Harley-Davidson Sport Glide 107 (FLSB Softail) — OEM Fluid, Tire Pressure & Maintenance Specs
1,746cc Air/Oil-Cooled Dual-Counterbalanced 45° V-Twin Milwaukee-Eight 107 · Source: Harley-Davidson Sport Glide 107 (FLSB Softail) (2018–2024) Official Owner’s Manual Maintenance Specifications
According to the Harley-Davidson Sport Glide 107 (FLSB Softail) (2018–2024) Official Owner’s Manual Maintenance Specifications, the 2018–2024 Harley-Davidson Sport Glide 107 (FLSB Softail) (chassis FLSB) requires 4.3 L (4.54 US qt) of SAE 20W-50 (JASO MA2, Screamin’ Eagle SYN3 20W-50 / H-D 360 20W-50) engine oil for a drain-only change and 4.7 L (4.97 US qt) with filter service (HD 62700296 / 62700297 (HF171C)). Standard solo cold tire pressure is 248 kPa / 2.48 bar / 36 PSI front (130/70B18 63H) and 276 kPa / 2.76 bar / 40 PSI rear (180/70B16 77H), paired with 4× HD 6R10 (31600012 Dual-Plug M8) spark plug(s) and a YTX20HL-BS / HD 65989-97E battery.
Drain only: 4.3 L (4.54 US qt)
R 276 kPa (2.76 bar)
Est. Range: ~350 km (217 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 20W-50 / H-D 360 20W-50 |
| Oil Volume (Drain / With Filter / Overhaul) |
• Drain only: 4.3 L (4.54 US qt) • With filter/strainer: 4.7 L (4.97 US qt) • Complete dry overhaul: 5.2 L (5.49 US qt) |
| OEM Oil Filter Code & Type | HD 62700296 / 62700297 (HF171C) |
| Correct Oil Level Check Method | At full operating temperature resting ON THE SIDESTAND (Jiffy Stand); thread dipstick in to read |
| Oil Drain Bolt Torque | 24 N·m (17.7 lb-ft / 2.45 kgf·m) — Use fresh crush washer |
| Primary Chaincase Fluid | 1065 ml (1.06 L) — H-D Formula+ Primary & Clutch Fluid (900–1,065 ml wet refill) |
| Separate Transmission / Gearbox Oil | 828 ml (0.83 L) — H-D Formula+ or Heavy Synthetic Gear Oil 80W-140 (828 ml / 28 oz) |
2. Cold Tire Pressures, Wheels, Ignition & Drivetrain
| Front / Rear OEM Tire Sizes | Front: 130/70B18 63H · Rear: 180/70B16 77H (Tubeless) |
|---|---|
| Cold Tire Pressure — Solo Riding |
Front: 248 kPa / 2.48 bar / 36 PSI Rear: 276 kPa / 2.76 bar / 40 PSI |
| Cold Tire Pressure — 2-Up / Loaded Touring |
Front: 248 kPa / 2.48 bar / 36 PSI Rear: 290 kPa / 2.90 bar / 42 PSI |
| OEM Spark Plug & Quantity | HD 6R10 (31600012 Dual-Plug M8) × 4 (Gap: 0.8–0.9 mm) |
| OEM Battery Code & Rating | YTX20HL-BS / HD 65989-97E (12V 18.0Ah Heavy-Duty AGM) |
| Final Drive Maintenance | Carbon/Aramid Reinforced Secondary Belt — Inspect belt deflection and pulley debris |
| Brake Fluid & Coolant | DOT 4 · Air/Oil-Cooled Engine (No liquid coolant) |
3. Ergonomics, Range & Scheduled Service Intervals
| Displacement · Max Power · Peak Torque | 1746 cc · 84 hp @ 5,020 rpm · 145 N·m (106.9 lb-ft) @ 3,000 rpm |
|---|---|
| Seat Height & Wet Curb Weight | 680 mm (26.8 in) · 317 kg (699 lbs) |
| Fuel Tank & Est. Real-World Range | 18.9 L (5.0 US gal) · ~18.5 km/L → ~350 km (217 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 / 48,000 km • Valve Clearance Check: 48,000 km |
4. Generation Cutoffs & Real-World Wrenching Gotchas
Model-Year & Chassis Generation Notes
Launched in 2018 as a quick-convertible Softail tourer, the FLSB combines tool-free detachable mini-fairing and clamshell bags with a 43 mm inverted fork, Mantis wheels, and external preload knob.
Oil & Clutch Mechanical Engineering Note
Fitted with a sweeping 2-into-1 exhaust on the M8 107 Softail platform, the FLSB uses standard 3-Hole lubrication with 4.7 L of SAE 20W-50 engine oil, Formula+ primary, and 6-speed gear oil.
Garage Wrenching Gotchas
- Always tug upward on the quick-detach clamshell saddlebags after rotating the internal cam levers to confirm positive engagement on the docking posts before riding.
- The sweeping 2-into-1 muffler body blocks right-side rear axle extraction; unbolt and slip off the rear muffler canister before pulling the rear wheel.
5. Frequently Asked Questions (FAQ)
How are engine and separate drivetrain fluid capacities split on the Harley-Davidson Sport Glide 107 (FLSB Softail)?
The engine sump takes 4.3 L drain-only and 4.7 L (4.97 US qt) with filter (HD 62700296 / 62700297 (HF171C)) of SAE 20W-50 (JASO MA2), while isolated drivetrain cavities (primary chaincase 1065 ml, separate gearbox 828 ml) require dedicated gear/chaincase fluid.
How do you accurately check the oil level on the Sport Glide 107 (FLSB Softail), 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 24 N·m with a new crush washer. Factory oil change intervals are every 8,000 km, with valve clearance inspection every 48,000 km.
What are the cold tire pressures, puncture repair type, seat height, and range of the Sport Glide 107 (FLSB Softail)?
Fitted with 130/70B18 63H front and 180/70B16 77H rear tubeless rims (compatible with roadside plug kits), set cold tire pressures to 36 / 40 PSI (248/276 kPa) solo or 36 / 42 PSI loaded. Seat height is 680 mm (26.8 in) at 317 kg wet weight, delivering ~350 km per 18.9 L tank.