KTM 890 Duke / Duke GP — OEM Fluid, Tire Pressure & Maintenance Specs
889cc Liquid-Cooled Parallel-Twin DOHC 8-Valve LC8c (115 hp) · Source: KTM 890 Duke / Duke GP (2021–2023) Official Owner’s Manual Maintenance Specifications
According to the KTM 890 Duke / Duke GP (2021–2023) Official Owner’s Manual Maintenance Specifications, the 2021–2023 KTM 890 Duke / Duke GP (chassis VBKTU940-D/LC8c-889D) requires 2.6 L (2.75 US qt) of SAE 10W-50 (JASO MA2, Motorex Power Synt 4T 10W-50 Full Synthetic) engine oil for a drain-only change and 2.8 L (2.96 US qt) with filter service (60038015000 / HF155 (+ Oil Screens)). Standard solo cold tire pressure is 250 kPa / 2.50 bar / 36 PSI front (120/70 ZR17) and 250 kPa / 2.50 bar / 36 PSI rear (180/55 ZR17), paired with 2× NGK LMAR9AI-10 spark plug(s) and a YTZ10S / YTZ14S battery.
Drain only: 2.6 L (2.75 US qt)
R 250 kPa (2.50 bar)
Est. Range: ~301 km (187 mi)
1. Engine Lubrication, Filter & Clutch Specifications
| Clutch Architecture | Wet Multi-Plate Manual Clutch NEVER use JASO MB |
|---|---|
| Recommended Viscosity & Grade | SAE 10W-50 · JASO MA2 · Motorex Power Synt 4T 10W-50 Full Synthetic |
| Oil Volume (Drain / With Filter / Overhaul) |
• Drain only: 2.6 L (2.75 US qt) • With filter/strainer: 2.8 L (2.96 US qt) • Complete dry overhaul: 3.2 L (3.38 US qt) |
| OEM Oil Filter Code & Type | 60038015000 / HF155 (+ Oil Screens) |
| Correct Oil Level Check Method | Hold bike upright on level ground 3–5 min after warm shutdown; read crankcase sight glass |
| Oil Drain Bolt Torque | 20 N·m (14.8 lb-ft / 2.04 kgf·m) — Use fresh crush washer |
2. Cold Tire Pressures, Wheels, Ignition & Drivetrain
| Front / Rear OEM Tire Sizes | Front: 120/70 ZR17 · Rear: 180/55 ZR17 (Tubeless) |
|---|---|
| Cold Tire Pressure — Solo Riding |
Front: 250 kPa / 2.50 bar / 36 PSI Rear: 250 kPa / 2.50 bar / 36 PSI |
| Cold Tire Pressure — 2-Up / Loaded Touring |
Front: 250 kPa / 2.50 bar / 36 PSI Rear: 290 kPa / 2.90 bar / 42 PSI |
| OEM Spark Plug & Quantity | NGK LMAR9AI-10 × 2 (Gap: 1.0 mm) |
| OEM Battery Code & Rating | YTZ10S / YTZ14S (12V 8.6–11.2Ah MF AGM) |
| Final Drive Maintenance | 525 Heavy-Duty X-Ring Chain — Maintain 25–35 mm slack and lubricate regularly |
| Brake Fluid & Coolant | DOT 4 or DOT 5.1 · OAT ethylene-glycol coolant for aluminum radiators (50:50 premix) |
3. Ergonomics, Range & Scheduled Service Intervals
| Displacement · Max Power · Peak Torque | 889 cc · 115 hp @ 9,000 rpm · 92 N·m (67.9 lb-ft) @ 8,000 rpm |
|---|---|
| Seat Height & Wet Curb Weight | 820 mm (32.3 in) · 189 kg (417 lbs) |
| Fuel Tank & Est. Real-World Range | 14 L (3.7 US gal) · ~21.5 km/L → ~301 km (187 mi) |
| OEM Scheduled Maintenance Intervals |
• First Break-In: 1,000 km • Engine Oil / Filter: 15,000 km / 15,000 km • Air Filter / Spark Plug: 15,000 km / 30,000 km • Valve Clearance Check: 30,000 km |
4. Generation Cutoffs & Real-World Wrenching Gotchas
Model-Year & Chassis Generation Notes
Road-focused counterpart to the 890 Duke R pairing 115 hp 889cc punch with a lower 820 mm seat, J.Juan radial calipers, and MotoGP-inspired Duke GP livery.
Oil & Clutch Mechanical Engineering Note
KTM/Husqvarna LC8c parallel-twin (790/890/990, Norden 901) and LC8 V-twin (1190/1290/1390) semi-dry-sump family requiring SAE 10W-50 JASO MA2 and mesh screen service.