Beta RR X Pro 4T 350 - 2026 Specifications and Reviews

The 2026 Beta RR X Pro 4T 350 is a lightweight enduro machine engineered for serious off-road enthusiasts seeking technical trail performance and reliability. Its 349cc liquid-cooled four-stroke engine with titanium valves and dual electronic injection delivers responsive power ideal for challenging terrain and competitive riding. Best suited for intermediate to advanced riders, this bike excels in rocky, mountainous environments where precision handling and durability are paramount.

2026
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General information

Color OptionsRed/blue/white
PriceUS$ 10299. MSRP depends on country, taxes, accessories, etc.
CategoryEnduro / offroad
ModelBeta RR X-Pro 4T 350
 
 

Engine and Transmission Specifications

StartingElectric
Emission89.1 CO2 g/km. (CO2 - Carbon dioxide emission)
Fuel Consumption3.84 litres/100 km (26.0 km/l or 61.26 mpg)
ClutchWet multi-disc
Final DriveChain (final drive)
Gearbox6-speed
Cooling SystemLiquid
IgnitionKokusan
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
InductionInjection. Synerject dual electronic injection, 42mm
Valves Per Cylinder4
Bore x Stroke88.0 x 57.4 mm (3.5 x 2.3 inches)
Compression Ratio13.2:1
Engine DetailsTitanium valves
Engine TypeSingle cylinder, four-stroke
Capacity:349.1 ccm (21.30 cubic inches)
 
 

Physical measures and capacities

Fuel Capacity9.10 litres (2.40 US gallons)
Wheelbase1491 mm (58.7 inches)
Ground Clearance310 mm (12.2 inches)
Overall Width815 mm (32.1 inches)
Overall Length2180 mm (85.8 inches)
Overall Height1270 mm (50.0 inches)
Seat Height940 mm (37.0 inches) If adjustable, lowest setting.
Dry Weight107.5 kg (237.0 pounds)

Beta RR X Pro 4T 350 dimensions and frame

Rear BrakesSingle disc. 1-piston floating caliper
Brake Disc Diameter240 mm (9.4 inches)
Front BrakesSingle disc. 2-piston floating calipers
Rear Tyre140/80-18
Front Tyre90/90-21
Rear Wheel Travel290 mm (11.4 inches)
Rear SuspensionKYB monoshock with progressive compound lever
Front Wheel Travel295 mm (11.6 inches)
Front SuspensionKYB hydraulic USD fork with 48mm shaft
FrameMolybdenum steel with double cradle split above the exhaust port

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Spark plugsNGK LKAR 8A-9
Coolant1.00 litres (0.26 US gallons)
Engine oilSAE 10W/45
Update specsReport missing specs or required updates.
Oil capacity1.60 litres (1.69 US quarts)
Reserve fuel capacity2.30 litres (0.61 US gallons)
Lubrication system2 oil pumps
Year of manufacture2025

Performance Profile & Rider Fit

Best For

Track25%
City20%
Cornering90%
Daily Riding20%
Touring25%
Passenger5%

Rider Profile

Best ForThis is a competition-focused enduro machine best suited to intermediate through expert off-road riders who are comfortable with a tall seat, minimal weight, and aggressive suspension travel.
PurposeBuilt for technical off-road enduro riding, trail competition, and demanding terrain rather than pavement use, though it carries a plate-capable configuration in many markets.
Rider FitThe tall 940mm seat height and 107.5kg dry weight favor taller, fitter riders who can manage a top-heavy stance at low speed and stand-up riding over rough ground.
CharacterIt rewards a light, active riding style with quick direction changes, aggressive throttle use over obstacles, and confidence unweighting the bike through rocks, roots, and ruts.
Not Ideal ForThis is not a good fit for new riders, commuters, highway travelers, or anyone wanting a plush, low, passenger-friendly touring machine.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 940mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with cannot reach comfortably on the 2026 Beta RR X Pro 4T 350, with a cramped knee angle of around 85 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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Rider Reviews

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