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Year
2025
Year
2025
Parent Company
Yamaha
Parent Company
Ducati
Generic Type (Primary)
Off-Road
Generic Type (Primary)
Standard
Make
Yamaha
Make
Ducati
Display Name
YZ 125 Monster Energy Yamaha Racing Edition
Display Name
Monster 937+
Manufacturer Country
Japan
Manufacturer Country
Italy
Introduction Year
2022
Introduction Year
2021
Manufacturer Recommend Minimum Age
-
Manufacturer Recommend Minimum Age
16
Photo Gallery
-
Photo Gallery
Standard
Representative Image
-
Representative Image
No
Price
Standard
Price
Standard
MSRP
$7,299
MSRP
$13,195
Destination Charge
600
Destination Charge
-
Warranty (Months/Condition)
1 / Limited
Warranty (Months/Condition)
24 / Limited
Engine
Standard
Engine
Standard
Engine Type
Single-Cylinder
Engine Type
Longitudinal Twin
Cylinders
1
Cylinders
2
Engine Stroke
2-Stroke
Engine Stroke
4-Stroke
Cooling
Liquid
Cooling
Liquid
Valve Configuration
Reed Valve
Valve Configuration
DOHC
Compression Ratio
8.2
Compression Ratio
13.3:1
Starter
Kick
Starter
Electric
Fuel Type
Gas / Oil Premix
Fuel Type
Gas
Fuel Requirements
Regular
Fuel Requirements
Premium
Carburetion
Standard
Carburetion
Standard
Carburetion Brand
Keihin
Carburetion Brand
-
Fuel Injector
No
Fuel Injector
Yes
Carburetor
Yes
Carburetor
No
Number Of Carburetors
1
Number Of Carburetors
-
Carburetion Type
Carburetor
Carburetion Type
Fuel Injected
Bore (mm/in)
54 / 2.13
Bore (mm/in)
94 / 3.7
Stroke (in/mm)
2.15 / 54.5
Stroke (in/mm)
2.66 / 67.5
Displacement (cc/ci)
125 / 7.6
Displacement (cc/ci)
937 / 57
Compression Ratio (Secondary)
10.1:1
Compression Ratio (Secondary)
-
Carburetor Size (mm)
38
Carburetor Size (mm)
-
Engine Brand Name
-
Engine Brand Name
Testastretta 11
Horsepower RPM
-
Horsepower RPM
9250
Torque RPM
-
Torque RPM
6500
Valves
-
Valves
8
Valves Per Cylinder
-
Valves Per Cylinder
4
Horsepower (bhp)
-
Horsepower (bhp)
111
Torque (Nm)
-
Torque (Nm)
93
Fuel Injector Size (mm)
-
Fuel Injector Size (mm)
53
Transmission
Standard
Transmission
Standard
Transmission Type
Manual
Transmission Type
Manual
Number Of Speeds
6
Number Of Speeds
6
Overdrive
No
Overdrive
Yes
Reverse
No
Reverse
No
Primary Drive (Rear Wheel)
Chain
Primary Drive (Rear Wheel)
Chain
Final Drive Ratio
-
Final Drive Ratio
2.87
Dimensions
Standard
Dimensions
Standard
Weight
Standard
Weight
Standard
Capacities
Standard
Capacities
Standard
Performance
Standard
Performance
Standard
Length (in/mm)
84.1 / 2136.1
Length (in/mm)
-
Width (in/mm)
32.5 / 825.5
Width (in/mm)
-
Height (in/mm)
51 / 1295.4
Height (in/mm)
-
Wheelbase (in/mm)
56.9 / 1445.3
Wheelbase (in/mm)
58 / 1474
Ground Clearance (in/mm)
14.4 / 365.8
Ground Clearance (in/mm)
-
Wet Weight (lbs/kg)
209 / 94.8
Wet Weight (lbs/kg)
414 / 188
Fuel Capacity (gal/l)
1.8 / 6.8
Fuel Capacity (gal/l)
3.7 / 14
Engine Displacement to Weight (cc)
0.6
Engine Displacement to Weight (cc)
2.56
Dry Weight (lbs/kg)
