Spunky's Motorcycle Shop

Information

Based on the championship-winning YZ250F, a lightweight, compact chassis offers improved agility and handling in tight, technical terrain, along with better ergos and a more comfortable riding position for less fatigue over greater distances. The perfect weapon for carving up cross country courses.

An updated Launch Control System controlled through the Power Tuner App optimizes launches when the gate drops.
New for 2026, an industry-first ECU lock function prevents theft and unauthorized engine start-up via a password-required lock.
A forged piston features a bridge-box design for maximized strength with minimal weight.
Intake ports, cam profiles, high-strength connecting rod and optimized crank combine to produce potent high-rpm power.
A more efficient intake path and revised ECU settings result in better top-end performance and improved over-rev character.
A redesigned aluminum bilateral beam frame is tuned to provide the perfect balance of stability and cornering performance.
Fully adjustable Speed Sensitive KYB® fork delivers exceptional balance between handling and bump absorption.

ENGINE 4-stroke, liquid-cooled, DOHC, 4-valve (titanium), single
DISPLACEMENT 250 cc
BORE AND STROKE 77 x 53.6 mm
COMPRESSION RATIO 13.8:1
FUEL DELIVERY 44 mm Mikuni throttle body F.I.
LUBRICATION Wet sump
IGNITION / STARTING TCI
TRANSMISSION Constant-mesh 5-speed
FINAL DRIVE Chain

SUSPENSION (FRONT) Fully adj. KYB SSS inverted fork / 300 mm (11.8 in) wheel travel
SUSPENSION (REAR) Fully adj. KYB monoshock / 305 mm (12 in) wheel travel
BRAKES (FRONT) Hydraulic disc, 270mm
BRAKES (REAR) Hydraulic disc, 240mm
TIRES (FRONT) 80/100-21 Dunlop® Geomax MX33F
TIRES (REAR) 110/90-18 Dunlop® Geomax MX33

LENGTH 2,170 mm (85.4 in)
WIDTH 825 mm (32.5 in)
HEIGHT 1,265 mm (49.8 in)
WHEELBASE 1,470 mm (57.9 in)
GROUND CLEARANCE 330 mm (13")
SEAT HEIGHT 955 mm (37.6")
FUEL CAPACITY 7.4 L (2.1 gal.)
WET WEIGHT 110 kg (243 lb)
COLOUR(S) Team Yamaha Blue