






2023 Beta Motorcycles 390 RR-S 4-Stroke - Base
$11,599
ENGINE | |
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Engine Type | Single cylinder, 4-valve, (Titanium intake and Steel exhaust) 4-stroke liquid cooled, cooling fan, electric start. (back-up kick start available as an option). |
Bore x Stroke | 88 mm x 63.4 mm |
Displacement | 385.6cc |
Compression Ratio | 12.48 to 1 |
Ignition | Dual map Kokusan. 200 watt output |
Spark Plug | NGK LKAR8A-9 |
Lubrication | Twin oil pumps with cartridge oil filter. Separate oil for engine and clutch |
Fuel System | 42mm Throttle Body w/ Dual Injectors |
Clutch | Wet multi-disc |
Valve Train | Titanium Intake & Exhaust |
Transmission | 6-speed |
Final Drive | O-ring chain |
CHASSIS | |
Frame | Molybdenum steel/double cradle w/quick air filter access |
Wheelbase | 58.7 |
Seat Height | 37 |
Ground Clearance | 12.6 |
Dry Weight | 241 lbs. (wet weight, no fuel) |
Electrical | Trail Tech Voyager GPS unit |
Fuel Tank Capacity | 2.4 US gallons |
Front Suspension | 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 |
Front Brake | 260mm rotor |
Rear Brake | 240mm rotor |
Front/Rear Rim | 21 inch (Front) 18 inch (Rear) |
Front/Rear Tire | DOT Maxxis Enduro |