-
Dry Weight (lbs/kg)
366 / 166
Construction
Standard
Construction
Standard
Frame
Aluminum
Frame
Aluminum
Body Material
Plastic
Body Material
-
Foot Pegs
Standard
Foot Pegs
Standard
Foot Peg Location
Driver
Foot Peg Location
Driver and Passenger
Adjustable
No
Adjustable
No
Hand Grips
Standard
Hand Grips
Standard
Handlebars
Standard
Handlebars
Standard
Handlebar Pads
Standard
Handlebar Pads
-
Exterior Guards
Standard
Exterior Guards
Standard
Belt Guard
No
Belt Guard
No
Brush Guard
No
Brush Guard
No
Chain Guard
Yes
Chain Guard
Yes
Chassis Protectors
Yes
Chassis Protectors
-
Drive Shaft Guard
No
Drive Shaft Guard
-
Engine Case Guard
No
Engine Case Guard
No
Exhaust Guard
No
Exhaust Guard
Yes
Fork Guards
Yes
Fork Guards
Yes
Hand Guards
No
Hand Guards
No
Light Guard
No
Light Guard
No
Saddle Bag Guard
No
Saddle Bag Guard
No
Tank Guard
No
Tank Guard
-
Exterior Covers
Standard
Exterior Covers
Standard
Fuel Tank Cover
No
Fuel Tank Cover
-
Front Fender
Standard
Front Fender
Standard
Rear Fender
Standard
Rear Fender
Standard
Heel Guards
-
Heel Guards
Yes
Radiator Cover
-
Radiator Cover
Yes
Side Cover
-
Side Cover
No
Stand
-
Stand
Standard
Stand Type
-
Stand Type
Kick
Lower Fairing
-
Lower Fairing
Optional
Steering Control
Handlebar
Steering Control
Handlebar
Front Suspension Brand Name
KYB
Front Suspension Brand Name
-
Front Suspension Type
Inverted Fork
Front Suspension Type
Inverted Fork
Front Adjustable Fork Pre-Load
Yes
Front Adjustable Fork Pre-Load
No
Front Adjustable Rebound Damping
Yes
Front Adjustable Rebound Damping
No
Front Central Suspension Strut
No
Front Central Suspension Strut
-
Steering Damper
No
Steering Damper
No
Rear Suspension Brand Name
KYB
Rear Suspension Brand Name
-
Rear Suspension Type
Twin Sided Swing Arm
Rear Suspension Type
Twin Sided Swing Arm
Rear Suspension Material
Aluminum
Rear Suspension Material
Aluminum
Rear Adjustable Shock / Spring Pre-Load
Yes
Rear Adjustable Shock / Spring Pre-Load
Yes
Rear Adjustable Rebound Damping
Yes
Rear Adjustable Rebound Damping
Yes
Number Rear Shock Absorbers
1
Number Rear Shock Absorbers
1
Air Adjustable
No
Air Adjustable
-
Front Suspension Size (in/mm)
1.9 / 48
Front Suspension Size (in/mm)
1.7 / 43
Front Travel (in/mm)
11.8 / 299.7
Front Travel (in/mm)
5.1 / 130
Rear Travel (in/mm)
12.4 / 315
Rear Travel (in/mm)
5.5 / 140
Wheels
Standard
Wheels
Standard
Wheels Composition
Aluminum
Wheels Composition
Aluminum
Chromed
Yes
Chromed
No
Tube / Tubeless
Tubed
Tube / Tubeless
Tubeless
Tires
Standard
Tires
Standard
Tire Brand
Bridgestone®
Tire Brand
Pirelli®
Front Tire Width
80
Front Tire Width
120
Front Tire Aspect Ratio
100
Front Tire Aspect Ratio
70
Front Wheel Diameter
21
Front Wheel Diameter
17
Rear Tire Width
100
Rear Tire Width
180
Rear Tire Aspect Ratio
90
Rear Tire Aspect Ratio
55
Rear Wheel Diameter
19
Rear Wheel Diameter
17
Front Tire (Full Spec)
Bridgestone® X20F 80/100 R21
Front Tire (Full Spec)
