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Year
2024
Year
2024
Parent Company
Yamaha
Parent Company
Yamaha
Generic Type (Primary)
Off-Road
Generic Type (Primary)
Standard
Make
Yamaha
Make
Yamaha
Display Name
YZ 125X
Display Name
Bolt R-Spec
Manufacturer Country
Japan
Manufacturer Country
Japan
Introduction Year
2020
Introduction Year
2014
Manufacturer Recommend Minimum Age
-
Manufacturer Recommend Minimum Age
16
Price
Standard
Price
Standard
MSRP
$7,199
MSRP
$8,899
Destination Charge
550
Destination Charge
575
Warranty (Months/Condition)
1 / Limited
Warranty (Months/Condition)
12 / Limited
Engine
Standard
Engine
Standard
Engine Type
Single-Cylinder
Engine Type
V Twin
Cylinders
1
Cylinders
2
Engine Stroke
2-Stroke
Engine Stroke
4-Stroke
Cooling
Liquid
Cooling
Air
Valve Configuration
Reed Valve
Valve Configuration
SOHC
Compression Ratio
7.8
Compression Ratio
9.0:1
Starter
Kick
Starter
Electric
Fuel Type
Gas / Oil Premix
Fuel Type
Gas
Fuel Requirements
Regular
Fuel Requirements
Regular
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)
85 / 3.35
Stroke (in/mm)
2.15 / 54.5
Stroke (in/mm)
3.27 / 83
Displacement (cc/ci)
125 / 7.6
Displacement (cc/ci)
942 / 58
Compression Ratio (Secondary)
10.2:1
Compression Ratio (Secondary)
-
Carburetor Size (mm)
38
Carburetor Size (mm)
-
Valves
-
Valves
8
Valves Per Cylinder
-
Valves Per Cylinder
4
US Miles Per Gallon (Combined)
-
US Miles Per Gallon (Combined)
51
Transmission
Standard
Transmission
Standard
Transmission Type
Manual
Transmission Type
Manual
Number Of Speeds
6
Number Of Speeds
5
Overdrive
No
Overdrive
-
Reverse
No
Reverse
No
Primary Drive (Rear Wheel)
Chain
Primary Drive (Rear Wheel)
Belt
Dimensions
Standard
Dimensions
Standard
Weight
Standard
Weight
Standard
Capacities
Standard
Capacities
Standard
Performance
Standard
Performance
Standard
Length (in/mm)
84.8 / 2153.9
Length (in/mm)
90.2 / 2291.1
Width (in/mm)
32.5 / 825.5
Width (in/mm)
37.2 / 944.9
Height (in/mm)
50.8 / 1290.3
Height (in/mm)
44.1 / 1120.1
Wheelbase (in/mm)
57.3 / 1455.4
Wheelbase (in/mm)
61.8 / 1569.7
Ground Clearance (in/mm)
14 / 355.6
Ground Clearance (in/mm)
5.1 / 129.5
Wet Weight (lbs/kg)
212 / 96.2
Wet Weight (lbs/kg)
542 / 245.9
Fuel Capacity (gal/l)
1.8 / 6.8
Fuel Capacity (gal/l)
3.4 / 12.9
Engine Displacement to Weight (cc)
0.6
Engine Displacement to Weight (cc)
1.74
Construction
Standard
Construction
Standard
Frame
Aluminum
Frame
Steel
Body Material
Plastic
Body Material
-
Foot Pegs
Standard
Foot Pegs
Standard
Foot Peg Location
Driver
Foot Peg Location
Driver
Adjustable
No
Adjustable
-
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
Yes
Brush Guard
No
Brush Guard
No
Chain Guard
Yes
Chain Guard
No
Chassis Protectors
Yes
Chassis Protectors
-
Drive Shaft Guard
No
Drive Shaft Guard
No
Engine Case Guard
No
Engine Case Guard
-
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
No
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
Stand
Standard
Stand
Standard
Stand Type
Kick
Stand Type
Kick
Radiator Cover
-
Radiator Cover
No
Skid Plate
