$13,790.00

390 RS Special Edition 4-Stroke

Beta USA is excited to announce the return of the RS Special Edition models—limited-production dual sports built for riders who want more performance right out of the crate. These models sold out quickly when last offered in 2024, and with another small run, they’re expected to be just as hard to get. Like every RS, they remain 50-state street legal, but the Special Edition adds Race Edition styling and premium components for a more aggressive, higher-spec dual sport package.

A standout of the RS Special Edition is the KYB suspension package, featuring a top-tier closed cartridge fork and matching KYB shock for a smoother, more controlled ride when the terrain turns rough. A revised main frame is also included, reducing flex without adding weight—sharpening handling and improving stability at speed. Combined with the equipment below, the RS Special Edition is built to stay ahead of the pack.

RS Special Edition Features

  • 48mm KYB AOS closed-cartridge fork with anodized internals and friction-reducing treatments; fully adjustable compression and rebound

  • KYB shock (46mm body) with adjustable rebound plus high/low-speed compression for traction and consistency in demanding conditions

  • Quick-release front axle with red anodized lever for fast wheel changes

  • Reinforced handguards with two-material construction for durability and protection

  • Machined alloy footpegs with interchangeable steel pins for improved grip and control

  • ZF Sprockets rear sprocket with anodized aluminum core and steel teeth for strength and reduced weight

  • Dedicated race seat with non-slip cover and document pocket

  • Race-inspired graphics to match the performance focus

  • Anodized black gear lever and rear brake pedal

  • Red anodized caps (gearbox oil filler, engine oil filler, and oil filter cap)

  • Red machined chain tensioners

Specification 500 RS
ENGINE TYPE Single cylinder, 4-stroke, liquid cooled, 4-valve (Titanium intake and steel exhaust), cooling fan, electric start (back up kick starter optional)
BORE 100mm
STROKE 60.8mm
DISPLACEMENT 477.5cc
COMPRESSION RATIO 11.86:1
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 58.7″
SEAT HEIGHT 36.8″
GROUND CLEARANCE 12.2″
FOOTREST HEIGHT 16.1″
DRY WEIGHT 237 lbs
FUEL TANK CAPACITY 2.4 US Gallons
FRONT SUSPENSION 48 mm Sachs Open Cartridge with compression, rebound & ignition spring preload adjustment
REAR SUSPENSION Aluminum Body Sachs shock w/ adjustable rebound and hi/low speed compression
FRONT WHEEL TRAVEL 11.6″
REAR WHEEL TRAVEL 11.4″
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
WARRANTY 24 Months Limited Warranty
MSRP $12,690.00
DESTINATION TBA

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