KTM 85 SX 19/16 Zoll (2025) — Specs
Identity
Manufacturer: KTM
Model: 85 SX 19/16 Zoll
Category: MX-Offroad
Type: MX-Offroad
Years: 2025 →
Engine
Displacement (cc): 85
Cylinders: 1
Torque (Nm): 18
Dimensions
Overall length: 2185 mm
Overall width: 825 mm
Overall height: 1280 mm
Wheelbase: 1490 mm
Ground clearance: 370 mm
Seat height (mm): 871
Tank (L): 5.4
Tires
Front tire: 70/100-17
Rear tire: 90/100-14
Drivetrain
Drive chain: chain drive 428
Sprockets (front / rear): 13 / 49
Fluids & Filters
Air filter: OEM air filter
Brake fluid: DOT 4
Service
Battery: OEM battery specification
Service interval (km): 3000
Service interval (months): 12
Parts and consumables for this motorcycle
Data is gathered with care, but without guarantee. Always confirm critical information with your dealer or workshop.
Service notes
Service interval: every 3,000 km or 12 months, whichever comes first. Brake fluid: DOT 4. Chain: chain drive 428, sprockets 13/49 teeth. Tire size: front 70/100-17, rear 90/100-14. Always confirm critical values with the workshop manual or an authorised dealer.
OEM and quality aftermarket parts that fit this bike. Always confirm with your dealer before ordering.
Engine oil
Spec: 2-stroke premix (JASO FC/FD), typical ratio 32:1–50:1
- OEM OEM 2-stroke oil (JASO FC/FD)
- Premium Motul 800 2T Off Road (100% Synthetic, race)
- Premium Motul 510 2T Technosynthese (Semi-Synthetic)
- Standard Repsol Moto Sintetico 2T (Synthetic)
- Standard Elf Moto 2 Tech (Semi-Synthetic)
Fully Synthetic vs Semi-Synthetic
| Fully Synthetic | Semi-Synthetic | |
|---|---|---|
| Base oil | 100% chemical synthesis (ester or PAO) | Mineral oil + synthetic additives |
| Heat resistance | Excellent — stable at extreme heat & RPM | Good — suitable for normal temperatures |
| Cold start | Better — reaches engine faster when cold | Good — adequate for normal climates |
| Change interval | Longer (up to 10,000 km) | Shorter (5,000–7,000 km typical) |
| Price | Higher | Lower |
Oil filter
Spec: Not applicable — 2-stroke engine has no replaceable oil filter cartridge
- OEM 2-stroke engine — no engine-oil filter to replace.
- OEM Use the recommended 2-stroke oil grade listed above — clean oil is your only filtration.
Air filter
Spark plug
Front brake pads
Rear brake pads
Drive chain
Spec: chain drive 428 | Sprockets 13/49 teeth / chain drive 428
Front tire
Spec: 70/100-17
- OEM OEM 70/100-17
Rear tire
Spec: 90/100-14
- OEM OEM 90/100-14
Battery
Brake fluid
Spec: DOT 4
- Standard TotalEnergies HBF4
Coolant
Service interval
Spec: 3 000 km / 12 months
- OEM Engine oil + oil filter change
- OEM Air filter inspection
- OEM Spark plug check
- OEM Brake fluid replacement: every 2 years
Valve check
Spec: Not applicable — 2-stroke engine has no valves
- OEM 2-stroke engine — no valve clearance to inspect.
- OEM Inspect piston, rings and cylinder at engine rebuild intervals (~30–50 hours for race, longer for street).
- OEM Check exhaust power-valve operation (if equipped) every 20–30 service hours.
Suspension
Spec: 43 mm USD fork
- OEM Fork: 43 mm USD fork