-
Skid Plate
Optional
Steering Control
Handlebar
Steering Control
Handlebar
Front Suspension Brand Name
KYB
Front Suspension Brand Name
-
Front Suspension Type
Inverted Fork
Front Suspension Type
Telescopic 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
No
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
-
Rear Adjustable Shock / Spring Pre-Load
Yes
Rear Adjustable Shock / Spring Pre-Load
No
Rear Adjustable Rebound Damping
Yes
Rear Adjustable Rebound Damping
No
Number Rear Shock Absorbers
1
Number Rear Shock Absorbers
2
Air Adjustable
No
Air Adjustable
No
Front Suspension Size (in/mm)
1.9 / 48
Front Suspension Size (in/mm)
1.6 / 41
Front Travel (in/mm)
11.8 / 299.7
Front Travel (in/mm)
4.7 / 119.4
Rear Travel (in/mm)
12.4 / 315
Rear Travel (in/mm)
2.8 / 71.1
Wheels
Standard
Wheels
Standard
Wheels Composition
Aluminum
Wheels Composition
Aluminum
Chromed
Yes
Chromed
-
Tube / Tubeless
Tubed
Tube / Tubeless
Tubeless
Tires
Standard
Tires
Standard
Tire Brand
Dunlop®
Tire Brand
Bridgestone®
Front Tire Width
80
Front Tire Width
100
Front Tire Aspect Ratio
100
Front Tire Aspect Ratio
90
Front Wheel Diameter
21
Front Wheel Diameter
19
Rear Tire Width
110
Rear Tire Width
150
Rear Tire Aspect Ratio
100
Rear Tire Aspect Ratio
80
Rear Wheel Diameter
18
Rear Wheel Diameter
16
Front Tire (Full Spec)
Dunlop® Geomax MX33F 80/100 - 21
Front Tire (Full Spec)
100/90 R19 57H Bridgestone® EXEDRA G721 F
Rear Tire (Full Spec)
Dunlop® Geomax MX33 110/100 - 18
Rear Tire (Full Spec)
150/80 R16 71H Bridgestone® EXEDRA G722 R
Front Tire Speed Rating
-
Front Tire Speed Rating
H
Rear Tire Speed Rating
-
Rear Tire Speed Rating
H
Brakes
Standard
Brakes
Standard
Front Brake Type
Hydraulic Disc
Front Brake Type
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)
11.7 / 298
Rear Brake Diameter (in/mm)
9.4 / 240
Rear Brake Diameter (in/mm)
11.7 / 298
Seat Type
One-Piece
Seat Type
One-Piece
Seat Location
Driver
Seat Location
Driver
Seat Material
Vinyl
Seat Material
Vinyl
Adjustable
No
Adjustable
No
Folding
No
Folding
No
Seat Specifications
Standard
Seat Specifications
Standard
Number Of Seats
1
Number Of Seats
1
Seat Height (in/mm)
38.2 / 970.3
Seat Height (in/mm)
27.2 / 690.9
Seat Backrest
-
Seat Backrest
Optional
Adjustable Handlebars
Standard
Adjustable Handlebars
-
Adjustable Levers
Standard
Adjustable Levers
-
Heated Hand Grips
-
Heated Hand Grips
Optional
Paint
Standard
Paint
Standard
Metallic
No
Metallic
No
Digital Instrumentation
-
Digital Instrumentation
Standard
Speedometer
-
Speedometer
Standard
Trip Odometer
-
Trip Odometer
Standard
Fuel Level Warning
-
Fuel Level Warning
Standard
Side Storage Mount
-
Side Storage Mount
Optional
Rear Rack
-
Rear Rack
Optional
Saddle Bag (s)
-
Saddle Bag (s)
Optional
Type
-
Type
Halogen
Headlight (s)
-
Headlight (s)
Standard
Halogen Headlight (s)
-
Halogen Headlight (s)
Standard
Rearview Mirrors
-
Rearview Mirrors
Standard
Windshield
-
Windshield
Optional
Saddle Bag Mounts
-
Saddle Bag Mounts
Optional
Windshield Mounts
-
Windshield Mounts
Optional