Vehicle Segment:
Naked/Scrambler-style motorcycle
Target Audience:
Riders seeking a stylish, practical, and relatively simple motorcycle for urban commuting and light recreational use.
Key Competitors:
Yamaha YBR125, Honda CB125F, Suzuki GS125, Hyosung GT125 (for 125cc variants); potential overlap with entry-level 250cc or 300cc naked bikes depending on regional availability and pricing.
Design Philosophy:
Minimalist, utilitarian design with a retro-modern aesthetic, often featuring a distinctive trellis frame and exposed engine components.
Unique Selling Points:
Distinctive styling, often a lower seat height for accessibility, robust build quality for its class, and a practical user experience.
Engine Systems:
Engine assembly, cylinder head, pistons, crankshaft, valve train, lubrication, cooling, starting, ignition, fuel injection (EFI), carburetor (depending on model variant), exhaust system.
Drivetrain Systems:
Transmission operation, gear shifting mechanisms, clutch operation and adjustment, final drive (chain/belt), lubrication.
Chassis Systems:
Frame construction, suspension (front forks, rear shock absorbers), steering system, wheels, hubs, braking system (discs, calipers, master cylinders, lines), electrical system (wiring diagrams, battery, alternator, starter motor, lighting, indicators, switches).
Maintenance Procedures:
Routine servicing, oil changes, filter replacement, spark plug checks and replacement, chain adjustment and lubrication, brake pad inspection and replacement, fluid level checks and top-offs, air filter cleaning/replacement, battery maintenance.
Repair Procedures:
Engine disassembly and reassembly, transmission overhaul, suspension component replacement, brake system bleeding and component replacement, electrical fault diagnosis and repair, carburetor/EFI adjustment and cleaning, exhaust system repair/replacement.
Troubleshooting:
Diagnostic flowcharts, common problems and solutions, symptom-based troubleshooting guides for engine performance, electrical issues, braking problems, and starting difficulties.
Diagnostic Capabilities:
Advanced diagnostic procedures for EFI models, including sensor testing, actuator checks, and potential ECU troubleshooting guidance. Detailed electrical schematics for fault finding.
Rebuild Scope:
Comprehensive rebuild procedures for major engine components, transmission overhaul, and chassis systems, suitable for skilled mechanics.
Searchability:
Likely text-searchable PDF for ease of use.
Image Resolution:
Expected to be clear for diagrams and illustrations, suitable for printing.
Binding Format:
N/A (Digital PDF Download)
Paper Quality:
N/A (Digital PDF Download)
Engine Type 125Cc:
4-stroke, single-cylinder, SOHC, air-cooled
Displacement 125Cc:
124.8 cc
Bore X Stroke 125Cc:
54.0 mm x 54.5 mm (typical)
Compression Ratio 125Cc:
9.0:1 (typical)
Horsepower 125Cc Approx:
Approx. 10-12 HP @ 8000-9000 RPM (varies by region and specific model year)
Torque 125Cc Approx:
Approx. 9-10 Nm @ 6500-7500 RPM (varies by region and specific model year)
Engine Type 250Cc:
4-stroke, single-cylinder, SOHC, liquid-cooled
Displacement 250Cc:
249.5 cc
Top Speed Approx:
Approx. 100-115 km/h (for 125cc), 120-130 km/h (for 250cc)
Fuel Delivery 125Cc:
Carburetor (e.g., Keihin PZ30 or similar) or EFI depending on market and year
Fuel Delivery 250Cc:
Electronic Fuel Injection (EFI)
Fuel Type:
Unleaded gasoline, minimum 91 RON
Fuel Tank Capacity:
Approximately 9-10 liters
Oil Type Recommendation:
API SG, SH, SJ or higher, JASO MA certified 10W-40 or 20W-50 (check manual for precise spec)
Oil Capacity Approx:
Approx. 1.0 - 1.2 liters (with filter change)
Crash Test Ratings:
N/A (Motorcycles are not typically subjected to the same crash testing standards as cars)
Braking System:
Front disc brake, Rear disc brake (often with braided lines for improved feel and durability)
Optional ABS:
ABS may be available on certain newer models or regional variants.
Lighting:
Halogen headlight, LED taillight and indicators (depending on model year and variant).
Instrument Cluster:
Analog tachometer and speedometer, odometer, trip meter, fuel gauge, indicator lights. Digital clusters on some newer models.
Assistance Features:
Limited; primarily ABS if equipped. No advanced electronic rider aids like traction control on most models.
Connectivity Features:
None standard. USB charging port may be an aftermarket addition or present on specific newer trims.
Initial Service:
First service typically around 1,000 km or 1 month (whichever comes first).
Regular Service Interval:
Every 5,000 km or 6 months (whichever comes first), but check manual for specific intervals for engine oil, filter, air filter, spark plug, and valve clearance.
Engine Oil Viscosity:
10W-40 or 20W-50 (confirm with manual)
Brake Fluid Type:
DOT 4 (confirm with manual)
Coolant Type:
Ethylene glycol-based coolant, 50/50 mix with distilled water (for liquid-cooled models)
Common Wear Items:
Brake pads, chain and sprockets, tires, clutch plates (at higher mileage).
Potential Electrical Gremlins:
Wiring loom integrity, connector corrosion, and charging system performance can sometimes be areas requiring attention on models with extensive mileage or exposure to elements.
Carburetor Vs Efi Maintenance:
Carbureted models may require more frequent cleaning and adjustment than EFI models. EFI systems might require specialized diagnostic tools for advanced issues.
Sachs History:
Sachs is a historic German manufacturer known for its engineering prowess in components like clutches, shock absorbers, and engines, particularly in motorcycles and performance vehicles.
Madass Introduction:
The MadAss was introduced to offer a unique, stylish, and accessible motorcycle. It has seen various iterations and engine sizes over its production run.
Key Updates:
Updates often include engine size variations (125cc to 250cc and larger), fuel injection adoption, cosmetic changes, and suspension improvements.
Manufacturing Locations:
Primarily manufactured in China under contract, with Sachs providing engineering and quality control oversight.
