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2025 Beta 390 RR Race 4-Stroke

Starting at $11,199

390 RR Race 4-Stroke

The 2025 RR Race bikes represent the race-ready versions of Beta’s newly-introduced X-Pro models, with a series of modifications to the engine, suspension, and frame, making them ideal for providing their best on the track. Designed for both low and high-speed courses, the Race models will provide riders with the confidence and Rideability that only Beta can deliver.

ENGINE TYPE
Single cylinder, 4 –stroke, liquid cooled, 4-valve (Titanium intake and exhaust), electric start
BORE 88mm
STROKE 63.4mm
DISPLACEMENT 385.6cc
COMPRESSION RATIO 12.48:1
VALVE TRAIN Titanium Intake & Exhaust
IGNITION
Dual-Map Kokusan 200w output
SPARK PLUG NGK LKAR8A-9
LUBRICATION
Twin Oil Pumps w/ Cartridge Filter & Separate Compartments For Engine & Transmission
FUEL SYSTEM
42mm Throttle Body w/ Dual Injectors
CLUTCH Wet Diaphragm-style
TRANSMISSION 6 Speed
FINAL DRIVE O-ring chain
TRACTION CONTROL
On-Demand w/ push of a button
FRAME
Molybdenum steel / Double Cradle w/ quick air filter access
WHEELBASE 58.1″
SEAT HEIGHT 37.4″
GROUND CLEARANCE 13.2″
FOOTREST HEIGHT 16.8″
DRY WEIGHT 237 lbs
FUEL TANK CAPACITY 2.4 US Gallons
FRONT SUSPENSION
48 mm KYB AOS closed cartridge fork, adjustable compression & rebound
REAR SUSPENSION
KYB 46mm body with adjustable rebound and high/low speed on compression adjustment
FINAL GEARING 13T Front/49T Rear
FRONT WHEEL TRAVEL 11.8″
REAR WHEEL TRAVEL 11.3″
FRONT BRAKE 260 mm floating rotor
REAR BRAKE 240 mm rotor
FRONT/REAR RIM 21″ (Front) 18″ (Rear)
FRONT/REAR TIRE Maxxis Maxx Enduro
SPECS
*Specifications subject to change without notice. Additional information on all models including manuals, accessories and parts books are available online at www.betausa.com under SUPPORT.
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