The Beta 125 RR X-PRO is a lightweight, high-revving enduro bike built for riders who want the excitement and precision of a true 2-stroke in a manageable package. Its 124.8cc liquid-cooled engine uses Beta’s Progressive Valve (BPV) system to deliver strong, responsive power throughout the rev range, while the 6-speed transmission gives you the gearing to tackle everything from tight technical trails to faster open terrain. For 2026, Beta updated the 125 with a new piston and engine head, improving combustion and making the engine more reactive and powerful.
The X-PRO chassis is designed around confidence and control, with a chromoly steel double-cradle frame and adjustable Sachs suspension at both ends. The 48mm Separate Hydraulic Chamber front fork offers adjustable spring preload, compression, and rebound, while the rear shock provides adjustable rebound and high/low-speed compression. With 21"/18" wheels, Maxxis Enduro tires, a 260mm front brake, and 240mm rear brake, the 125 RR X-PRO is equipped to handle demanding singletrack and technical off-road riding.
At just over 200 lbs dry, the 125 RR X-PRO combines the lightweight feel of a small-bore 2-stroke with the full-size chassis and suspension of a serious enduro machine. Whether you're learning the fundamentals of off-road riding, developing your technique, or simply looking for a lightweight bike that rewards an aggressive riding style, the 125 RR X-PRO delivers the balance, responsiveness, and rideability that Beta is known for.
Engine: 124.8cc liquid-cooled single-cylinder 2-stroke with BPV power valve
Bore x Stroke: 54mm x 54.5mm
Fuel System: Keihin PWK 36mm carburetor
Lubrication: Premix
Transmission: 6-speed
Clutch: Wet multi-disc, hydraulic
Frame: Molybdenum steel double-cradle
Front Suspension: 48mm Sachs SHC, adjustable preload, compression & rebound
Rear Suspension: Sachs aluminum-body shock, adjustable rebound & high/low-speed compression
Front Travel: 11.6"
Rear Travel: 11.4"
Front Brake: 260mm floating rotor
Rear Brake: 240mm rotor
Wheels: 21" front / 18" rear
Tires: Maxxis Enduro
Seat Height: 36.6"
Ground Clearance: 12.7"
Fuel Capacity: 2.5 gallons
Dry Weight: ~207–228 lbs depending on model-year specification
2 Stroke
The Beta 200 RR X-Pro 2-Stroke is built for riders who want the lightweight, responsive feel of a two-stroke with the added versatility to tackle everything from tight technical trails to faster open terrain. Its 200cc two-stroke engine delivers strong, controllable power with plenty of low-end torque, while the electric start and oil injection keep the bike convenient and easy to live with. The X-Pro package adds premium components and trail-focused performance, including adjustable suspension, a lightweight chassis, hydraulic disc brakes, and full-size 21"/18" wheels. With its combination of manageable power, nimble handling, and serious off-road capability, the 200 RR X-Pro is an excellent choice for riders who want a capable enduro bike that's easy to maneuver without giving up performance.
Engine: 200cc 2-stroke, single-cylinder
Starting: Electric start
Fuel System: Electronic fuel injection
Transmission: 6-speed
Cooling: Liquid cooled
Frame: High-strength steel perimeter frame
Front Suspension: ZF fully adjustable fork
Rear Suspension: ZF fully adjustable shock
Brakes: Hydraulic disc brakes, front and rear
Wheels: 21" front / 18" rear
Fuel Capacity: ~2.5 gallons
Features: Oil injection, electric start, adjustable suspension, hydraulic brakes, full-size enduro wheels
Riding: Technical singletrack, trail riding, and enduro terrain
The Beta 350 RR X-PRO 4-Stroke is built for riders who want the versatility and control of a 350cc four-stroke without sacrificing the performance expected from a true enduro machine. Its 349.1cc engine delivers a smooth, linear powerband that is easy to manage in technical terrain while still providing plenty of power when the trail opens up.
The X-PRO chassis is designed around Beta's signature "Rideability", giving the bike a balanced and confidence-inspiring feel. Updated engine mapping improves power delivery throughout the rev range, while the adjustable Sachs suspension allows riders to fine-tune the bike for everything from tight singletrack to faster off-road terrain.
With electric start, a six-speed transmission, 48mm Sachs front suspension, and full-size 21/18-inch wheels, the 350 RR X-PRO is an excellent choice for riders looking for a lightweight, agile, and capable four-stroke enduro bike.
