Yamaha Motors today unveiled an all-new YZ65 youth motocross bike to complete the company’s 2018 model lineup. Featuring an all-new engine, chassis, suspension, bodywork and more, the YZ65 is designed to provide young riders with top-notch performance and reliability while racing towards the victorYZone.
“With the addition of this exciting new youth motocross bike, aspiring young riders who are beginning to experience the thrill of competition can do so as members of the bLU cRU,” said Yamaha Motorcycle Product Line Manager, Derek Brooks. “This all-new bike builds on Yamaha’s renowned history of performance and durability, which translates into great value for parents and endless moto fun for their kids.”
Yamaha has stepped their game up by opening up their product range with a YZ65, giving them a more complete motocross lineup.

Top Features
•All-New 65cc Motocrosser
Built from the ground up for 2018, the all-new YZ65 is ready to tackle the track with winning performance right out of the gate. And, of course, the all-new YZ65 features Yamaha’s renowned competition off-road quality and durability just like the bigger YZs.

•New Engine
The all-new 65cc two-stroke engine features Yamaha’s legendary YPVS, mechanical power valve system for a broad spread of power and torque across the entire RPM range.

•New Chassis
With a new steel frame and adjustable front and rear suspension, the YZ65 offers riders the traction confidence and tunability of full-size motocross machines in a compact package.

•All-New Two-Stroke Engine
The 65cc two-stroke powerplant is all new for the 2018 YZ65, and features the same advanced technologies found in Yamaha’s race-winning YZ125 and YZ250 motocrossers.

•Race-Developed Intake
Proven reed-valve induction improves acceleration and throttle response across the entire powerband, with a carefully tuned Keihin® PWK28 carburetor to meter fuel flow.

•Yamaha Power Valve System
Patented YPVS™ combines crisp bottom-end torque with potent midrange and free-revving top-end, making the most of the compact engine and lightweight chassis.

•Close-Ratio Transmission
Six-speed, close-ratio transmission optimizes gear ratios for maximum performance, giving riders the right gear for every race condition.

•Digital Ignition
Digital CDI system delivers precise spark and monitors engine speed to ensure optimal timing for excellent response.

•Efficient Cooling System
Compact radiator features optimized hose routing to deliver maximum cooling efficiency even in the toughest racing conditions.

•Compact Steel Frame
The YZ65 offers light, neutral handling built on an all-new steel cradle frame. Designed around the rigidity balance required for the 65cc class, this new frame delivers excellent grip feeling even across bumpy track surfaces, jump landings and whoop sections.

•Lightweight Subframe
Removable aluminum rear subframe is constructed of square-section tubing for reduced weight and convenient maintenance, just like on the full-size motocross bikes.

Up front, a 36mm KYB® coil spring fork offers unmatched compliance with settings based on Yamaha’s extensive testing experience. Out back, a new link-less shock design is light and compact to suit the needs of 65cc-class riders, and controls a new swingarm with YZ125-style chain adjusters. Both front and rear suspension systems are tunable for both rebound and compression damping.

•Dual Wave-Type Disc Brakes
Wave-style brake rotors are lighter than conventional rotors and have that full size YZ family style.

Maxxcross SI® tires offer good grip across of a variety of track conditions, utilizing 60/100-14 front and 80/100-12 rear tire sizes.

•Adjustable Ergonomics
The YZ65 is highly tunable to fit riders of various sizes, with a 4-position adjustable aluminum taper handlebar clamp, adjustable position clutch and front brake levers, grippy foot pegs, and long seat design to help riders move across the bike.
The YZ65 may be the smallest member of the family, but it packs in the same aggressive styling as the larger YZ and YZ-F siblings, even down to the slick blue Excel® wheels.

•Engine Displacement – 64.8cc
•Bore x Stroke – 43.5mm x 43.6mm
•Compression Ratio – 8.1~9.1:1
•Fuel System – Keihin® PWK28 carburetor
•Transmission – 6-speed; multiplate wet clutch
•Final Drive – 420 Chain
•Suspension Front – 36mm KYB® coil spring, adjustable compression and rebound damping; 8.5-in travel
•Suspension Rear – Single shock, adjustable compression and rebound damping; 10.6-in travel
•Brakes Front – Nissin 198mm hydraulic disc
•Brakes Rear – Nissin 190mm hydraulic disc
•Tires Front – 60/100-14 Maxxis® Maxxcross SI®
•Tires Rear – 80/100-12 Maxxis® Maxxcross SI®
•Overall Length – 63.5 in
•Overall Width – 30.0 in
•Overall Height – 39.5 in
•Seat Height – 29.5 in
•Wheelbase – 45.0 in
•Ground Clearance – 10.5 in
•Rake/Trail – 26.4° / 2.5 in
•Fuel Capacity – 0.9 gal
•Curb Weight – 134 lb


  1. Why the hell the 65 got a power valve but the 85 doesn’t the reason I don’t have a yz85 is because no power valve


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