2019 KTM 790 DukeChain slack: 30–40 mmRear axle: 90 NmOil: 2.4 LValves: 30 000 km
KTM 790 Duke
2019 · EU Market
Reference data for routine maintenance procedures. Always verify against your service manual.
The 2019 KTM 790 Duke is a middleweight naked motorcycle with a parallel-twin engine, 520 chain, and modern electronics. It is designed for sporty street riding and agile handling.
| Size | 520 |
| Slack | 30–40 mm |
| Axle nut torque | 90 Nm |
| Sprocket teeth | Front: 16 · Rear: 41 |
| Grade | 10W-50 (JASO MA2) |
| Capacity (no filter) | 2.4 L |
| Capacity (with filter) | 2.7 L |
| Filter model | KTM 61338015100 (or equivalent) |
| Front axle | 60 Nm |
| Rear axle | 90 Nm |
| Front caliper bolts | 45 Nm |
| Rear sprocket nuts | 60 Nm |
| Spark plug | LMAR8AI-10 (or equivalent iridium) |
| Valve clearance (cold) | Intake: 0.10–0.15 mm · Exhaust: 0.12–0.17 mm |
| Battery | YT12B-BS (AGM) or LiFePO₄ equivalent |
| Front | 120/70 ZR17 · 2.4 bar |
| Rear | 180/55 ZR17 · 2.9 bar |
| Coolant | Ethylene glycol, silicate-free (50/50) |
| Brake fluid | DOT 4 |
| Valve clearance check | 30 000 km |
| Spark plug replacement | 15 000–30 000 km |
| Air filter replacement | 15 000 km (sooner in dust) |
| Coolant replacement | 3 years |
| Brake fluid replacement | 2 years |
Disclaimer
- • Specifications may vary by VIN, market variant, and model year.
- • Always consult your owner's manual and service documentation.
- • Use this information at your own risk.