Specifications
Engine
Engine Type: Single-cylinder, 4-stroke, liquid-cooled
Displacement: 349.1cc
Bore x Stroke: 88 x 57.4mm
Compression Ratio: 13.19:1
Valve Train: DOHC, 4 titanium valves
Fuel System: Electronic fuel injection with dual injectors
Throttle Body: 42mm
Ignition: Kokusan
Starting System: Electric start
Lubrication: Twin oil pumps
Clutch: Wet multi-disc
Transmission: 6-speed
Final Drive: Chain
Chassis & Suspension
Frame: Molybdenum steel, double-cradle design
Front Suspension: 48mm Sachs hydraulic fork
Front Adjustability: Preload, compression, and rebound
Rear Suspension: Sachs shock with progressive linkage
Front Wheel Travel: 295mm / 11.6"
Rear Wheel Travel: 290mm / 11.4"
Front Brake: 260mm floating disc
Rear Brake: 240mm disc
Front Wheel: 21"
Rear Wheel: 18"
Front Tire: 90/90-21
Rear Tire: 140/80-18
Dimensions
Seat Height: 930mm / 36.6"
Ground Clearance: 315mm / 12.4"
Wheelbase: Approximately 1480mm
Fuel Capacity: 9.0L / 2.4 gal
Dry Weight: 107.5kg / 237 lbs
4 Stroke
The Beta 430 RR X-PRO 4-Stroke delivers the kind of power that makes every trail more exciting while keeping the ride smooth, predictable, and controllable. Its 430.9cc liquid-cooled four-stroke engine provides strong, usable power throughout the rev range, while the balanced X-PRO chassis makes the bike feel planted and confidence-inspiring when the terrain gets technical.
Designed for riders who want serious performance without the uncompromising feel of a dedicated race bike, the 430 X-PRO combines a responsive fuel-injected engine with a six-speed transmission, electric start, dual-map ignition, and on-demand traction control.
The suspension package features a 48mm ZF/Sachs fork and progressive-linkage rear shock, providing 295mm of front travel and 290mm of rear travel. With a 930mm (36.6") seat height and 315mm of ground clearance, the X-PRO is designed to give riders confidence while still offering plenty of capability when the trail gets rough.
Why the 430 X-PRO?
430.9cc liquid-cooled 4-stroke engine
DOHC, 4-valve engine design
42mm throttle body with dual electronic injectors
6-speed transmission
Electric start
Dual-map ignition
On-demand traction control
48mm adjustable Sachs/ZF front fork
Progressive-linkage Sachs/ZF rear shock
11.6" front / 11.4" rear suspension travel
260mm front / 240mm rear wave brakes
21" front / 18" rear wheels
9.0L / 2.4-gallon fuel tank
315mm / 12.4" ground clearance
930mm / 36.6" seat height
Approx. 239 lb claimed dry weight
Meet the Beta 390 RR X-PRO 4-Stroke — a purpose-built enduro machine that hits the sweet spot between lightweight agility and serious four-stroke performance. With 385.6cc of liquid-cooled power, a responsive fuel-injected engine, and a chassis designed for confidence on everything from flowing trails to technical terrain, the 390 X-PRO is ready for whatever the trail throws at you.
Beta's focus on “Rideability” shines through with smooth, manageable power delivery and a balanced chassis that gives both experienced riders and weekend warriors the confidence to push farther.
The 48mm Sachs front fork and progressive-linkage rear suspension provide 11.6 inches of front travel and 11.4 inches of rear travel, giving the 390 the suspension capability to soak up rough terrain while keeping the bike planted and predictable.
Add in traction control, dual-map ignition, electric start, a 6-speed transmission, Nissin brakes, and Maxxis Enduro tires, and you have an enduro bike that's ready to attack the trail straight out of the gate.
Why the 390 X-PRO?
385.6cc liquid-cooled 4-stroke engine
42mm throttle body with dual electronic injectors
6-speed transmission
Electric start
Dual-map ignition with on-demand traction control
48mm fully adjustable Sachs front suspension
Progressive-linkage Sachs rear suspension
260mm front / 240mm rear brakes
21" front / 18" rear wheels
Maxxis Enduro tires
9.0L fuel capacity
315mm ground clearance
930mm (36.6") seat height
107.5kg / 237 lb claimed dry weight
Maximum Torque. Maximum Confidence.
When you want serious four-stroke performance, the Beta 480 RR X-PRO delivers. Powered by a 477.5cc liquid-cooled four-stroke engine, the 480 produces strong, usable power and impressive torque while maintaining the smooth, predictable delivery that makes the X-PRO platform so easy to ride.
The 480 is built for riders who want to cover everything from fast, open trails to technical singletrack. Its balanced chassis, electric start, six-speed transmission, fuel injection, and selectable engine mapping give you the control to make the most of its big-bore performance. Beta specifically tuned the 2026 four-stroke engines for improved linearity and usability across the rev range.
Up front, a 48mm Sachs hydraulic fork provides 11.6 inches of wheel travel, while the progressive-linkage rear suspension provides another 11.4 inches. Add on-demand traction control, powerful 260mm/240mm brakes, 21"/18" wheels, and 12.4 inches of ground clearance, and you've got an X-PRO that's ready to take on demanding terrain with confidence.
Why the 480 X-PRO?
