Segment:
Entry-level sport motorcycle / Lightweight supersport
Target Audience:
Young riders, commuters, track day enthusiasts seeking a nimble and sporty experience
Key Competitors:
Yamaha YZF-R125, Honda CBR125R, Kawasaki Ninja 125 (though RS50 is 50cc, it competes in the entry-level sporty feel)
Styling:
Aggressive, race-inspired supersport styling mimicking larger Aprilia motorcycles
Performance Focus:
Emphasis on agile handling and spirited performance for its class
Engineering:
Italian engineering heritage known for sporty chassis and engine characteristics
Primary Focus:
Comprehensive repair, maintenance, and troubleshooting
Secondary Focus:
Technical specifications, diagnostics, and component overhaul
Estimated Pages:
Approx. 250-400 (variable based on specific year/version)
Type:
Workshop Manual / Service Manual
Language:
English (typical for this market)
Format:
Likely Digital (PDF) or Printed Booklet
Engine:
Detailed disassembly, assembly, tuning, and troubleshooting of the 2-stroke engine
Fuel System:
Carburetor adjustment, cleaning, and servicing; fuel pump operation
Ignition System:
CDI unit, spark plug, ignition timing, and troubleshooting
Cooling System:
Radiator, water pump, thermostat, coolant specifications, and bleeding procedures
Transmission:
Gearbox disassembly, assembly, lubrication, and shift mechanism
Clutch:
Clutch operation, adjustment, and component replacement (e.g., clutch plates)
Brakes:
Hydraulic brake system maintenance, fluid replacement, pad/disc inspection and replacement
Suspension:
Front fork (telescopic) servicing, rear shock absorber inspection and replacement
Steering:
Handlebar, steering head bearings, and troubleshooting
Electrical System:
Wiring diagrams, battery maintenance, lighting, starting system, and charging system
Frame And Bodywork:
Chassis inspection, fairing removal/installation, and component mounting
Maintenance:
Routine checks, oil changes, filter replacements, chain adjustment, spark plug checks
Troubleshooting:
Diagnostic flowcharts for common starting, running, and electrical issues
Repair:
Detailed step-by-step instructions for component removal, repair, and reinstallation
Overhaul:
Complete engine rebuild procedures, including piston, cylinder, and crankshaft service
Adjustment:
Carburetor jetting, clutch lever free play, brake lever free play, chain tension
Diagnostic Level:
Advanced diagnostics, including electrical system tracing and engine performance analysis
Rebuild Scope:
Complete engine, gearbox, and suspension component rebuilds
Specification Detail:
Precise torque values, clearances, fluid capacities, and wear limits
Digital Format:
PDF (Searchable, Bookmarked, Printable)
Print Quality:
High-resolution images and clear text (if printed)
Binding:
Spiral-bound or Perfect-bound (for printed versions)
Paper Quality:
Durable, workshop-grade paper (for printed versions)
Engine Type:
Liquid-cooled, 2-stroke, single-cylinder
Displacement:
49.7 cc (approx.)
Bore X Stroke:
39.5 mm x 40.5 mm (typical)
Power Output:
Varies by market regulations, typically around 8-15 HP (homologated)
Torque Output:
Varies by market regulations, typically around 5-9 Nm
Compression Ratio:
Approx. 8.5:1 to 10.5:1 (depending on variant)
Carburetor Type:
Dell'Orto PHBN 16 / PHVA 17.5 (common)
Fuel Type:
Unleaded gasoline (95 RON recommended)
Fuel Delivery:
Carburetor, Automatic Oil Injection for 2-stroke oil
Ignition System Type:
Electronic ignition (CDI)
Starting System:
Electric starter and kick starter
Cooling Method:
Liquid-cooled
Transmission Type:
6-speed manual
Optional Transmission:
N/A (standard for this model)
Clutch Type:
Wet, multi-plate, cable-actuated
Gear Ratios:
Refer to manual for specific ratios (e.g., 1st: 3.000, 2nd: 1.941, 3rd: 1.333, 4th: 1.050, 5th: 0.900, 6th: 0.777)
Safety Standard:
Meets A1 license requirements in many European countries
Braking System:
Hydraulic disc brakes front and rear
Tire Specification:
Front: 100/80-17, Rear: 130/70-17 (typical)
Lighting:
Halogen headlight, LED taillight, turn signals
Frame Construction:
Aluminum twin-spar frame for rigidity and light weight
Dashboard:
Analog tachometer, digital speedometer, odometer, trip meter, coolant temperature gauge, clock.
ABS:
Optional ABS on later models or specific markets.
Connectivity Features:
N/A (basic motorcycle instrumentation).
Oil Change Interval:
Refer to manual; typically every 3,000-5,000 km or annually. Engine oil for gearbox lubrication needs periodic checks/changes.
Spark Plug Interval:
Check every 2,000 km, replace as needed (refer to manual for type and gap)
Air Filter Cleaning:
Check every 3,000 km, clean or replace as needed
Chain Maintenance:
Lubricate and adjust chain tension every 500-1000 km
Gearbox Oil Type:
SAE 75W/90 Synthetic Gear Oil (e.g., Motul Gear 300 75W90)
Brake Fluid Type:
DOT 4 Hydraulic Brake Fluid
Coolant Type:
Ethylene glycol-based antifreeze coolant (50/50 mix with distilled water)
2 Stroke Oil Type:
High-quality JASO FD or API TC certified 2-stroke synthetic oil
Carburetor Clogging:
Can be prone to clogging if fuel is left stagnant or is of poor quality.
2 Stroke Top End Wear:
Like all 2-strokes, regular maintenance of piston rings and cylinder is crucial for longevity.
Electrical Connector Corrosion:
Can occur in humid or salty environments if not properly maintained.
Exhaust Flaps Sticking:
Power valve (on some models) can seize due to carbon buildup.
Brand Focus:
Aprilia is renowned for its racing pedigree and sporty motorcycle development.
Rs50 Lineage:
The RS50 has been a staple in Aprilia's lightweight sportbike lineup, evolving with design and technology updates over its production run.
Key Generations:
Multiple generations exist, often characterized by styling changes and minor mechanical revisions (e.g., carburetor updates, emissions controls).
Production Years:
From the late 1990s to the present, with updates across various models.
Manufacturing Location:
Italy
Awards General:
While not typically receiving major automotive awards like cars, the RS50 is recognized for its authentic sportbike styling and engaging riding experience in the 50cc segment.
Reliability Ratings:
Generally considered reliable when properly maintained, with a strong community supporting parts and knowledge.
Emissions Compliance:
Meets Euro emission standards for its production era, often managed via carburetor tuning and exhaust systems.
