Yamaha YZ125 2027

Now available at Cycle Springs Powersports in Clearwater, FL: the 2027 Yamaha YZ125—a lightweight 125cc 2-stroke motocross bike powered by a 125cc liquid-cooled reed-valve-inducted engine, built with YPVS power delivery, a close-ratio 6-speed transmission, KYB suspension, and race-ready Yamaha YZ performance.

Key Highlights

• Engine & Performance: 125cc liquid-cooled 2-stroke engine with reed-valve induction for crisp, responsive motocross power
• Power Delivery: Yamaha Power Valve System helps deliver strong bottom-end torque with free-revving mid-range and top-end performance
• Fuel Delivery: Hitachi Astemo Keihin PWK38S carburetor for clean throttle response and rideability
• Transmission: Constant-mesh 6-speed transmission with multiplate wet clutch and chain final drive
• Chassis: Race-proven aluminum semi-double-cradle frame with removable aluminum rear subframe
• Suspension: Fully adjustable KYB Speed-Sensitive System inverted front fork and fully adjustable KYB rear shock
• Brakes: 270 mm front hydraulic disc and 240 mm rear hydraulic disc for strong track-focused stopping power
• Wheels & Tires: 21' front and 19' rear wheels with Bridgestone Battlecross X20 tires
• Race-Ready Details: Adjustable aluminum handlebar, wide foot pegs, gripper seat, works-style clutch cable adjuster, and lightweight rear sprocket design
• Competition Design: Lightweight 212 lb wet weight, high ground clearance, and Yamaha BLU CRU motocross capability

Specifications

• Displacement: 125 cc
• Engine Type: Liquid-cooled 2-stroke; reed-valve inducted
• Bore x Stroke: 54.0 mm × 54.5 mm
• Compression Ratio: 8.2~10.1:1
• Fuel Delivery: Hitachi Astemo Keihin PWK38S carburetor
• Transmission: Constant-mesh 6-speed; multiplate wet clutch
• Final Drive: Chain
• Fuel Capacity: 1.8 gal
• Overall (L × W × H): 84.1' × 32.5' × 51.0'
• Seat Height: 38.6'
• Wheelbase: 56.9'
• Ground Clearance: 14.4'
• Wet Weight: 212 lb
• Front Suspension: KYB Speed-Sensitive System inverted fork; fully adjustable; 11.8' travel
• Rear Suspension: KYB single shock; fully adjustable; 12.4' travel
• Front/Rear Tires: 80/100-21 Bridgestone Battlecross X20F / 100/90-19 Bridgestone Battlecross X20
• Factory Warranty: 30-day limited factory warranty

With lightweight 2-stroke power, premium KYB suspension, race-proven aluminum chassis, and Yamaha’s championship-focused YZ engineering, the YZ125 is built for riders developing speed, skill, and confidence on the motocross track. Contact Cycle Springs Powersports in Clearwater, FL for pricing and current availability.