The SXV 450, RXV 450, SXV 550, and RXV 550 models from 2010 represent a pinnacle of performance in the dual-sport and supermoto segments. Powered by potent liquid-cooled, V-twin engines with displacements of 449.8 cc or 549.4 cc, these motorcycles offer impressive horsepower and torque, catering to enthusiast riders who demand versatility and cutting-edge engineering. An Italian manufacturer with a rich racing heritage, has infused these machines with a focus on agility, control, and a thrilling riding experience, making them stand out in a competitive market. This comprehensive factory service repair manual provides complete guidance for the maintenance and repair of your SXV/RXV 450 and 550 models. Covering all essential systems, including the engine, fuel, ignition, cooling, transmission, frame, suspension, brakes, and electrical components, this manual details routine maintenance, troubleshooting procedures, and in-depth repair instructions. With hundreds of pages of information, including technical specifications, torque values, and disassembly/reassembly guides, it serves as an indispensable resource for owners and technicians alike to ensure the optimal performance and longevity of these high-performance motorcycles. 🏷️ Basic Information Identification Make: Aprilia Model: SXV 450 / RXV 450 / SXV 550 / RXV 550 Year: 2010 Codes Model Code 450: A0221 (SXV/RXV 450) Model Code 550: A0220 (SXV/RXV 550) 👋 Introduction Market Position Market Segment: High-performance supermoto and enduro motorcycles. Competitive Analysis Key Competitors: KTM EXC/SMR series, Husqvarna SM/TE series, Beta RR series. Key Features Vehicle Type: Dual-sport/Supermoto Target Audience: Enthusiast riders seeking performance and versatility, requiring detailed technical support. 📋 Manual Details Coverage Areas Coverage Scope: Complete factory service and repair Page Count Estimated Page Count: Hundreds Manual Type Manual Type: Factory Service Repair Manual Language Language: English (Typical for Aprilia factory manuals) Format Format: PDF Download 📖 Manual Coverage Systems Covered 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. Procedures Included 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. Technical Depth Depth Of Information: Comprehensive, from basic checks to full engine rebuilds and electrical system diagnostics. 📊 Manual Specifications File Format File Format Detail: Digital PDF, allows for searching and selective printing. Print Quality Print Quality Recommendation: High resolution for clear diagrams and text; printable for workshop use. Binding Type Binding Type For Print: Spiral-bound or three-ring binder recommended for lay-flat use. Paper Type Paper Type For Print: Heavy-duty, laminated paper recommended for durability in a workshop environment. ⚙️ Engine Specifications Primary Engine 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 Performance 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 System Fuel Delivery: Electronic Fuel Injection (EFI) - Keihin throttle bodies Fuel Type: Unleaded gasoline, minimum 95 octane recommended 🔧 Transmission Standard Transmission Type: 6-speed sequential manual Features Clutch Type: Hydraulic wet multi-plate clutch Final Drive: Chain drive 📐 Dimensions Weights Dry Weight 450 Approx: Approx. 134 kg (295 lbs) Dry Weight 550 Approx: Approx. 136 kg (300 lbs) Fuel Tank Capacity: 7.5 Liters (1.98 US gal) 🛡️ Safety Features Ratings Safety Rating Context: As a performance motorcycle, formal crash safety ratings like automobiles are not applicable. Focus is on rider active safety systems. Active Features 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. Passive Features Frame Design: Trellis frame and high-quality suspension components contribute to...