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Model Type
Cruiser
Model Type
Off-Road
MSRP
$12,390
MSRP
$7,399
Warranty
12
Warranty
1
Insurance
Insurance
Finance
Finance
Generic Type (Primary)
Cruiser
Generic Type (Primary)
Off-Road
Manufacturer Country
Japan
Manufacturer Country
Japan
Manufacturer Recommend Minimum Age
16
Manufacturer Recommend Minimum Age
16
Parent Company
Yamaha
Parent Company
Yamaha
Display Name
Road Star
Display Name
YZ 450F
Year
2009
Year
2009
Make
Yamaha
Make
Yamaha
Engine Type
V Twin
Engine Type
Single-Cylinder
Cylinders
2
Cylinders
1
Engine Stroke
4-Stroke
Engine Stroke
4-Stroke
Cooling
Air
Cooling
Liquid
Valves
8
Valves
5
Valves Per Cylinder
4
Valves Per Cylinder
5
Valve Configuration
OHV - Pushrod
Valve Configuration
DOHC
Bore (mm/in)
97 / 3.82
Bore (mm/in)
95 / 3.74
Stroke (mm/in)
113 / 4.45
Stroke (mm/in)
63.4 / 2.5
Displacement (cc/ci)
1670 / 102
Displacement (cc/ci)
449 / 27.4
Compression Ratio
8.3:1
Compression Ratio
12.3:1
Starter
Electric
Starter
Kick
Fuel Requirements
Regular
Fuel Requirements
Regular
US Miles Per Gallon (Combined)
36
US Miles Per Gallon (Combined)
-
Fuel Type
Gas
Fuel Type
Gas
Fuel Injector
Yes
Fuel Injector
No
Carburetor
No
Carburetor
Yes
Carburetion Type
Fuel Injected
Carburetion Type
Carburetor
Carburetion Brand
-
Carburetion Brand
Keihin
Number Of Carburetors
-
Number Of Carburetors
1
Carburetor Size (mm)
-
Carburetor Size (mm)
39
Transmission Type
Manual
Transmission Type
Manual
Number Of Speeds
5
Number Of Speeds
5
Overdrive
Yes
Overdrive
Yes
Primary Drive (Rear Wheel)
Belt
Primary Drive (Rear Wheel)
Chain
Gear Ratio (1/2/3/4/5)
2.375 / 1.579 / 1.16 / 0.906 / 0.75
Gear Ratio (1/2/3/4/5)
1.93 / 1.53 / 1.28 / 1.09 / 0.95
Reverse
No
Reverse
No
Heel Toe Shifter
Standard
Heel Toe Shifter
-
Wheels Composition
Aluminum
Wheels Composition
Aluminum
Tube / Tubeless
Tubeless
Tube / Tubeless
Tubed
Front Wheel Width (in)
3
Front Wheel Width (in)
-
Rear Wheel Width (in)
3.5
Rear Wheel Width (in)
-
Tire Brand
Bridgestone(R)
Tire Brand
Dunlop(R)
Front Tire Width
130
Front Tire Width
80
Front Tire Aspect Ratio
90
Front Tire Aspect Ratio
100
Front Tire Speed Rating
H
Front Tire Speed Rating
51M
Front Wheel Diameter
16
Front Wheel Diameter
21
Rear Tire Width
150
Rear Tire Width
120
Rear Tire Aspect Ratio
80
Rear Tire Aspect Ratio
80
Rear Tire Speed Rating
H
Rear Tire Speed Rating
62M
Rear Wheel Diameter
16
Rear Wheel Diameter
19
Front Tire (Full Spec)
130/90 HR16
Front Tire (Full Spec)
Dunlop(R) 80/100 R21
Rear Tire (Full Spec)
150/80 HR16
Rear Tire (Full Spec)
Dunlop(R) 120/80 R19
Chromed
-
Chromed
Yes
Front Brake Type
Dual Hydraulic Disc
Front Brake Type
Hydraulic Disc
Front Brake Diameter (in/mm)
11.7 / 298
Front Brake Diameter (in/mm)
9.9 / 250
Rear Brake Type
Hydraulic Disc
Rear Brake Type
Hydraulic Disc
Rear Brake Diameter (in/mm)
12.6 / 320
Rear Brake Diameter (in/mm)
9.7 / 245
Front Suspension Type
Telescopic Fork
Front Suspension Type
Inverted Fork
Front Suspension Size (in/mm)
1.7 / 43
Front Suspension Size (in/mm)
1.9 / 48
Front Travel (in/mm)
5.5 / 140
Front Travel (in/mm)
11.8 / 299.7
Front Adjustable Fork Pre-Load
Yes
Front Adjustable Fork Pre-Load
Yes
Front Adjustable Rebound Damping
No
Front Adjustable Rebound Damping
Yes
Front Central Suspension Strut
No
Front Central Suspension Strut
No
Steering Damper
No
Steering Damper
No
Rear Suspension Type
Twin Sided Swing Arm
Rear Suspension Type
Twin Sided Swing Arm
Rear Travel (in/mm)
4.3 / 109
Rear Travel (in/mm)
