2023 KTM 85 SX 19/16

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If you're reading this, then it is safe to say things have become serious. The 2023 KTM 85 SX - in big wheel guise - is the first real step into the big leagues. Lightweight, powerful and reliable, the KTM 85 SX boasts real big bike components in scaled-down 85 cc geometry, providing the ultimate kickstart to any young racing career.

2023 KTM 85 SX HIGHLIGHTS

• New graphics match the look of the all-new full-sized SX machines. 
• New MAXXIS MX-ST tires are mounted to black coated high-end Excel rims with lightweight, CNC machined hubs and black spokes with lightweight aluminum nipples. 
• New clutch pressure plate design on the DS (Diaphragm Spring) clutch provides increased durability. 
• Formula brakes featuring a 2-piston floating front caliper and a single-piston floating rear with dimensions close to full-size SX brakes.
• Throttle assembly with roller actuation.
• Formula hydraulic clutch with master cylinder design to match the brake master cylinder. 
• Extremely compact engine mated to a precise 6-speed transmission, delivering class-leading power and torque. 
• Power valve system is adjustable and increases torque and controllability. 
• The frame is a genuine high-tech product designed for maximum performance and is made of hydro formed chromium molybdenum steel tubes. 
• WP XACT 43 mm front fork with a sophisticated air spring design and separate damping provide easy adjustment to any track condition, rider weight or skill level. 
• WP XACT rear shock with PDS (Progressive Damping System) technology provides excellent bump absorption and stability. 
• Aluminum subframe is light and compact for better mass centralization. 
• Cooling system features integrated crankcase cooling and two radiators.

SPECIFICATIONS

Engine Type: Single Cylinder, 2-Stroke

Displacement: 84.9 cc

Bore / Stroke: 47 / 48.95 mm

Starter: Kickstarter

Transmission: 6 Gears

Fuel System: Keihin PWK 28

Lubrication: Premix 40:1

Primary Ratio: 20:64

Final Drive: 13:46

Cooling: Liquid Cooling

Clutch: Wet Multi-Disc DS Clutch, Formula Hydraulics

Ignition: MEDJ digital

Frame: Central Tube Frame, Chrome Molybdenum 

Subframe: Aluminum

Handlebar: Tapered Aluminum Ø 28/22 mm

Front Suspension: WP XACT USD Fork, Ø 43 mm

Rear Suspension: WP XACT, PDS Monoshock 

Suspension Travel Front/Rear: 278 / 350 mm; 11 / 12 in

Front/Rear Brakes: Disc Brake 240 mm / 220 mm

Front/Rear Rims: 1.60 x 19” / 1.85 x 16” Excel - Black

Front/Rear Tires: 70/100-19” / 90/100-16” MAXXIS

Chain: 1/2 x 5/16 in

Silencer: Aluminum

Steering Head Angle: 24º

Triple Clamp Offset: 14 mm

Wheelbase: 1,290 mm ± 10 mm / 50.8 in ± 0.4 in

Ground Clearance: 362 mm / 14.2 in

Seat Height: 890 mm / 35 in

Tank Capacity, Approx: 5.2 L / 1.4 gal

Weight (without fuel), Approx: 68 kg / 149.9 lbs