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Model Type
Scooter
Model Type
Chopper
MSRP
$1,749
MSRP
$29,900
Warranty
24
Warranty
24
Insurance
Insurance
Finance
Finance
Generic Type (Primary)
Scooter
Generic Type (Primary)
Chopper
Manufacturer Country
Taiwan
Manufacturer Country
USA
Manufacturer Recommend Minimum Age
16
Manufacturer Recommend Minimum Age
16
Parent Company
Peirspeed
Parent Company
Big Dog
Display Name
Key West 49cc
Display Name
K-9(TM)
Year
2011
Year
2011
Make
Peirspeed
Make
Big Dog
Introduction Year
-
Introduction Year
2006
Engine Type
Single-Cylinder
Engine Type
V Twin
Cylinders
1
Cylinders
2
Engine Stroke
2-Stroke
Engine Stroke
4-Stroke
Horsepower (bhp/kW)
4.9 / 3.7
Horsepower (bhp/kW)
-
Horsepower RPM
7500
Horsepower RPM
-
Cooling
Air
Cooling
Air
Valve Configuration
Reed Valve
Valve Configuration
OHV - Pushrod
Bore (mm/in)
41 / 1.61
Bore (mm/in)
104.8 / 4.13
Stroke (mm/in)
37.4 / 1.47
Stroke (mm/in)
111.1 / 4.38
Displacement (cc/ci)
49.3 / 3
Displacement (cc/ci)
1917.3 / 117
Starter
Electric / Kick
Starter
Electric
Fuel Requirements
Regular
Fuel Requirements
-
US Miles Per Gallon (Combined)
100
US Miles Per Gallon (Combined)
-
CAN Liters Per Kilometer (Combined)
3.9
CAN Liters Per Kilometer (Combined)
-
Fuel Type
Gas / Oil Injected
Fuel Type
Gas
Carburetion Brand
Mikuni
Carburetion Brand
S & S Super G
Fuel Injector
No
Fuel Injector
No
Carburetor
Yes
Carburetor
Yes
Number Of Carburetors
1
Number Of Carburetors
1
Carburetor Size (mm)
13
Carburetor Size (mm)
-
Carburetion Type
Carburetor
Carburetion Type
Carburetor
Speed Governor
No
Speed Governor
-
Engine Brand Name
-
Engine Brand Name
S&S
Valves
-
Valves
4
Valves Per Cylinder
-
Valves Per Cylinder
2
Compression Ratio
-
Compression Ratio
9.6:1
Transmission Type
Continuously Variable (CVT)
Transmission Type
Manual
Primary Drive (Rear Wheel)
Chain
Primary Drive (Rear Wheel)
Belt
Primary Drive (Engine / Transmission)
Belt
Primary Drive (Engine / Transmission)
Chain
Reverse
No
Reverse
-
Number Of Speeds
-
Number Of Speeds
6
Overdrive
-
Overdrive
Yes
Transmission Brand
-
Transmission Brand
Baker
Heel Toe Shifter
-
Heel Toe Shifter
Standard
Wheels Composition
Steel
Wheels Composition
Aluminum
Chromed
No
Chromed
Yes
Front Tire Width
120
Front Tire Width
-
Front Tire Aspect Ratio
90
Front Tire Aspect Ratio
90
Front Wheel Diameter
10
Front Wheel Diameter
21
Rear Tire Width
120
Rear Tire Width
300
Rear Tire Aspect Ratio
90
Rear Tire Aspect Ratio
35
Rear Wheel Diameter
10
Rear Wheel Diameter
18
Front Tire (Full Spec)
120/90-10
Front Tire (Full Spec)
MH90-21 56V
Rear Tire (Full Spec)
120/90-10
Rear Tire (Full Spec)
300/35 R18 87V
Tube / Tubeless
-
Tube / Tubeless
Tubeless
Front Wheel Width (in)
-
Front Wheel Width (in)
2.2
Rear Wheel Width (in)
-
Rear Wheel Width (in)
10.5
Front Tire Speed Rating
-
Front Tire Speed Rating
56V
Rear Tire Speed Rating
-
Rear Tire Speed Rating
87V
Front Brake Type
Hydraulic Disc
Front Brake Type
Hydraulic Disc
Front Brake Diameter (in/mm)
7.5 / 190
Front Brake Diameter (in/mm)
-
Rear Brake Type
Drum
Rear Brake Type
Hydraulic Disc
Front Suspension Type
Inverted Fork
Front Suspension Type
Telescopic Fork
Front Adjustable Fork Pre-Load
No
Front Adjustable Fork Pre-Load
No
Front Adjustable Rebound Damping
No
Front Adjustable Rebound Damping
No
Front Central Suspension Strut
No
Front Central Suspension Strut
No
Steering Damper
No
Steering Damper
No
Rear Suspension Type
