Overview

2026 Beta RS Special edition390

Motorcycle

390 RS Special edition

Beta USA is happy to announce the return of the highly sought-after RS Special Edition models! These models sold out swiftly the last time they were offered in 2024, and with a limited production, should retain their high demand. 50-state street legal and decked out in Race Edition clothing, these new models are for the rider looking for a higher level of performance dual sport. KYB Suspension highlights the overall package with a top line closed cartridge front fork and a 48mm KYB rear shock that provides a silky smooth ride when the terrain becomes nasty. An updated main frame is also included that provides less flex without any added weight. Finished off with many other features listed below, keeps the RS Special Edition models ahead of all others who dare try to keep up.

Starting at $13,790 MSRP

Specs & Features

Specifications
ENGINE TYPE
88mm
BORE
63.4mm
STROKE
385.6cc
DISPLACEMENT
12.48:1
COMPRESSION RATIO
Titanium Intake & Exhaust
VALVE TRAIN
Titanium Intake & Exhaust
IGNITION
Dual-Map Kokusan 200w output On Demand Traction Control
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
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
DOT Maxxis Enduro
ELECTRICAL
Trail Tech Voyager GPS unit
48 mm Kayaba (KYB) AOS close cartridge fork
anodized internal parts and the treatments administered to the materials minimize sliding friction, while adjustable compression and rebound damping let each rider find the perfect customization of the setting.
Kayaba (KYB) 46mm Shock
the KYB single shock can be considered a benchmark in the racing context for its capacity to absorb the roughness of the terrain, the level of traction transferred to the rear wheel, and the consistency of performance, even in particularly heavy use. The hydraulic setting can be fully customized by adjusting the external compression (both high and low speed) and rebound settings.
Quick release front axle
immediately recognizable by the red anodized alloy release lever, this component is crucial for saving precious seconds in a race when you need to change a tire.
Reinforced handguards
the handguards feature a two-component material mold, and not only give the bike a racing look but also make them especially hard-wearing in even the roughest off-road use.
· Machined alloy footpegs: to ensure maximum control at all times and no loss of contact with the bike, the footpegs have steel pins which are interchangeable; these are narrower than in the past to facilitate movement of feet, but better in terms of grip.
Rear sprocket with anodized aluminum core and steel teeth by ZF SPROCKETS
top-class performance, lightness and strength - the perfect mix of all the attributes any racing component must have.
Dedicated race seat: with non-slip upholstery and document holder pocket for unparalleled grip, comfort and practicality.
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