Motorcycle Segment:
Supermoto/Motard, High-Performance Off-Road with Road Legality
Target Audience:
Enthusiast riders and professional mechanics seeking detailed repair and maintenance information.
Competitors:
Competes with other high-performance Italian motorcycles and specialized supermoto brands.
Vehicle Focus:
Powerful V-twin engines, aggressive styling, advanced chassis and suspension for competitive supermoto riding.
Engine Mechanical:
Complete disassembly, inspection, repair, and reassembly of 450cc and 550cc V-twin engines.
Engine Electrical:
Ignition system, starting system, charging system, sensor diagnostics, ECU information, wiring diagrams.
Fuel System:
Fuel injection system (EFI), injectors, fuel pump, pressure regulator, throttle body, fuel tank, lines.
Transmission Drivetrain:
Clutch operation, gearbox internals, shifting mechanism, chain drive, sprocket replacement.
Suspension:
Front fork (upside-down) disassembly, service, and adjustment; rear shock absorber service and adjustment.
Brakes:
Front and rear brake system service, caliper overhaul, pad replacement, hydraulic system bleeding, disc inspection.
Electrical System:
Battery, lighting system, instrumentation, switches, relays, fuses, wiring harness routing and testing.
Frame Chassis:
Frame inspection, steering head bearing service, swingarm maintenance, wheel bearing replacement.
Cooling System:
Radiator, coolant hoses, fan operation, thermostat, coolant specifications and bleeding procedures.
Exhaust System:
Exhaust pipe and muffler inspection, gasket replacement.
Routine Maintenance:
Oil changes, filter replacements, chain adjustment, spark plug replacement, air filter cleaning/replacement.
Troubleshooting:
Diagnostic flowcharts for common symptoms and issues, fault code interpretation.
Engine Rebuild:
Detailed instructions for engine disassembly, inspection of internal components (pistons, rings, valves, crankshaft), and reassembly.
Component Overhaul:
Procedures for overhauling the fuel injection system, braking system, and suspension components.
Electrical Diagnostics:
Step-by-step testing of electrical circuits, sensors, actuators, and the ECU.
Torque Specifications:
Precise torque values for all critical fasteners and engine components.
Depth Level:
Comprehensive (from basic maintenance to complete engine and chassis overhaul).
Diagnostic Capabilities:
Advanced diagnostics including troubleshooting charts and specific problem resolution guides.
Rebuild Procedures:
Full rebuild procedures for engine, transmission, and major chassis components.
Engine Type:
Four-stroke, liquid-cooled, V-twin
Displacement:
449cc (SXV 450) and 549cc (SXV 550)
Bore X Stroke:
450: 90 mm x 70 mm; 550: 95 mm x 76.4 mm
Valve Train:
DOHC, 4 valves per cylinder
Horsepower Estimate:
450: Approx. 55-60 HP; 550: Approx. 65-70 HP (at crank, depending on tuning and model year)
Torque Estimate:
450: Approx. 45-48 Nm; 550: Approx. 55-58 Nm (at crank, depending on tuning and model year)
Fuel Delivery:
Electronic Fuel Injection (EFI) - Keihin or Magneti Marelli systems common.
Ignition System:
Electronic ignition
Oil Capacity:
Refer to manual for exact capacity, typically around 1.5-1.7 liters.
Oil Type:
High-performance motorcycle synthetic oil, SAE 10W-40 or 15W-50 typically recommended.
Length:
Refer to specific model year specifications, but generally compact and aggressive for supermoto.
Width:
Refer to specific model year specifications.
Height:
Refer to specific model year specifications.
Dry Weight:
Approx. 120-130 kg (significantly lightweight for its class)
Wet Weight:
Refer to specific model year specifications, typically 5-10 kg more than dry weight.
Oil Change Interval:
Every 3,000-5,000 km or annually, or more frequently for hard use (check manual for specifics).
Filter Replacement:
Oil filter with every oil change. Air filter cleaning/replacement per manual recommendations (often tied to usage conditions).
Valve Clearance Check:
Typically around 10,000-15,000 km, crucial for V-twin performance.
Chain Maintenance:
Regular cleaning, lubrication, and adjustment, typically every 500-1000 km.
Coolant Type:
Ethylene glycol based antifreeze/coolant mixture (typically 50/50 with distilled water).
Brake Fluid Type:
DOT 4 or DOT 5.1 recommended for high-performance braking systems.
Clutch Fluid Type:
DOT 4 or DOT 5.1 brake fluid (shared with brake system).
Common Wear Items:
Clutch plates, chain and sprockets, brake pads, wheel bearings, fork seals, exhaust gaskets.
Engine Potential Issues:
Can be high-strung; requires meticulous maintenance. Potential for valve guide wear or cam chain tensioner issues if not properly maintained. Early models may have had EFI tuning quirks.
Electrical Potential Issues:
Battery health, stator output, and starter motor reliability can be points of attention.
Brand Origin:
Aprilia is an Italian manufacturer with a strong racing heritage, particularly in smaller displacement categories and Grand Prix racing.
Development Focus:
The SXV series was developed to bring Aprilia's off-road and racing prowess to the supermoto segment, known for its potent V-twin engines and track-focused performance.
Key Innovations:
Often featured early adoption of powerful V-twin technology in the supermoto class and aggressive chassis design.
Production Period:
Mid-2000s to early 2010s (specific production years vary).
Manufacturing Location:
Italy