477.5cc liquid-cooled 4-stroke engine
DOHC, 4-valve design
42mm throttle body with dual electronic injection
Electric start
Dual-map ignition
On-demand traction control
6-speed transmission
48mm Sachs hydraulic front fork
Progressive-linkage Sachs rear shock
11.6" front / 11.4" rear wheel travel
260mm front / 240mm rear brakes
21" front / 18" rear wheels
Maxxis Enduro tires
2.4-gallon fuel capacity
12.4" ground clearance
36.6" seat height
239 lb claimed dry weight
The Beta 300 RR X-Pro 2-Stroke is built for riders who want serious enduro performance without giving up the versatility and rideability that make a great trail bike. Its 292.6cc liquid-cooled two-stroke engine combines Beta's Progressive Valve (BPV) power valve system and counter balancer to deliver strong, responsive power while keeping the engine manageable through technical terrain. The six-speed transmission gives you the gearing range to move from tight singletrack to faster open trails, while electronic oil injection and electric start keep the bike simple and convenient to live with. The X-Pro's updated chassis features a larger 22mm rear axle, an updated front brake caliper, larger engine main bearings, and a revised second gear for 2026, improving durability, shifting, and overall handling. At 228 lbs dry with a 36.4-inch seat height, 21"/18" wheels, and 11.6" of front and 11.4" of rear suspension travel, the 300 RR X-Pro has the lightweight feel and ground clearance to attack technical terrain while remaining composed when the trail opens up. Add adjustable Sachs suspension, Brembo-style braking hardware, a 2.5-gallon fuel tank, and Beta's proven two-stroke platform, and the 300 RR X-Pro delivers the perfect balance of power, control, and all-around enduro capability.
Engine: Beta-built single-cylinder, 2-stroke, liquid-cooled, counter-balanced
Displacement: 292.6cc
Bore x Stroke: 73mm x 69.9mm
Power Valve: Beta Progressive Valve (BPV)
Fuel System: Keihin PWK 36mm
Lubrication: Electronic Oil Injection
Ignition: AC-CDI Kokusan
Clutch: Wet diaphragm-style
Transmission: 6-speed
Final Drive: O-ring chain
Starting: Electric start; optional backup kick starter
Weight: 228 lbs / 103.4 kg dry
Frame: Molybdenum steel double cradle with quick air-filter access
Seat Height: 36.4"
Ground Clearance: 12.5"
Wheelbase: 58.3"
Fuel Capacity: 2.5 gallons
Front Suspension: 48mm Sachs SHC fork, single spring, adjustable preload, compression and rebound
Rear Suspension: Aluminum-body Sachs shock, adjustable rebound and high/low-speed compression
Front Wheel Travel: 11.6"
Rear Wheel Travel: 11.4"
Front Brake: 260mm floating rotor
Rear Brake: 240mm rotor
Wheels: 21" front / 18" rear
Tires: Maxxis Enduro
The Beta 250 RR X-PRO 2-Stroke is built for riders who want the sharp, responsive character of a 250cc two-stroke without giving up control in technical terrain. Its liquid-cooled 249cc engine delivers strong low-end torque with a quick, lively power delivery, while the electric starter, six-speed transmission, and electronically controlled oil injection keep it practical for long days on the trail. The X-PRO chassis pairs a lightweight steel frame with 48mm hydraulic forks and a progressive-linkage rear shock, giving the 250 the stability and suspension performance to handle everything from flowing trails to demanding hard enduro. Two selectable engine maps let you choose between Full Power for maximum response and Soft for smoother power in slippery or technical conditions. With 21"/18" wheels, 11.6" of front wheel travel, 11.4" of rear travel, and Nissin braking hardware, the 250 RR X-PRO strikes an excellent balance between power, agility, and confidence — making it one of the most versatile two-stroke enduro bikes in Beta's lineup.
Engine: 249cc liquid-cooled single-cylinder 2-stroke
Bore x Stroke: 67.4mm x 69.9mm
Fuel System: Keihin PWK 36 carburetor
Starting: Electric starter
Transmission: 6-speed
Clutch: Wet multi-disc
Oil System: Electronic separate oil injection
Engine Maps: Full Power / Soft
Frame: Molybdenum steel double-cradle frame
Front Suspension: 48mm hydraulic USD fork
Rear Suspension: Progressive-linkage monoshock
Front Wheel Travel: 11.6" / 295mm
Rear Wheel Travel: 11.4" / 290mm
Front Brake: 260mm wave disc, dual-piston caliper
Rear Brake: 240mm wave disc, single-piston caliper
Wheels: 21" front / 18" rear
Tires: 90/90-21 front / 140/80-18 rear
Seat Height: 36.6" / 930mm
Ground Clearance: 12.6" / 320mm
Fuel Capacity: 2.5 gal / 9.5L
Dry Weight: ~227 lbs / 103kg
Final Drive: Chain