2021 Harley Davidson Sportster 1200 (Forty-Eight / Iron 1200) Specifications & Consumables
Official workshop technical reference: fluid capacities, spark plug codes, drive chain specs, and tire inflation pressures.
Factory Platform Compatibility: All workshop fluid capacities, maintenance milestones, torque specifications, and consumables on this specification sheet are factory-identical across model years 2007 through 2022.
Engineering Subsystem Workbenches & Calculators
Dedicated deep-dive diagnostic tools, torque matrices, wiring pinouts, and calculators tailored for 2021 Harley Davidson Sportster 1200 (Forty-Eight / Iron 1200).
Fastener Torques
Engine drain plug, axle spindles, caliper mounts, triple clamp pinch bolts & thread lubrication derating guide.
Fluids & Capacities
Oil: 2.65 L (2.80 US qt) • Coolant: N/A • Brake: DOT 4
Fuses & Relays
Main: 40A Maxi-Fuse • Location: Under rider seat
Compression & Leakdown
Ratio: 10.0:1 • Std: 155-190 PSI • Limit: 125 PSI
Valve Clearances
Intake: N/A mm • Exhaust: N/A mm
Fuel Delivery & TB Sync
Idle: N/A • Rail Pressure: N/A • Vacuum: N/A
Charging & Battery
Battery: YTX14L-BS (200 CCA) • Regulated: 14.0 - 14.6 V DC
Tires & Gearing
Front: 100/90-19 (36 PSI) • Rear: 150/80B16 (42 PSI)
Suspension & Sag
Front Travel: 92 mm • Rear Travel: 54 mm
Maintenance Schedule
Oil: Every 5,000 miles (8,000 km) mi • Valves: Every 26,600 mi • Spark Plugs: Every 10,000 miles (16,000 km) mi
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