🏷️ Basic Information Identification Make: Aprilia Model: RS125 Year: 2011 Engine Type: 2-stroke, single-cylinder Engine Displacement: 125cc Market Segment: Lightweight Sportbike Codes Chassis Code: RP (indicative, may vary by region) 👋 Introduction Market Position Positioning: The Aprilia RS125 is a popular and high-performance 125cc sportbike, often considered a gateway to larger Aprilia models and a significant competitor in its class. Competitive Analysis Competitors: Competes with other 125cc sportbikes from manufacturers like Yamaha (YZF-R125), Honda (CBR125R), and KTM (RC 125). Key Features Appeal: Known for its aggressive styling, sharp handling, and potent 2-stroke engine performance, offering a thrilling riding experience. Manual Value Value Proposition: This manual provides comprehensive, factory-level information essential for owners and technicians to maintain, diagnose, and repair the Aprilia RS125, saving significant costs. 📋 Manual Details Coverage Areas Applicable Models: All Aprilia RS125 RS 125 2011 Models/Engines/Trim/Transmissions Types Page Count Estimated Pages: Hundreds Manual Type Type: Workshop Repair Service Manual Language Language: English Format File Format: PDF Delivery Method: Instant Download 📖 Manual Coverage Systems Covered Engine: Top End, Lubrication System, Cooling System, Engine Removal/Installation Fuel: Fuel System Drivetrain: Clutch, Crankshaft, Transmission, Final Drive Chassis: Wheels/Tires, Brakes, Suspension, Steering, Frame Electrical: Electrical System, Wiring Diagrams General: General Information, Appendix Procedures Included Maintenance: Scheduled Maintenance, Fluid Changes, Filter Replacements Troubleshooting: Diagnostic Procedures, Symptom-Based Troubleshooting Repair: Disassembly, Assembly, Component Repair, Reassembly Diagnostics: Detailed Diagnostic Information Technical Depth Depth: Comprehensive Diagnostic, Repair, and Maintenance Information for Professional Technicians Detail Level: Detailed substeps, notes, cautions, warnings, numbered instructions, figure numbers, detailed illustrations, drawings, photos, enlarged insets 📊 Manual Specifications File Format Quality: High Quality PDF Print Quality Printability: Full Printable Zoom Capability: Zoom IN/OUT Binding Type Binding: Digital (PDF) Paper Type Paper Type: N/A (Digital Format) Requirements Software: Adobe PDF Reader, WinZip Compatibility: All Versions of Windows & Mac ⚙️ Engine Specifications Primary Engine Engine Description: Liquid-cooled, 2-stroke, single-cylinder Rotax engine with reed valve induction. Bore X Stroke: 54 mm x 54.5 mm (typical for this generation) Compression Ratio: Approx. 11.5:1 (may vary) Ignition: Electronic ignition with variable advance Performance Horsepower Output: Approximately 30-34 HP (EU homologation, can vary by market and tuning) Torque Output: Specifications vary, but typically around 20-22 Nm Fuel System Carburetor: Dell'Orto VHST 28mm (or similar performance carburetor) Fuel Type: Unleaded gasoline, minimum 95 RON Oil System: Automatic oil injection system for 2-stroke oil Cooling System Cooling Type: Liquid-cooled Coolant Type: Ethylene glycol-based coolant mixture (e.g., 50% water, 50% coolant) 🔧 Transmission Standard Type: 6-speed constant mesh sequential gearbox Optional Options: N/A (Standard 6-speed) Features Clutch: Wet multi-plate clutch Final Drive: Chain drive 📐 Dimensions Exterior Length: Approximately 2000 mm (may vary slightly) Width: Approximately 740 mm (may vary slightly) Height: Approximately 1150 mm (may vary slightly) Weights Dry Weight: Approximately 135 kg (may vary) Wet Weight: Approximately 155 kg (fully fueled, may vary) 🛡️ Safety Features Ratings Safety Features: Standard safety features include disc brakes, but specific crash test ratings are not typically published for this class of motorcycle. Active Features Braking System: Front: Dual piston caliper with 320mm disc. Rear: Single piston caliper with 220mm disc. Passive Features Lighting: Halogen headlight, LED taillight 💡 Technology Features Infotainment Features: Basic analog tachometer and speedometer, with a small LCD for odometer and trip meter. Driver Assistance Features: None (motorcycle of this era). Connectivity Features: None (motorcycle of this era). 🔧 Maintenance Service Intervals Oil Change: Refer to manual for specific interval (typically based on mileage or operating hours). Spark Plug Replacement: Refer to manual for specific interval (e.g., 6,000-10,000 km). Air Filter Cleaning: Regular inspection and cleaning/replacement as per manual recommendations. 2-Stroke Oil Level: Regular checks and replenishment of 2-stroke oil reservoir. Fluid Specifications Engine Oil: 2-stroke semi-synthetic or fully synthetic oil specifically formulated for high-performance 2-stroke engines (e.g., Motul 7100 2T, Castrol Power 1 Racing 2T). Brake Fluid: DOT 4 brake fluid. Coolant: Ethylene glycol-based coolant (50% coolant/50% distilled water). Gearbox Oil: Refer to manual for specific gearbox oil grade and capacity (typically a SAE 75W/80 or 10W/40 transmission oil). Known Issues Common Issues: Potential issues include carburetor jetting inconsistencies, wear on the 2-stroke power valve, and normal wear and tear on high-performance components. Proper maintenance is key to longevity. 📚 Vehicle History Brand Heritage Heritage: Aprilia has a rich racing heritage, particularly in smaller displacement categories, which influences the design and performance of models like the RS125. Model Evolution Evolution: The RS125 has been produced for many years, undergoing various updates in styling, engine technology (from carburetor to fuel injection in later models), and components. The 2011 model represents a refined iteration of the classic 2-stroke design. Production Manufacturing: Typically manufactured in Italy. 🏆 Awards & Recognition Recognitions Reputation: The Aprilia RS125 has a long-standing reputation as a class-leading 125cc sportbike, often praised for its performance and handling characteristics among enthusiasts and in motorcycle media.