Single Sided Swing Arm
Rear Suspension Type
Twin Sided Swing Arm
Rear Adjustable Rebound Damping
No
Rear Adjustable Rebound Damping
No
Number Rear Shock Absorbers
1
Number Rear Shock Absorbers
2
Rear Suspension Material
Steel
Rear Suspension Material
-
Air Adjustable
No
Air Adjustable
-
Front Suspension Size (in/mm)
-
Front Suspension Size (in/mm)
1.6 / 41
Rear Adjustable Shock / Spring Pre-Load
-
Rear Adjustable Shock / Spring Pre-Load
No
Steering Control
Handlebar
Steering Control
Handlebar
Length (ft)
5.56
Length (ft)
9
Width (in/mm)
25.5 / 647.7
Width (in/mm)
-
Height (in/mm)
42.3 / 1074.4
Height (in/mm)
-
Length (ft/ft)
5
Length (ft/ft)
9
Length (ft/in)
6.7
Length (ft/in)
0
Dry Weight (lbs/kg)
178.5 / 81
Dry Weight (lbs/kg)
701 / 318
Fuel Capacity (gal/l)
1.3 / 4.9
Fuel Capacity (gal/l)
4.4 / 16.6
Engine Displacement to Weight (cc)
0.28
Engine Displacement to Weight (cc)
2.74
Wheelbase (in/mm)
-
Wheelbase (in/mm)
82 / 2082.8
Ground Clearance (in/mm)
-
Ground Clearance (in/mm)
4 / 101.6
GVWR (lbs/kgs)
-
GVWR (lbs/kgs)
1130 / 512.6
Fuel Capacity Reserve (gal/l)
-
Fuel Capacity Reserve (gal/l)
0.4 / 1.5
Seat Type
One-Piece
Seat Type
One-Piece
Adjustable
No
Adjustable
No
Seat Material
Vinyl
Seat Material
Leather
Seat Location
Driver and Passenger
Seat Location
Driver
Folding
No
Folding
No
Seat Height (in/mm)
31 / 787.4
Seat Height (in/mm)
24.25 / 616
Number Of Seats
2
Number Of Seats
1
Grab Rail or Strap
Standard
Grab Rail or Strap
-
Frame
Steel
Frame
Steel
Body Material
Plastic
Body Material
-
Floor Board Location
Driver and Passenger
Floor Board Location
-
Hand Grips
Standard
Hand Grips
Standard
Foot Peg Location
Passenger
Foot Peg Location
Driver
Adjustable
No
Adjustable
No
Chassis Protectors
No
Chassis Protectors
No
Drive Shaft Guard
No
Drive Shaft Guard
No
Engine Case Guard
No
Engine Case Guard
No
Fork Guards
Yes
Fork Guards
No
Saddle Bag Guard
No
Saddle Bag Guard
No
Tank Guard
No
Tank Guard
No
Hand Guards
No
Hand Guards
No
Brush Guard
No
Brush Guard
No
Heel Guards
No
Heel Guards
No
Exhaust Guard
Yes
Exhaust Guard
No
Light Guard
No
Light Guard
No
Radiator Cover
No
Radiator Cover
No
Side Cover
No
Side Cover
-
Front Fender
Standard
Front Fender
Standard
Rear Fender
Standard
Rear Fender
Standard
Stand Type
Center / Kick
Stand Type
Kick
Lower Fairing
Standard
Lower Fairing
-
Handlebars
Standard
Handlebars
Standard
License Plate
Standard
License Plate
Standard
Chain Guard
-
Chain Guard
No
Belt Guard
-
Belt Guard
Yes
Fuel Tank Cover
-
Fuel Tank Cover
No
Top Crown
-
Top Crown
Standard
Speedometer
Standard
Speedometer
Standard
Fuel Level Warning Type
Gauge
Fuel Level Warning Type
-
Digital Instrumentation
-
Digital Instrumentation
Standard
Tachometer
-
Tachometer
Standard
Trip Odometer
-
Trip Odometer
Standard
Warranty (Months/Condition)
24 / Limited
Warranty (Months/Condition)
24 / Limited
Battery Warranty (Months)
0
Battery Warranty (Months)
0
Paint
Standard
Paint
Standard
Handlebar Lock
Standard
Handlebar Lock
Standard
Folding
Yes
Folding
Yes
Underseat Storage
Standard
Underseat Storage
-
Lockable Storage
Standard
Lockable Storage
-
Rear Rack
Standard
Rear Rack
-
Helmet Storage
Standard
Helmet Storage
-
Headlight Mounts
Standard
Headlight Mounts
Standard
Halogen Headlight (s)
Standard
Halogen Headlight (s)
Standard
Headlight (s)
Standard
Headlight (s)
Standard
Light Type
Halogen
Light Type
Halogen
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