Target Audience:
Urban commuters and touring riders seeking a large-wheel scooter with motorcycle-like handling
Segment:
Premium mid-to-large displacement scooter
Key Advantage:
Large-diameter wheels (approximately 15-inch) delivering stability and handling closer to a motorcycle than conventional small-wheel scooters
Main Competitors:
Piaggio X8/X9, Honda SH series, Yamaha X-Max
Platform Sharing:
Built on Piaggio Group engineering with the Gilera sporting character
Wheels:
Large-diameter alloy wheels for improved road holding
Braking:
Disc brakes front and rear with combined braking on higher-spec models
Storage:
Under-seat storage compartment
Instrumentation:
Full analog/digital instrument panel
Coverage Areas:
Engine, fuel injection, transmission (CVT), brakes, suspension, electrical, bodywork, chassis
Manual Type:
Service Repair Workshop Manual
Delivery:
Instant digital download
Compatibility:
Windows, Mac, tablets and smartphones with a PDF reader
Printable:
Yes, pages can be printed as needed
Engine:
Complete teardown, inspection, rebuild and reassembly procedures
Fuel Injection:
EFI system diagnostics, sensor testing, throttle body service
CVT Transmission:
Belt, roller weight, drive and driven pulley inspection and replacement
Cooling System:
Radiator, thermostat, coolant pump service and testing
Lubrication:
Oil circuit, pump and pressure testing
Electrical System:
Wiring diagrams, charging system, starter system, lighting
Ignition System:
Component testing and troubleshooting
Brakes:
Front and rear disc brake service, caliper and master cylinder rebuild
Wheels and Tires:
Removal, inspection, balancing and tire service
Suspension:
Front fork and rear shock service procedures
Steering:
Steering column and bearing service
Frame and Bodywork:
Panel removal, refitting and adjustment
Scheduled Maintenance:
Service intervals, torque specifications, fluid capacities
Diagnostics:
Fault-finding charts and troubleshooting tables
Special Tools:
Required special tool listings and usage
Torque Specs:
Fastener tightening values throughout
Exploded Diagrams:
Component breakdown illustrations for assembly
Detail Level:
Written for professional technicians and experienced DIY owners
Instructions:
Step-by-step procedures with specifications and tolerances
Parts Lists:
Component identification within exploded views
Fitting Guidance:
Correct installation and adjustment procedures included
File Format:
PDF (searchable, bookmarked, zoomable)
Compatibility:
Windows, macOS, Linux, iOS, and Android — any device with a PDF reader
Requirements:
A PDF reader application (e.g. Adobe Acrobat Reader, free)
Searchability:
Fully text searchable for fast lookup of any topic
Print Quality:
High-resolution digital pages, printable at full clarity
Binding Type:
N/A — digital download, no physical binding
Paper Type:
N/A — digital download, no physical paper
Nexus 125:
124cc liquid-cooled 4-stroke single cylinder, 4-valve, electronic fuel injection
Nexus 250:
Approximately 244cc liquid-cooled 4-stroke single cylinder, 4-valve, EFI (Quasar-type engine)
Nexus 500:
Approximately 460cc liquid-cooled 4-stroke single cylinder, 4-valve, EFI (MASTER engine)
Fuel Delivery:
Electronic fuel injection (EFI)
Fuel Type:
Unleaded gasoline
Exact Power Figures:
N/A - not specified in this manual listing
Cooling:
Liquid cooled with electric fan
Standard Transmission:
Automatic CVT (continuously variable transmission)
Final Drive:
Centrifugal clutch with belt drive and gear reduction
Features:
Twist-and-go operation, no manual clutch or gear shifting
Manual Content:
CVT belt, roller and pulley service procedures included
Wheelbase:
N/A - verify exact figure in the manual specification tables
Overall Length:
N/A - verify exact figure in the manual specification tables
Wheel Size:
Large-diameter wheels, approximately 15 inches
Curb Weight:
N/A - varies by engine variant; consult manual tables
Brakes:
Disc brakes front and rear
Braking System:
Combined/integrated braking on higher-spec versions
Ignition Lock:
Steering lock integrated with ignition switch
Wheel Lock:
Optional accessory wheel/electronic anti-theft device
Crash Test Rating:
N/A - scooters of this class are not crash tested by Euro NCAP
Engine Oil:
Change at first service and regularly per scheduled maintenance table
Gear Oil:
Replace at specified transmission oil change intervals
CVT Components:
Inspect drive belt and rollers at regular service intervals
Valve Clearance:
Check at periodic service intervals
Coolant:
Replace per long-term maintenance schedule
Engine Oil:
SAE 5W-40 or equivalent API SL/SH 4-stroke oil per manual specification
Gear Oil:
Hypoid gear oil SAE 80W-90 or per manual specification
Coolant:
Long-life ethylene glycol-based coolant, permanent type
CVT Belt:
Regular wear item - inspect and replace per interval
Roller Weights:
Wear with mileage, causing RPM changes
Brake Pads:
Front and rear pad wear inspection at each service
Air Filter:
Periodic cleaning or replacement
Manufacturer:
Gilera, an Italian marque founded in Arcore, Italy in 1909 by Giuseppe Gilera
Group:
Part of the Piaggio Group since 1969
Introduction:
Nexus launched in 2005 as Gilera's large-wheel maxi-scooter
Variants:
Offered in 125cc, 250cc and 500cc engine displacements
Positioning:
Sport-styled large-wheel scooter alongside the Piaggio X-series
Production Location:
Manufactured by Piaggio Group in Italy
Production Run:
2005 onwards