Jim Trenary Motorsports

Specifications

• 2022 Beta 390 RR Race Edition 4-Stroke Base
• Year2022
• ManufacturerBeta
• Model Name390 RR Race Edition 4-Stroke
• Trim NameBase
• Generic Type (Primary)Off-Road
• Engine TypeSingle cylinder, 4-valve, (Titanium intake and Steel exhaust), 4-stroke, liquid cooled, electric start with a back-up kick starter sold as an option
• Displacement385.6cc
• Bore88mm
• Stroke63.4mm
• Compression Ratio12.48:1 | Primary: 28:76
• LubricationTwin oil pumps with cartridge oil filter. Separate oil for engine and clutch
• Fuel System42mm Electronic Fuel Injection (Twin Injectors)
• IgnitionDC-CDI with variable ignition timing, Kokusan. 200 watt output at 6000 RPM
• Traction Control SystemOn-Demand with push of a button
• Spark PlugNGK LKAR8A-9
• Drivetrain
• ClutchWet multi-disc
• Transmission6-speed
• Final DriveO-ring chain DID
• Final Gear13t Front, 49t Rear”
• Frame TypeMolybdenum steel/double cradle split above exhaust port, and quick air filter access from the side.
• Suspension
• Front Suspension48 mm KYB AOS Closed Cartridge fork, adjustable compression and rebound
• Rear SuspensionAluminum Body Sachs shock w/adjustable rebound and hi/low speed compression
• Brakes
• Front braking system260mm rotor
• Rear braking system240mm rotor
• Wheels & Tires
• Front Wheel Travel11.6”
• Rear Wheel Travel11.4”
• Front WheelRim: 21”
• Rear WheelRim: 18”
• Front TireMetzeler Six Days off-road tires
• Rear TireMetzeler Six Days off-road tires
• Dimensions
• Wheelbase58.7”
• Seat Height37”
• Ground Clearance12.6”
• HeightFootrest: 16.3”
• Capacities
• Fuel CapacityTank: 2.4 US gallons
• Weights
• Dry Weight237 lbs. (wet weight, no fuel)
• Electric
• ElectricalMulti-function Meter
• Warranty6 month Limited Warranty