KTM 1090 Adventure R — OEM Fluid, Tire Pressure & Maintenance Specs
1,050cc Liquid-Cooled 75-deg V-Twin DOHC 8-Valve LC8 (125 hp) · Source: KTM 1090 Adventure R (2017–2019) Official Owner’s Manual Maintenance Specifications
According to the KTM 1090 Adventure R (2017–2019) Official Owner’s Manual Maintenance Specifications, the 2017–2019 KTM 1090 Adventure R (chassis VBKV2940-109/LC8-1050R) requires 3.1 L (3.28 US qt) of SAE 10W-50 (JASO MA2, Motorex Power Synt 4T 10W-50 Full Synthetic) engine oil for a drain-only change and 3.6 L (3.80 US qt) with filter service (60038015000 / HF650). Standard solo cold tire pressure is 240 kPa / 2.40 bar / 35 PSI front (90/90-21) and 290 kPa / 2.90 bar / 42 PSI rear (150/70 ZR18), paired with 4× NGK LKAR8BI-9 + LMAR7AI-8 spark plug(s) and a YTZ10S / YTZ14S battery.
Drain only: 3.1 L (3.28 US qt)
R 290 kPa (2.90 bar)
Est. Range: ~426 km (265 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: 3.1 L (3.28 US qt) • With filter/strainer: 3.6 L (3.80 US qt) • Complete dry overhaul: 4 L (4.23 US qt) |
| OEM Oil Filter Code & Type | 60038015000 / HF650 |
| 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: 90/90-21 · Rear: 150/70 ZR18 (Tubeless) |
|---|---|
| Cold Tire Pressure — Solo Riding |
Front: 240 kPa / 2.40 bar / 35 PSI Rear: 290 kPa / 2.90 bar / 42 PSI |
| Cold Tire Pressure — 2-Up / Loaded Touring |
Front: 240 kPa / 2.40 bar / 35 PSI Rear: 290 kPa / 2.90 bar / 42 PSI |
| OEM Spark Plug & Quantity | NGK LKAR8BI-9 + LMAR7AI-8 × 4 (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 | 1050 cc · 125 hp @ 8,500 rpm · 109 N·m (80.4 lb-ft) @ 6,500 rpm |
|---|---|
| Seat Height & Wet Curb Weight | 890 mm (35.0 in) · 230 kg (507 lbs) |
| Fuel Tank & Est. Real-World Range | 23 L (6.1 US gal) · ~18.5 km/L → ~426 km (265 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
Purist favorite combining the 125 hp 1,050cc LC8 V-twin with 48 mm WP off-road suspension, 21/18 tubeless spoke wheels, and minimal electronic complexity.
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.