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Key Features and Details

Year2025
Body TypeMini Bike
Stock #M021212
Kilometres—
TransmissionManual
Engine85 CC
Power—
Drive Type#428 Chain
Fuel System84.9cc, 2-stroke, Liquid cooled, Power valve, 1-cyl
Vin #VBKMRC233T9504654
Reg #—

Dealer Comments

Get ready to dominate the track with the all-new 2026 KTM 85 SX Small-Wheel – the ultimate junior motocross machine upgraded to punch way above its size. Designed with a full-chromoly frame, aluminum/polyamide subframe and lightweight one-piece swingarm, this 85SX borrows the chassis geometry from KTM’s full-size race bikes for unmatched agility and stability out of the gate.

The WP XACT suspension setup — a 43 mm WP XACT USD front fork and a WP XACT PDS rear monoshock — delivers championship-level damping and handling, perfectly matched to the black Excel rims and Maxxis tires. For 2026, KTM has fitted a newly adjustable rear brake lever (with two length settings), a more robust throttle-cable assembly with stabilizer cap, and a simpler, threaded radiator-closure for easier maintenance — thoughtful touches that make the bike race-ready and easier to use for young riders.

Add in a 2-stroke 84.9 cc engine hooked to a 6-speed gearbox with a hydraulic DS clutch and HIDRIA digital ignition for strong power delivery and quick response, and you’ve got a machine that’s razor-sharp, nimble, and more than ready to launch your next champion.

Ready to take the plunge?

We are a KTM dealership in northwest NSW with years of experience, finance and delivery options are available, conditions apply, call or message us for more information.

EngineSize: 85
EngineType: Piston
FuelCapacity: 5.4
FuelType: Petrol
LAMS Approved: False
Vehicle Class: Motocross 2 Stroke (0 - 125cc)
Engine Config: Vertical
Engine Stroke: 2
Bore: 47.0mm
Stroke: 49.0mm
Cam Type: Power Valve
Induction System: Aspirated
Carburettor: Keihin PWK 28
Number of Throttle Bodies: 1
Throttle Bore: 28mm
Cooling: Liquid
Exhaust Description: Aluminium silencer
Ignition: CDI (Capacitive Discharge Ignition)
Starter: Kick
Charging Method: Alternator & Regulator-Rectifier
Recommended RON: 98
Gear Change Method: Left foot lever
Clutch Type: Wet; Multi-disc; Formula hydraulics
Frame Design: Central double cradle
Side Stand: Not Available
Front Suspension: WP Xact AER fork (Split fork design, capsuled air spring in the left leg/oil damping system in the right leg)
Front Suspension Travel: 278.0mm
Rear Suspension: Single WP Xact PDS shock absorber; Fully adjustable
Rear Suspension Travel: 289.0mm
Swingarm Type: Dual Sided
Front Brake Description: Single wave disc; Formula caliper; Hydraulic
Front Brake Caliper(s): Four Piston
Front Brake Diameter: 240.0mm
Rear Brake Description: Single wave disc; Hydraulic
Rear Brake Caliper(s): Double Piston
Rear Brake Diameter: 210.0mm
ABS: Not Available
Linked Braking System: Not Available
Wheel Type: Black coated EXCEL rims; Laced-spokes; CNC machined hubs
Wheel Size Front: 1.40x17"
Wheel Size Rear: 1.60x14"
Rear Tyre: 90/100-14" Maxxis MX-ST
Front Tyre: 70/100-17" Maxxis MX-ST
Wheelbase: 1282mm
Seat Height: 850mm
Seating Capacity: 1
Traction Control: Not Available