| General |
|
Year
|
2024
|
2024
|
|
Manufacturer
|
Beta
|
Beta
|
|
Model Name
|
390 RR 4-Stroke
|
390 RR 4-Stroke
|
|
Trim Name
|
Base
|
Base
|
|
Generic Type (Primary)
|
Off-Road
|
Off-Road
|
| Engine |
|
Engine Type
|
Single cylinder, 4 –stroke, liquid cooled, 4-valve (Titanium intake and exhaust), electric start. (back up kick starter as an option)
|
Single cylinder, 4 –stroke, liquid cooled, 4-valve (Titanium intake and exhaust), electric start. (back up kick starter as an option)
|
|
Displacement
|
385.6cc
|
385.6cc
|
|
Bore
|
88mm
|
88mm
|
|
Stroke
|
63.4mm
|
63.4mm
|
|
Compression Ratio
|
12.48:1
|
12.48:1
|
|
Lubrication
|
Twin Oil Pumps w/Cartridge Filter & Separate Compartments For Engine & Transmission
|
Twin Oil Pumps w/Cartridge Filter & Separate Compartments For Engine & Transmission
|
|
Ignition
|
Dual-Map Kokusan 200w output
|
Dual-Map Kokusan 200w output
|
|
Spark Plug
|
NGK LKAR8A-9
|
NGK LKAR8A-9
|
|
Traction Control System
|
On-Demand w/ push of a button
|
On-Demand w/ push of a button
|
| Performance |
|
Fuel System
|
42mm Throttle Body w/Dual Injectors
|
42mm Throttle Body w/Dual Injectors
|
| Drivetrain |
|
Clutch
|
Wet Diaphragm-style
|
Wet Diaphragm-style
|
|
Transmission
|
6 Speed
|
6 Speed
|
|
Final Drive
|
O-ring chain
|
O-ring chain
|
|
Gears
|
Final Gearing: 13T Front/48T Rear
|
Final Gearing: 13T Front/48T Rear
|
| Chassis |
|
Frame Type
|
Molybdenum steel, double cradle w/ quick air filter access
|
Molybdenum steel, double cradle w/ quick air filter access
|
|
Exhaust
|
Titanium Intake & Exhaust
|
Titanium Intake & Exhaust
|
| Suspension |
|
Front Suspension
|
48 mm Sachs Open Cartridge with compression, rebound & spring preload adjustment
|
48 mm Sachs Open Cartridge with compression, rebound & spring preload adjustment
|
|
Rear Suspension
|
Aluminum Body Sachs shock w/adjustable rebound and hi/low speed compression
|
Aluminum Body Sachs shock w/adjustable rebound and hi/low speed compression
|
| Brakes |
|
Front braking system
|
260 mm floating rotor
|
260 mm floating rotor
|
|
Rear braking system
|
240 mm rotor
|
240 mm rotor
|
| Wheels & Tires |
|
Front Wheel Travel
|
11.6"
|
11.6"
|
|
Rear Wheel Travel
|
11.4"
|
11.4"
|
|
Front Tire
|
Maxxis Enduro
|
Maxxis Enduro
|
|
Rear Tire
|
Maxxis Enduro
|
Maxxis Enduro
|
|
Front Wheel
|
Rim: 21"
|
Rim: 21"
|
|
Rear Wheel
|
Rim: 18"
|
Rim: 18"
|
| Dimensions |
|
Wheelbase
|
58.7"
|
58.7"
|
|
Seat Height
|
37"
|
37"
|
|
Ground Clearance
|
12.6"
|
12.6"
|
|
Height
|
Footrest: 16.3"
|
Footrest: 16.3"
|
| Capacities |
|
Fuel Capacity
|
Tank: 2.4 US Gallons
|
Tank: 2.4 US Gallons
|
|
Oil capacity
|
Tank: 650 cc
|
Tank: 650 cc
|
| Weights |
|
Dry Weight
|
237 lbs (wet weight, no fuel)
|
237 lbs (wet weight, no fuel)
|
| Warranty |
|
Warranty
|
6 month Limited Warranty
|
6 month Limited Warranty
|
|
|
|
|