Pirelli® Diablo Rosso III 120/70 ZR17
Rear Tire (Full Spec)
Bridgestone® X20 100/90 R19
Rear Tire (Full Spec)
Pirelli® Diablo Rosso III 180/55 ZR17
Front Tire Speed Rating
-
Front Tire Speed Rating
Z
Rear Tire Speed Rating
-
Rear Tire Speed Rating
Z
Front Wheel Width (in)
-
Front Wheel Width (in)
3.5
Rear Wheel Width (in)
-
Rear Wheel Width (in)
5.5
Brakes
Standard
Brakes
Standard
Front Brake Type
Hydraulic Disc
Front Brake Type
Dual Hydraulic Disc
Rear Brake Type
Hydraulic Disc
Rear Brake Type
Hydraulic Disc
Front Brake Diameter (in/mm)
10.6 / 270
Front Brake Diameter (in/mm)
12.6 / 320
Rear Brake Diameter (in/mm)
9.4 / 240
Rear Brake Diameter (in/mm)
9.7 / 245
Brake Brand Name
-
Brake Brand Name
Brembo® Monobloc
Anti-Lock Brakes
-
Anti-Lock Brakes
Standard
Linked Brake System Front to Rear
-
Linked Brake System Front to Rear
Standard
Seat Type
One-Piece
Seat Type
Two-Piece
Seat Location
Driver
Seat Location
Driver and Passenger
Seat Material
Vinyl
Seat Material
Vinyl
Adjustable
No
Adjustable
Yes
Folding
No
Folding
No
Seat Specifications
Standard
Seat Specifications
Standard
Number Of Seats
1
Number Of Seats
2
Seat Height (in/mm)
38.6 / 980.4
Seat Height (in/mm)
32.3 / 820
Seat Tail Cover
-
Seat Tail Cover
Standard
Grab Rail or Strap
-
Grab Rail or Strap
Standard
Adjustable Handlebars
Standard
Adjustable Handlebars
-
Adjustable Levers
Standard
Adjustable Levers
Standard
Engine Immobilizer
-
Engine Immobilizer
Standard
Power Outlet
-
Power Outlet
Standard
Alarm System
-
Alarm System
Optional
Paint
Standard
Paint
Standard
Metallic
No
Metallic
-
Decal Kit
Optional
Decal Kit
-
Digital Instrumentation
-
Digital Instrumentation
Standard
Clock
-
Clock
Standard
Speedometer
-
Speedometer
Standard
Tachometer
-
Tachometer
Standard
Trip Odometer
-
Trip Odometer
Standard
Trip Computer
-
Trip Computer
Standard
Lap Timer
-
Lap Timer
Standard
Fuel Level Warning
-
Fuel Level Warning
Standard
Fuel Level Warning Type
-
Fuel Level Warning Type
Gauge
Temperature Warning
-
Temperature Warning
Standard
Temperature Warning Type
-
Temperature Warning Type
Gauge
Service Reminder
-
Service Reminder
Standard
Multi-Lingual Instrumentation
-
Multi-Lingual Instrumentation
Standard
Hard Side Cases
-
Hard Side Cases
Optional
Side Storage Mount
-
Side Storage Mount
Optional
Tail Bag
-
Tail Bag
Optional
Tank Bag
-
Tank Bag
Optional
Underseat Storage
-
Underseat Storage
Standard
Lockable Storage
-
Lockable Storage
Standard
Storage Cover
-
Storage Cover
Optional
Helmet Storage
-
Helmet Storage
Optional
Type
-
Type
LED
Headlight (s)
-
Headlight (s)
Standard
Rearview Mirrors
-
Rearview Mirrors
Standard
Windshield
-
Windshield
Standard
Tinted
-
Tinted
Yes
Height
-
Height
Low
Height Adjustable
-
Height Adjustable
No
Windshield Lowers
-
Windshield Lowers
No
Side Case Mount
-
Side Case Mount
Optional
Windshield Mounts
-
Windshield Mounts
Standard
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