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Aprilia SX 125 (2025)

Aprilia SX 125

Aprilia SX 125

Short Overview

The Aprilia SX 125 is a lightweight, agile supermoto designed for young or A1-license riders, boasting premium features, a 125cc liquid-cooled engine, and a sporty, stylish setup for both city riding and fun on twisty roads.

Price (On-Road – Ireland)

  • £ 4,280 (new, 2025)

Call/Book Motorcycle

 Contact local dealer or visit: https://www.aprilia.com/gb_EN/models/sx-125/ 

Finance Options

  • Dealer finance available, terms vary. Contact Aprilia Ireland for details.

Colours

Aprilia SX 125

Colours: Cubozoa White, Varanus Black

Aprilia SX 125

Key Highlights

  • 125cc, liquid-cooled, Euro 5+ engine

  • High seat position and lightweight chassis for urban agility

  • 17″ spoke wheels with sports tyres

Bike Specification (Overview)

Aprilia SX 125
  • Engine: Single-cylinder, 4-stroke, liquid-cooled, DOHC, 4-valve

  • Transmission: 6-speed manual

  • Mileage: ~80 mpg (claimed/owner-reported)

  • Power: 15 HP (11 kW) @ 10,500 rpm

  • Brakes: Front 300 mm disc (2-piston caliper), rear 220 mm disc

  • Braking System: ABS (front only / Bosch 9.1ML)

  • Ground Clearance: Approx. 260 mm

  • Fuel Capacity: 7 litres

  • Seat Height: 880 mm

  • Kerb Weight: 134 kg

  • Wheels: 17″ spoked wheels
Aprilia SX 125

Bike Summary

The Aprilia SX 125 stands out as a top-tier choice in the 125cc supermoto segment, blending Italian design, category-leading performance, and a comfortable, upright riding stance. It’s ideal for learners and urban riders seeking style and thrill on a lightweight platform.

Full Technical Details Table

Engine & Performance

  • Engine type: 1-cylinder, 4-stroke, liquid-cooled, 4-valve, DOHC

 

  • Displacement: 124.2 cc

 

  • Max Power: 15 HP (11 kW) @ 10,500 rpm

 

  • Max Torque: 11.5 Nm @ 8,500 rpm

 

  • Top Speed: ~100 km/h (est.)

 

  • Mileage (claimed): ~80 mpg / 34 km/litre

 

  • Mileage – Owner Reported: ~30-34 km/litre

 

  • Transmission: 6-speed manual

 

  • Gear Shift Pattern: 1 down, 5 up

 

  • Clutch: Wet multi-plate

 

  • Riding Range: Not specified

 

  • Riding Modes: Standard

 

  • Cylinders: 1

 

  • Valves per Cylinder: 4

 

  • Cooling System: Liquid-cooled

 

  • Bore x Stroke: 58 x 47 mm

 

  • Compression Ratio: Not specified

 

  • Spark Plugs: 1

 

  • Battery: 12V, maintenance-free

 

  • Fuel System / Fuel Delivery: Electronic fuel injection

 

  • Emission Standard: Euro 5+

 

  • Fuel Type: Petrol

Brakes & Wheels

  • Braking System: Bosch dual-channel ABS with anti-rollover

  • Front Brake: 300 mm disc, 2-piston floating caliper

  • Rear Brake: 220 mm disc, single-piston floating caliper

  • Wheel Type: Spoked

  • Front Wheel Size: 17″

  • Rear Wheel Size: 17″

  • Front Tyre: 100/80-17

  • Rear Tyre: 130/70-17

  • Tyre Type: Tubed (cross-check for updates on latest model)

  • Front Tyre Pressure (Rider): 1.9 bar

  • Rear Tyre Pressure (Rider): 2.0 bar

  • Rider & Pillion pressures: 2.0 bar front, 2.2 bar rear (approx.; verify owner’s manual)

Suspensions & Chassis

  • Front Suspension: 41 mm upside-down telescopic fork, 240 mm travel

  • Rear Suspension: Monoshock, 210 mm travel

  • Front Suspension Preload Adjuster: No

  • Rear Suspension Preload Adjuster: Yes

  • Chassis Type: Steel perimeter frame

Dimensions

  • Kerb Weight: 134 kg

  • Seat Height: 880 mm

  • Seat Length: N/A

  • Ground Clearance: ~260 mm

  • Fuel Tank Capacity: 6.2 litres

  • Reserve Fuel Capacity: N/A

  • Overall Length: 2075 mm

  • Overall Width: 820 mm

  • Overall Height: 1140 mm

  • Wheelbase: 1425 mm

Manufacturer Warranty

  • Standard Warranty: 2 years unlimited mileage (varies; check with dealer)

  • Standard Warranty (in Km): Unlimited

Service & Maintenance Schedule

  • Service & Maintenance Schedule: Per dealer
Aprilia SX 125

Features

Instrument Cluster

  • Instrument Console: Digital LCD, colour display (2025)

  • Touch Screen Display: No

  • Display Size: N/A

  • Digital Display Type: LCD, colour (2025)

  • Brightness Control: No

  • GPS & Navigation: No

  • Real Time Mileage Indicator: No

  • Average Fuel Consumption: No

  • Speedometer / Odometer / Fuel Gauge / DTE: Yes/Yes/No/No

  • Mobile Phone Connectivity: No

  • Tripmeter Type: Digital

  • No. of Tripmeters: 2

  • Tachometer: Yes (digital)

  • Stand Alarm: No

  • Gear Indicator: Yes

  • Low Battery / Fuel / Oil Indicator: Yes/No/Yes

  • Service Reminder Indicator: Yes

  • Hazard Warning / High Beam / Temperature / Malfunction Indicators: Yes

  • Average Speed: No

  • Call/SMS Alerts: No

  • Clock: Yes

Safety & Convenience

  • USB Charging Port: Optional (under seat)

  • Quickshifter: No

  • Traction Control: No

  • Cruise Control: No

  • Start Type: Electric start

  • Exhaust Heat Shield: Yes

  • Kill Switch: Yes

Mobile App Monitoring

  • Vehicle Location Tracking: No

  • Geo Fencing: No

Lights

  • Headlight Type: Full LED

  • DRLs: Yes (LED)

  • Brake/Tail Light: LED

  • Hazard Warning Lights: Yes

  • Shift Light: No

  • Pass Light: Yes

  • Turn Signal: LED

Seat & Storage

  • Under Seat Storage (Litres): Minimal (tools only)

  • Pillion Seat: Yes

  • Pillion Footrest: Yes

  • Pillion Grab Rail: Yes

Additional Features

  • Compact, aggressive design with matt-black exhaust cover

  • Wide handlebars, upright seating position

  • Optional accessories available
Aprilia SX 125

User Review

The Aprilia SX 125 offers an exciting, nimble ride and true supermoto styling, ideal for city use and new riders, though its firm seat and relatively basic digital dash may feel limiting for long-distance comfort or tech fans. Reliability is rated average; finish is decent if maintained but build quality is not at Japanese bike standards.

[For the latest offers and test rides, visit your nearest Aprilia Ireland dealer or Aprilia Ireland’s website.]

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