2017 Beta 390 RR-S

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Features

  • SACHS FRONT FORK: RR models arrive with the Gen4 Sachs front fork. This fork has been tested by the Beta engineering team many times over to improve the feel of the front end. We feel this is the best open cartridge fork on the market today.
  • PUSHBUTTON SEAT: All Beta RR and RS models arrive with a push button quick release seat. This allows for easier access to the air filter, battery, and tool kit.
  • ELECTRONIC FUEL INJECTION: Beta's exclusive EFI system is more than five years in the making. Unique to the system is the ability for dealers to be able to offer two different engine braking settings.
  • QUICK-CHANGE AIR FILTER SYSTEM: Simply remove the seat with a button, pop off the side panel and the air filter is in broad daylight easy to change. More access than any other model, period!
  • SPARK ARRESTOR: All Beta 4 strokes come standard with a USFS approved spark arrestor. This muffler is quiet and light without robbing horsepower.

General Information

Manufacturer Beta
Model Year 2017
Model 390 RR-S
Model Code 390RRS
Color Red

Brakes/Wheels/Tires

Brakes

Front - 260 mm rotor

Rear - 240 mm rotor

Wheels

Front Rim - 21 in.

Rear Rim - 18 in.

Tires Front / Rear - Michelin Enduro (DOT approved)

Dimensions

Weight Dry - 244 lb.
Ground Clearance 12.6 in.
Wheelbase 58.7 in.
Seat Height

36.8 in.

Footrest - 16.2 in.

Drivetrain

Transmission 6-speed
Final Drive O-ring chain

Engine

Engine Single cylinder, 4-valve, (titanium intake and exhaust), 4-stroke, cooling fan, electric start with back up kick starter.
Displacement 386 cc
Bore x Stroke 88 x 63.4 mm
Compression Ratio 12.5:1
Fuel System Electric Fuel Injection - 42 mm
Fuel Capacity US gal. - 2
Ignition

DC-CDI (TCI) with dual map selection, Kokusan; 200W output @ 6,000 rpm

Spark Plug - NGK LKAR 8A-9

Clutch Wet multi-disc
Cooling Liquid
Exhaust Titanium intake and exhaust
Lubrication Twin oil pumps with cartridge oil filter; separate oil for engine and clutch
Gear Ratio

Final Gearing Front - 15t

Final Gearing Rear - 49t

Operational

Starting Electric with back up kick starter
Frame Molybdenum steel, double cradle with quick air filter access
Suspension

Front - 48 mm Sachs USD fork, adjustable compression and rebound, TFX technology

Front Wheel Travel - 11.4 in.

Rear - Aluminum body Sachs shock with adjustable rebound and hi / low speed compression

Rear Wheel Travel - 11.4 in.

Rake Steering - 26.5°
Trail Offset - 23 mm
Instrumentation Trail Tech Voyager GPS unit

Other

Warranty 12 month Limited Warranty