12.3 / 312.4
Rear Adjustable Shock / Spring Pre-Load
Yes
Rear Adjustable Shock / Spring Pre-Load
Yes
Rear Adjustable Rebound Damping
No
Rear Adjustable Rebound Damping
Yes
Number Rear Shock Absorbers
1
Number Rear Shock Absorbers
1
Air Adjustable
No
Air Adjustable
No
Front Suspension Brand Name
-
Front Suspension Brand Name
Kabaya
Rear Suspension Brand Name
-
Rear Suspension Brand Name
Kabaya
Rear Suspension Material
-
Rear Suspension Material
Aluminum
Steering Control
Handlebar
Steering Control
Handlebar
Length (ft)
8.2
Length (ft)
7.2
Width (in/mm)
38.6 / 980
Width (in/mm)
32.5 / 825.5
Height (in/mm)
44.9 / 1140
Height (in/mm)
51.4 / 1305.6
Wheelbase (in/mm)
66.5 / 1689
Wheelbase (in/mm)
58.8 / 1493.5
Turning Radius (ft)
10.5
Turning Radius (ft)
-
Ground Clearance (in/mm)
5.7 / 145
Ground Clearance (in/mm)
14.7 / 373.4
Length (ft/ft)
8
Length (ft/ft)
7
Length (ft/in)
2.4
Length (ft/in)
2.4
Dry Weight (lbs/kg)
694 / 314.8
Dry Weight (lbs/kg)
-
Wet Weight (lbs/kg)
743 / 337
Wet Weight (lbs/kg)
238 / 108
Fuel Capacity (gal/l)
4.7 / 17.8
Fuel Capacity (gal/l)
1.8 / 6.8
Engine Displacement to Weight (cc)
2.41
Engine Displacement to Weight (cc)
1.89
Seat Type
Two-Piece
Seat Type
One-Piece
Adjustable
No
Adjustable
No
Seat Material
Vinyl
Seat Material
Vinyl
Seat Location
Driver and Passenger
Seat Location
Driver
Folding
No
Folding
No
Seat Height (in/mm)
27.9 / 708.7
Seat Height (in/mm)
38.9 / 988.1
Number Of Seats
2
Number Of Seats
1
Detachable Passenger Seat
Standard
Detachable Passenger Seat
-
Grab Rail or Strap
Standard
Grab Rail or Strap
-
Frame
Steel
Frame
Aluminum
Floor Board Location
Driver and Passenger
Floor Board Location
-
Hand Grips
Standard
Hand Grips
Standard
Chain Guard
No
Chain Guard
Yes
Drive Shaft Guard
No
Drive Shaft Guard
No
Fork Guards
Yes
Fork Guards
Yes
Belt Guard
Yes
Belt Guard
No
Hand Guards
No
Hand Guards
No
Brush Guard
No
Brush Guard
No
Exhaust Guard
No
Exhaust Guard
No
Light Guard
No
Light Guard
No
Radiator Cover
No
Radiator Cover
-
Front Fender
Standard
Front Fender
Standard
Rear Fender
Standard
Rear Fender
Standard
Top Crown
Standard
Top Crown
Standard
Stand Type
Kick
Stand Type
Kick
Handlebars
Standard
Handlebars
Standard
License Plate
Standard
License Plate
-
Body Material
-
Body Material
Plastic
Foot Peg Location
-
Foot Peg Location
Driver
Adjustable
-
Adjustable
No
Chassis Protectors
-
Chassis Protectors
Yes
Engine Case Guard
-
Engine Case Guard
No
Saddle Bag Guard
-
Saddle Bag Guard
No
Tank Guard
-
Tank Guard
No
Fuel Tank Cover
-
Fuel Tank Cover
No
Handlebar Pads
-
Handlebar Pads
Standard
Digital Instrumentation
Standard
Digital Instrumentation
-
Clock
Standard
Clock
-
Trip Odometer
Standard
Trip Odometer
-
Speedometer
Standard
Speedometer
-
Fuel Level Warning Type
Gauge
Fuel Level Warning Type
-
Warranty (Months/Condition)
12 / Limited
Warranty (Months/Condition)
1 / Limited
Battery Warranty (Months)
0
Battery Warranty (Months)
0
Metallic
No
Metallic
No
Handlebar Lock
Standard
Handlebar Lock
-
Adjustable Handlebars
-
Adjustable Handlebars
Standard
Adjustable Levers
-
Adjustable Levers
Standard
Rearview Mirrors
Standard
Rearview Mirrors
-
Underseat Storage
Standard
Underseat Storage
-
Lockable Storage
Standard
Lockable Storage
-
Helmet Locks
Standard
Helmet Locks
-
Headlight Mounts
Standard
Headlight Mounts
-
Halogen Headlight (s)
Standard
Halogen Headlight (s)
-
Headlight (s)
Standard
Headlight (s)
-
Light Type
Halogen
Light Type
-
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