- Ground clearance: 13.2 inches
- Footrest height: 16.8 inches
- Fuel tank capacity: 2.4 gallons
- Wet weight: 252 lbs
2027 Beta RR Race 4-Stroke Prices
- RR 350 Race: $11,990 MSRP
- RR 390 Race: $12,190
- RR 430 Race: $12,390
- RR 480 Race: $12,590


























