Harley-Davidson Street 750 (XG750 Revolution X) — OEM Fluid, Tire Pressure & Maintenance Specs
749cc Liquid-Cooled 60° V-Twin SOHC 8-Valve Revolution X (Unit Sump) · Source: Harley-Davidson Street 750 (XG750 Revolution X) (2015–2020) Official Owner’s Manual Maintenance Specifications
According to the Harley-Davidson Street 750 (XG750 Revolution X) (2015–2020) Official Owner’s Manual Maintenance Specifications, the 2015–2020 Harley-Davidson Street 750 (XG750 Revolution X) (chassis XG750) requires 2.8 L (2.96 US qt) of SAE 20W-50 (JASO MA2, Screamin’ Eagle SYN3 15W-50 Full Synthetic) engine oil for a drain-only change and 3.1 L (3.28 US qt) with filter service (HD 62700045 / HF171B). Standard solo cold tire pressure is 234 kPa / 2.34 bar / 34 PSI front (100/80-17 52H) and 262 kPa / 2.62 bar / 38 PSI rear (140/75R15 65H), paired with 2× HD 6R10 / NGK CR8E spark plug(s) and a YTX14L-BS / HD 65958-04B battery.
Drain only: 2.8 L (2.96 US qt)
R 262 kPa (2.62 bar)
Est. Range: ~282 km (175 mi)
1. Engine Lubrication, Filter & Clutch Specifications
| Clutch Architecture | Wet Multi-Plate Manual Clutch NEVER use JASO MB |
|---|---|
| Recommended Viscosity & Grade | SAE 20W-50 · JASO MA2 · Screamin’ Eagle SYN3 15W-50 Full Synthetic |
| Oil Volume (Drain / With Filter / Overhaul) |
• Drain only: 2.8 L (2.96 US qt) • With filter/strainer: 3.1 L (3.28 US qt) • Complete dry overhaul: 3.4 L (3.59 US qt) |
| OEM Oil Filter Code & Type | HD 62700045 / HF171B |
| Correct Oil Level Check Method | At full operating temperature resting ON THE SIDESTAND (Jiffy Stand); thread dipstick in to read |
| Oil Drain Bolt Torque | 25 N·m (18.4 lb-ft / 2.55 kgf·m) — Use fresh crush washer |
2. Cold Tire Pressures, Wheels, Ignition & Drivetrain
| Front / Rear OEM Tire Sizes | Front: 100/80-17 52H · Rear: 140/75R15 65H (Tubeless) |
|---|---|
| Cold Tire Pressure — Solo Riding |
Front: 234 kPa / 2.34 bar / 34 PSI Rear: 262 kPa / 2.62 bar / 38 PSI |
| Cold Tire Pressure — 2-Up / Loaded Touring |
Front: 234 kPa / 2.34 bar / 34 PSI Rear: 290 kPa / 2.90 bar / 42 PSI |
| OEM Spark Plug & Quantity | HD 6R10 / NGK CR8E × 2 (Gap: 0.8–0.9 mm) |
| OEM Battery Code & Rating | YTX14L-BS / HD 65958-04B (12V 12.0Ah MF AGM) |
| Final Drive Maintenance | Carbon/Aramid Reinforced Secondary Belt — Inspect belt deflection and pulley debris |
| 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 | 749 cc · 53 hp @ 8,000 rpm · 59 N·m (43.5 lb-ft) @ 4,000 rpm |
|---|---|
| Seat Height & Wet Curb Weight | 720 mm (28.3 in) · 233 kg (514 lbs) |
| Fuel Tank & Est. Real-World Range | 13.1 L (3.5 US gal) · ~21.5 km/L → ~282 km (175 mi) |
| OEM Scheduled Maintenance Intervals |
• First Break-In: 1,600 km • Engine Oil / Filter: 8,000 km / 8,000 km • Air Filter / Spark Plug: 24,000 km / 32,000 km • Valve Clearance Check: 24,000 km |
4. Generation Cutoffs & Real-World Wrenching Gotchas
Model-Year & Chassis Generation Notes
Built as a nimble urban V-twin, the XG750 received major 2017 updates including larger 300 mm brake rotors, optional ABS, and revised wiring—making brake pads non-interchangeable with 2015–2016 bikes.
Oil & Clutch Mechanical Engineering Note
Its liquid-cooled Revolution X 750 shares 3.1 L of SAE 20W-50 JASO MA2 across engine, wet clutch, and 6-speed gearbox in a single unitized sump with spin-on filter 62700045.
Garage Wrenching Gotchas
- On 2015–2016 builds, flush DOT 4 brake fluid strictly every two years to prevent caliper seal drag and confirm completion of the fuel-pump outlet recall.
- Shine a flashlight behind the lower radiator splash shroud to read the coolant recovery bottle level accurately, and keep radiator fins clear of urban road grime.
5. Frequently Asked Questions (FAQ)
What oil volume, JASO grade, and oil filter code does the Harley-Davidson Street 750 (XG750 Revolution X) (2015–2020) require?
Because its wet multi-plate clutch shares engine oil with the gearbox, run SAE 20W-50 (JASO MA2) at 2.8 L (2.96 US qt) drain-only and 3.1 L (3.28 US qt) with filter (HD 62700045 / HF171B).
How do you accurately check the oil level on the Street 750 (XG750 Revolution X), and what are its service intervals?
Bring the engine to full operating temperature and check the Full Hot mark with the motorcycle resting on its sidestand (Jiffy Stand) on level pavement—measuring upright leads to crankcase overfill and breather blow-by. Torque the drain plug to 25 N·m with a new crush washer. Factory oil change intervals are every 8,000 km, with valve clearance inspection every 24,000 km.
What are the cold tire pressures, puncture repair type, seat height, and range of the Street 750 (XG750 Revolution X)?
Fitted with 100/80-17 52H front and 140/75R15 65H rear tubeless rims (compatible with roadside plug kits), set cold tire pressures to 34 / 38 PSI (234/262 kPa) solo or 34 / 42 PSI loaded. Seat height is 720 mm (28.3 in) at 233 kg wet weight, delivering ~282 km per 13.1 L tank.