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Beta390 RR’232023
SuzukiRM-Z450’232023
Beta 390 RR 2023
386CC
Suzuki DR-Z400S 2023
398CC
Suzuki RM-Z450 2023
449CC
Key numbers
Displacement
386 cc
398 cc
449 cc
Weight
278.9 lb
322 lb
247 lbWin
Seat height
37 in
36.8 in
37.8 in
Ground clearance
12.6 in
11.8 in
13 inWin
Front travel
11.8 in
11.3 in
12 inWin
Rear travel
11.6 in
11.6 in
12.4 inWin
Wheelbase
58.7 in
58.5 in
58.3 in
Fuel capacity
2.38 gal
2.6 galWin
1.66 gal
Engine
Displacement386cc398cc449cc
Stroke4-stroke4-stroke4-stroke
Fuel systemFuel injectionCarburetorFuel injection
Bore × stroke88 × 63.4 mm90 × 62.6 mm96 × 62.1 mm
Compression12.5:111.3:112.5:1
Torque23.6 ft-lb——
CoolingLiquidLiquidLiquid
ConfigurationSingle-cylinderSingle-cylinderSingle-cylinder
Valve trainDOHCDOHCDOHC
Valves4——
Oil chamberDualSingleSingle
Engine oil0.75 L1.8 L1.1 L
Oil type10W-5010W-4010W-40
Coolant1.3 L1.25 L1.1 L
Clutch
TypeWet multiplateWet multiplateWet multiplate
ActuationHydraulicCableCable
AssistManualManualManual
SpringDiaphragm——
Drivetrain
StartingElectricElectricKick
Transmission6-speed5-speed5-speed
Chain size—520520
Chain links—112114
Front sprocket13T15T13T
Rear sprocket49T44T50T
Dimensions
Wet weight278.9 lb322 lb247 lb
Seat height37″36.8″37.8″
Ground clearance12.6″11.8″13″
Wheelbase58.7″58.5″58.3″
Width32.2″34.4″32.9″
Height50″48.4″49.6″
Fuel capacity2.38 gal2.6 gal1.66 gal
Frame & steering
Rake—27.2°27.8°
Trail—4.21″4.72″
Steering angle—45°—
Suspension
Front48 mm open-cartridge hydraulic upside-down forkTelescopic fork, coil spring, oil dampedInverted telescopic fork, coil spring, oil damped
Front travel11.8″11.3″12″
RearSingle shock absorber with progressive linkageLink-type suspension, coil spring, oil dampedLink-type shock, coil spring, oil damped
Rear travel11.6″11.6″12.4″
Wheels & tires
Front wheel21″21″21″
Rear wheel18″18″19″
Front tire90/90-2180/100-21 M/C 51P, tube type80/100-21 51M, tube type
Rear tire140/80-18120/90-18 M/C 65P, tube type110/90-19 62M, tube type
Brakes
Front disc260 mm——
Rear disc240 mm——
Stock features
Map switch——No
Skid plateYes—Yes
Radiator fanNo—No
Street legalYesYesNo
Battery / electrical
BatteryYesYesNo
ChemistryLithiumLead acid—
Voltage12V12V—
Capacity—6 Ah—