Ducati DesertX Rally (937) — OEM Fluid, Tire Pressure & Maintenance Specs
937cc Liquid-Cooled 90° L-Twin Testastretta 11° (48mm KYB Closed-Cartridge & Takasago Excel Rims) · Source: Ducati DesertX Rally (937) (2024–Present) Official Owner’s Manual Maintenance Specifications
According to the Ducati DesertX Rally (937) (2024–Present) Official Owner’s Manual Maintenance Specifications, the 2024–Present Ducati DesertX Rally (937) (chassis 5A-RL) requires 3.2 L (3.38 US qt) of SAE 15W-50 (JASO MA2, API SM / Shell Advance Ducati 15W-50) engine oil for a drain-only change and 3.6 L (3.80 US qt) with filter service (44440291C / HF159). Standard solo cold tire pressure is 220 kPa / 2.20 bar / 32 PSI front (90/90 - 21 M/C 54R M+S) and 220 kPa / 2.20 bar / 32 PSI rear (150/70 R18 M/C 70R M+S), paired with 2× NGK MAR9A-J spark plug(s) and a YT12B-BS battery.
Drain only: 3.2 L (3.38 US qt)
R 220 kPa (2.20 bar)
Est. Range: ~374 km (232 mi)
1. Engine Lubrication, Filter & Clutch Specifications
| Clutch Architecture | Wet Multi-Plate Manual Clutch NEVER use JASO MB |
|---|---|
| Recommended Viscosity & Grade | SAE 15W-50 · JASO MA2 · API SM / Shell Advance Ducati 15W-50 |
| Oil Volume (Drain / With Filter / Overhaul) |
• Drain only: 3.2 L (3.38 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 | 44440291C / HF159 |
| 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 M/C 54R M+S · Rear: 150/70 R18 M/C 70R M+S (Tube-Type Spoke Rim) |
|---|---|
| Cold Tire Pressure — Solo Riding |
Front: 220 kPa / 2.20 bar / 32 PSI Rear: 220 kPa / 2.20 bar / 32 PSI |
| Cold Tire Pressure — 2-Up / Loaded Touring |
Front: 240 kPa / 2.40 bar / 35 PSI Rear: 260 kPa / 2.60 bar / 38 PSI |
| OEM Spark Plug & Quantity | NGK MAR9A-J × 2 (Gap: 0.8 mm) |
| OEM Battery Code & Rating | YT12B-BS (12V 10.0Ah Slim MF AGM) |
| Final Drive Maintenance | 525 Heavy-Duty X-Ring Chain — Maintain 25–35 mm slack and lubricate regularly |
| Brake Fluid & Coolant | DOT 4 · OAT ethylene-glycol coolant for aluminum radiators (50:50 premix) |
3. Ergonomics, Range & Scheduled Service Intervals
| Displacement · Max Power · Peak Torque | 937 cc · 110 hp @ 9,250 rpm · 92 N·m (67.9 lb-ft) @ 6,500 rpm |
|---|---|
| Seat Height & Wet Curb Weight | 910 mm (35.8 in) · 224 kg (494 lbs) |
| Fuel Tank & Est. Real-World Range | 21 L (5.5 US gal) · ~17.8 km/L → ~374 km (232 mi) |
| OEM Scheduled Maintenance Intervals |
• First Break-In: 1,000 km • Engine Oil / Filter: 15,000 km / 15,000 km • Air Filter / Spark Plug: 30,000 km / 30,000 km • Valve Clearance Check: 30,000 km |
4. Generation Cutoffs & Real-World Wrenching Gotchas
Model-Year & Chassis Generation Notes
Hardcore competition-spec DesertX featuring 48 mm KYB closed-cartridge forks (250 mm travel), billet clamps, forged carbon sump guard, and tubed Takasago Excel rims.
Oil & Clutch Mechanical Engineering Note
Note Takasago Excel center-spoked rims use inner tubes (unlike standard tubeless DesertX); service the 937cc sump with 3.6 L SAE 15W-50 JASO MA2.