2024 Yamaha YZ125 - UY13913-C

2024 Yamaha Motorsports YZ125

TWO?STROKE EVOLUTION
The new 2022 YZ125. More powerful, more capable, more advanced. Offering the ideal blend of performance, reliability and usability to develop the skills to win.

Features May Include:

• Two-Stroke Power
  A new 125cc reed-valve-inducted two-stroke engine produces better acceleration and improved mid-to high-rpm power.
• Lightweight Frame
  Race-proven, highly developed aluminum semi-double cradle frame is engineered to provide just the right amount of strength and flex for the perfect balance of stability and cornering performance.
• New High Performance Braking System
  The newly designed front and rear brake setup offer exceptional braking power and feel, while reducing unsprung weight.
• Rider-Friendly Chassis
  Lightweight finely tuned chassis means nimble handling, more control and less rider fatigue—the ideal platform for advancing skills and gaining confidence.
• Perfect for Aspiring Motocrossers
  A pure motocross machine, the light, nimble, competition-ready YZ125 is the perfect choice for riders stepping up from the 85cc class.
• Powerful New YZ125 Engine
  The new YZ125's two-stroke engine represents an increase in power and usability over the 2021 model. Nearly every functional part of the engine is new—from the cylinder body, cylinder head, piston, piston pin, connecting rod, crankcase and expansion chamber, to a revised cylinder port shape and updated cylinder port timing. It's a change that is immediately apparent at the first crack of the throttle and throughout the entire rpm range.
• New Air Intake Design
  Updated intake design allows for a straighter, more efficient draw of air into the intake tract.
• Yamaha Power Valve System
  Patented YPVS™ combines crisp, hard-hitting bottom-end acceleration with strong mid-range and top-end.
• Close-Ratio Transmission
  Revised six-speed, close-ratio transmission has wider transmission gear tooth width and new, optimized gear ratios for maximum performance.
• Digital Ignition
  Digital CDI system delivers precise spark and monitors engine speed to ensure optimal timing for faster, stronger response during hard acceleration.
• High-Capacity Radiator
  Large-capacity radiator features a 10-row core with blacked-out louvers to deliver an aggressive look and maximum cooling efficiency.
• Lightweight Frame
  Race-proven, highly developed aluminum semi-double cradle frame is engineered to provide just the right amount of strength and flex for the perfect balance of stability and cornering performance. Removable aluminum rear subframe is constructed of square-section tubing for reduced weight.
• New Brake System
  An updated lightweight braking system features larger front pistons, a more rigid caliper, a redesigned 270mm front rotor with a 30% increase in pad contact area and higher friction pad material, all combining to provide exceptional braking power and feel. The redesigned rear rotor maintains the same braking power while dropping outer diameter from 245mm to 240mm, further reducing unsprung weight with no compromise on performance.
• Industry-Leading KYB® Fork
  The Speed-Sensitive System 48mm inverted KYB® fork includes a leaf spring in the mid-speed valve for more precise damping and increased performance and comfort, while offering up 11.8 inches of travel.
• Advanced KYB® Shock
  Revised fully adjustable KYB® rear shock features reduced-friction Kashima Coat™ internals, separate adjusters for high- and low-speed compression damping, a full lock oil rebound system for increased comfort, and 12.4 inches of travel. It all adds up to fantastic rear wheel control and class-leading capability.
• Race-Ready Tires
  Premium Bridgestone® Battlecross X20 tires offer strong cornering grip and race-developed performance.
• Race-Ready Features
  Complete with an aluminum handlebar, two-position adjustable handlebar clamp, wide foot pegs, gripper seat, adjustable clutch lever with works-style cable adjuster and a new lightweight rear sprocket design, the YZ125 is competition-ready straight out of the crate.
• Powerful New YZ125 Engine
  A completely redesigned liquid-cooled 125cc two-stroke engine boasts increases to mid- and top-end power over the 2021 model.
• New Brake System
  To match increased engine performance, an updated lightweight braking system features larger front pistons, a more rigid caliper, a redesigned 270mm front rotor with a 30% increase in pad contact area and higher friction pad material, all combining to provide exceptional braking power and feel. The redesigned rear rotor maintains the same braking power while dropping outer diameter from 245mm to 240mm, further reducing unsprung weight with no compromise on performance.
• Improved Rider Ergonomics
  A new flatter seat and more narrow fuel tank design, along with smoothly integrated body panels and slimmer shroud width combine to enable greater freedom of movement forward and back, allowing the rider to easily shift body weight for increased control and confidence.
• Revised Suspension Damping
  Taking the YZ125's class-defining suspension and handling characteristics to a new level, front and rear suspension has been revised to further improve bump absorption and cornering performance. KYB® inverted front fork now includes a leaf spring in the mid-speed valve for increased performance and comfort.
• Improved Fueling
  New high-precision Hitachi Astemo® Keihin PWK38S carburetor features a power jet, throttle position sensor and 3D-map-controlled CDI unit for precise ignition timing. The result is clean, crisp throttle response, superior rideability and excellent over-rev character.
• New Air Intake Design
  Updated intake design allows for a straighter, more efficient draw of air into the intake tract.
• New, Modern YZ Styling
  Slimmer, more aggressive bodywork including new front and rear fender design, slimmer body panels and new radiator shrouds all integrate with a bold new graphics scheme to highlight the YZ's unmatched racing pedigree. Premium Yamaha Blue and dark blue graphics are now embedded to provide excellent durability and scratch resistance.