RR X-PRO
4T 350 MY27

My26
My27

The RR X-PRO 4T 350 is the most manoeuvrable engine in the 4-stroke range: it favours high-rev riding whilst maintaining linear and manageable power delivery. It is the ideal choice for those seeking an agile and fun 4-stroke, without compromising on Beta’s racing DNA.

FIND YOUR DEALER DOWNLOAD THE brochure

349,1 cc

Displacement

88 x 57,4 mm

Bore x stroke

930 mm

Seat height

107 kg

Dry weight

MAIN FEATURES

ENGINE

Maps, Traction and Electronics

The 4-stroke engine maps improve power delivery in terms of linearity and usability. The real innovation for MY27 is the introduction, within the redesigned handlebar guard, of the electronic controls for Launch Control (with 5 levels to maximise traction on the start) and Quick Shift, allowing gear changes without releasing the throttle.

SHC front fork

It retains the asymmetrical layout with separate function management, resulting in a weight saving of approximately 250 g. For the MY27, it features a completely revised setup, designed to broaden the range of use and optimise shock absorption during the initial phase of operation.

XPRO Mono

Developed in synergy with the front fork, the rear shock absorber reduces weight thanks to new aluminium components and clearly separates hydraulic behaviour at high and low speeds. It introduces an external adjustment system that allows for immediate on-the-spot setting without tools.

INTEGRATED ELECTRONIC MANAGEMENT

The handlebar protection has been given a new look and features a redesigned control panel that brings together the bike’s controls. In addition to the traditional two engine maps (Standard and Soft) and the tried-and-tested two-level Traction Control, new features include 5-level Launch Control for lightning-fast starts and Quick Shift, for changing gears without releasing the throttle.

Trailtech instrumentation and details

The new Trailtech digital dashboard makes its debut: larger, more robust and easier to read, paired with a high-precision wheel sensor. The MY27 package adds new, softer anti-fatigue grips, a reinforced chain guide and an enlarged pinion guard.

Purely mechanical chain tensioner

The engine features a new mechanical chain tensioner with a newly calibrated spring, replacing the previous hybrid hydraulic/mechanical system. This solution reduces friction, optimises smoothness of operation and ensures more effective starts in both hot and cold conditions.

TITANIUM VALVES

The update to the 4-stroke engine includes new titanium valves with a revised finish. A technical solution of the highest quality that further raises the engine’s standards of durability and reliability when running at high revs.

COOLANT EXPANSION TANK

The coolant expansion tank, with a capacity of approximately 200cc, allows for the recovery of water that may be expelled from the radiator as temperatures rise, particularly during slower, more technical riding, or during extreme enduro sections.

SILENT BLOCKS

The silent blocks help reduce vibrations transmitted to the rider, making the ride more comfortable and less tiring.

A distinctive and high-tech design

The RR X-PRO 4T 350 revamps its sporty look with a newly redesigned headlight mask. Inside, it houses a robust, latest-generation LED headlight that delivers a significantly more powerful beam than before whilst reducing power consumption to fully protect the battery.

Do you need further information?
manual brochure Tech Specs

CHASSIS

Frame

Molybdenum steel with double cradle split above
the exhaust port

Wheelbase

1480 mm

Max length

2180 mm

Max width

830 mm

Max height

1270 mm

Seat height

930 mm

Ground clearance

315 mm

Footrest height

407 mm

Dry weight

107,5 kg (front 52,7 kg; rear 54,8 kg)

Fuel tank capacity

9,0 l

Reserve

2,3 l

Cooling system capacity

1,4 l

Front suspension

Hydraulic USD fork with ø 48 mm shaft

Rear suspension

Monoshock with progressive compound lever

Shock absorber stroke

132 mm

Front wheel travel

295 mm

Rear wheel travel

290 mm

Front brake

Wave disc ø260 mm and double-piston floating
caliper

Rear brake

Wave disc ø240 mm and single-piston floating
caliper

Front rim

21 x 1,6 – 36 holes

Rear rim

18 x 2,15 – 36 holes

Front tyre

90/90 – 21

Front tyre

140/80 -18

ENGINE

Type

Single cylinder, 4-stroke, liquid-cooled

Bore

88 mm

Stroke

57,4 mm

Displacement

349,1 cc

Compression ratio

13,19:1

Valve train

DOHC finger follower / 4 titanium valve

Starter

Electric starter

ACG

Kokusan

Spark plug

NNGK LKAR 8A-9

Lubrication

2 oil pumps

Fuel system

Elldor dual electronic injection

Throttle body

Ø 42 mm – Synerject

Clutch

Wet multi-disc clutch

Primary drive

Z.28/76

Transmission

6 gears

Final transmission

Chain

Engine oil

SAE 10W/50 0,8 l. + SAE 10W/40 0,8 l.

Consumo l/100km

3,4

Pollution Co2 [g/km]

80

Discover the RR X-PRO range
SEE ALL

ACCESSORIES

ACCESSORIES CATALOGUE

FIND OUT MORE

DEALERS

FIND YOUR DEALER

FIND OUT MORE