Enduro Bikes

2027Beta RR X-Pro 4T 390

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The 2027 Beta RR X-Pro 4T 390 is a lightweight enduro machine designed for serious off-road riders seeking technical trail performance. Its 385cc four-stroke engine delivers responsive power with advanced fuel injection and liquid cooling, while titanium valves and dual overhead cams ensure durability. Best suited for competitive enduro enthusiasts and adventure riders tackling challenging terrain.

Capacity: 385.6 ccm
Engine: Single, four-stroke
Gearbox: 6-speed
Dry weight: 107.5 kg
Seat height: 930 mm
Power: Not on record
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What’s new for the 2027 Beta RR X-Pro 4T 390

vs the 2026

Spec	2026	2027
Seat height	940 mm (37.0 inches)	930 mm (36.6 inches)
Front suspension	48 mm ZF Sachs SHC open-cartridge USD fork	48 mm USD Sachs SHC fork, adj. preload/comp/reb
Rear suspension	KYB monoshock with progressive compound lever	Sachs aluminium-body shock, progressive link, tool-less hi/lo comp adj.
Front brakes	Single disc. 2-piston floating calipers	Single 260 mm wave disc, 2-piston floating caliper
Rear brakes	Single disc. 1-piston floating caliper	Single 240 mm wave disc, 1-piston floating caliper

Other years 2025 2026 2027

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail96%

Cornering70%

City riding25%

Daily riding20%

Touring20%

Two-up5%

Track35%

Best for: Built for competitive and recreational enduro use, this bike is designed to attack tight trails, roots, rocks, and technical terrain rather than pavement.
Built for: The high-compression, DOHC titanium-valve single with traction control gives a peaky, responsive, race-bred character that thrives at higher revs on loose surfaces.
Not ideal for: This is not a good fit for new riders, commuters, or anyone wanting a comfortable, low-effort street or touring bike.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

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Your height

Inseam (optional)

Units

At 930mm, a rider of 68.9" with a 31" (estimated) inseam will not reach the ground comfortably on the 2027 Beta RR X-Pro 4T 390, with a cramped knee angle of around 80 degrees and an upright riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at over 900 mm — Sky High →

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Full specifications

Engine

Capacity: 385.6 ccm
Engine type: Single, four-stroke
Fuel consumption: 3.30 litres/100 km (30.3 km/l)
Bore x stroke: 88.0 x 63.4 mm
Compression: 12.5:1
Cooling system: Liquid
Fuel system: Injection
Starting: Electric
Ignition: Kokusan
Valves per cylinder: 4
Lubrication system: 2 oil pumps
Power: Not on record - add it
Torque: Not on record - add it

Transmission

Gearbox: 6-speed
Transmission type: 6-speed manual
Final drive: Chain
Clutch: Wet multi-disc

Dimensions & weight

Wheelbase: 1480 mm
Overall length: 2180 mm
Overall width: 830 mm
Overall height: 1270 mm
Seat height: 930 mm
Dry weight: 107.5 kg
Fuel capacity: 9.00 litres
Ground clearance: 315 mm
Oil capacity: 1.60 litres
Reserve fuel capacity: 2.30 litres

Chassis & suspension

Frame: Molybdenum steel with double cradle split above the exhaust port
Front suspension: 48 mm USD Sachs SHC fork, adj. preload/comp/reb
Rear suspension: Sachs aluminium-body shock, progressive link, tool-less hi/lo comp adj.
Front wheel travel: 295 mm
Rear wheel travel: 290 mm