Engine:
Complete disassembly, inspection, repair, and reassembly of 450cc and 550cc V-twin engines.
Fuel System:
Fuel injection system (throttle bodies, injectors, fuel pump, pressure regulator), fuel lines, and tank.
Ignition System:
Ignition coils, spark plugs, ECU, wiring diagrams.
Cooling System:
Radiator, cooling fan, water pump, coolant hoses, thermostat.
Exhaust System:
Exhaust headers, catalytic converter (if applicable), mufflers, lambda sensors.
Transmission:
Gearbox (clutch, gears, bearings, shifting mechanism), chain drive, sprockets.
Frame And Suspension:
Frame inspection and repair, front fork (internal components, adjustments), rear shock absorber, swingarm, linkage system.
Wheels And Tires:
Wheel bearing replacement, tire fitting and balancing, rim specifications.
Braking System:
Front and rear brake calipers, master cylinders, brake lines, fluid bleeding procedures, disc specifications.
Electrical System:
Battery, charging system (alternator, regulator/rectifier), starter motor, lighting, fuses, relays, wiring diagrams for all circuits.
Bodywork And Trim:
Fairing removal and installation, seat, fuel tank cover, fenders, graphics.
Controls:
Handlebar, levers (clutch, brake), footpegs, throttle control, shift lever.
Maintenance:
Routine checks, lubrication, filter replacement, spark plug replacement, chain adjustment, oil changes.
Troubleshooting:
Diagnostic procedures for common and uncommon faults, fault code interpretation (if applicable).
Repair:
Step-by-step repair instructions for all major and minor components.
Disassembly Reassembly:
Detailed guides for complete component and vehicle teardown and rebuild.
Torque Specifications:
Precise torque values for all critical fasteners and components.
Depth Of Information:
Comprehensive, from basic checks to full engine rebuilds and electrical system diagnostics.
File Format Detail:
Digital PDF, allows for searching and selective printing.
Print Quality Recommendation:
High resolution for clear diagrams and text; printable for workshop use.
Binding Type For Print:
Spiral-bound or three-ring binder recommended for lay-flat use.
Paper Type For Print:
Heavy-duty, laminated paper recommended for durability in a workshop environment.
Engine Type:
Four-stroke, V-twin, liquid-cooled
Displacement 450:
449.8 cc
Displacement 550:
549.4 cc
Bore Stroke 450:
84 mm x 81 mm
Bore Stroke 550:
95 mm x 76.5 mm
Compression Ratio:
Approx. 12.5:1 (Varies slightly by model variant)
Valvetrain:
DOHC, 4 valves per cylinder
Horsepower 450 Approx:
Approx. 60-65 HP (at crankshaft)
Horsepower 550 Approx:
Approx. 65-70 HP (at crankshaft)
Torque 450 Approx:
Approx. 45-50 Nm (at crankshaft)
Torque 550 Approx:
Approx. 55-60 Nm (at crankshaft)
Fuel Delivery:
Electronic Fuel Injection (EFI) - Keihin throttle bodies
Fuel Type:
Unleaded gasoline, minimum 95 octane recommended
Safety Rating Context:
As a performance motorcycle, formal crash safety ratings like automobiles are not applicable. Focus is on rider active safety systems.
Braking System:
High-performance hydraulic disc brakes, often with radial-mount calipers.
Suspension:
Fully adjustable USD front forks and adjustable rear monoshock for optimal handling and road holding.
Frame Design:
Trellis frame and high-quality suspension components contribute to stability and control.
Infotainment System:
Not applicable for this performance-oriented model; focus is on mechanical and electronic systems.
Driver Assistance Features:
No electronic rider aids like ABS or traction control are standard on this model. Rider skill is paramount.
Connectivity Features:
Not applicable.
ECU:
Engine Control Unit (ECU) manages fuel injection and ignition timing.
Instrumentation:
Digital instrument cluster displaying speed, RPM, odometer, trip meters, and warning lights.
Oil Change Interval:
Typically every 3,000 - 5,000 km (1,800 - 3,000 miles) or annually, refer to manual for exact schedule.
Air Filter Cleaning:
Inspect every 1,000 km (600 miles), clean or replace as needed based on conditions.
Spark Plug Replacement:
Recommended every 6,000 - 10,000 km (3,700 - 6,200 miles).
Chain Adjustment Lubrication:
Check tension and lubricate every 500 km (300 miles) or after riding in wet conditions.
Engine Oil Type:
API SG or higher, JASO MA certified, SAE 10W-40 synthetic motorcycle oil recommended.
Engine Oil Capacity:
Approx. 1.7 Liters (1.8 US qt) with filter change.
Coolant Type:
Ethylene glycol-based antifreeze mixture with de-ionized water (50/50 ratio).
Brake Fluid Type:
DOT 4 or DOT 5.1 hydraulic brake fluid.
Common Wear Items:
Clutch plates, wheel bearings, fork seals, fuel pump components can be wear items requiring diligent maintenance.
Engine Heat Management:
V-twin engines can run warm; ensuring cooling system is in perfect condition is crucial.
Electrical Connections:
Corrosion or loose connections on high-vibration motorcycles can lead to intermittent electrical issues; regular inspection recommended.
Manufacturer Origin:
Aprilia is an Italian manufacturer with a strong heritage in motorcycle racing, particularly in Grand Prix and off-road disciplines.
Sxv Rxv Lineage:
The SXV/RXV line represented Aprilia's foray into the high-performance supermoto and dual-sport segments, utilizing their powerful V-twin engine technology.
Production Period General:
SXV/RXV models were produced through various iterations from the mid-2000s into the early 2010s.
