Overview

Black Spider

White Wonder

2025 Aprilia RX 125

Motorcycle

Irresistable, even when pristine

The RX 125 is an authentic Aprilia bike designed for young riders who aren’t afraid to get their hands dirty. With a revamped design, equipment and engine, it’s ready to take you around town or even, if you wish, beyond your standard asphalt roads.

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SX 125 AND RX 125 - TECHNICAL DATA SHEET

ENGINE TYPE

Single-cylinder, 4-stroke, 4-valve, DOHC, liquid cooling

BORE AND STROKE

58 x 47 mm

TOTAL ENGINE CAPACITY

124.2 cc

COMPRESSION RATIO

12.0~12.6 : 1

MAX POWER

11 kW at 10,000 rpm

MAXIMUM TORQUE AT CRANKSHAFT

11.2 Nm at 8,000 rpm

IGNITION

ECU Electronics Magneti Marelli MIUG4 ø 32 mm

STARTING

Electrical

LUBRICATION

Wet sump

TRANSMISSION

6 speed, drive ratio: 1st 11/33 2nd 15/30 3rd 18/27 4th 20/24 5th 25/27 6th 23/22

CLUTCH

Multi plate wet clutch

PRIMARY DRIVE

Straight cut gears, drive ratio: 29/69

FINAL DRIVE

Chain, drive ratio: SX: 13/62 RX: 13/69

CHASSIS

Twin-tube steel frame

FRONT SUSPENSION

Upside down fork with Ø 41 mm stanchions, 240 mm excursion

REAR SUSPENSION

Steel swingarm, monoshock with progressive link system, wheel travel 210 mm

BRAKES

SX: Front: Ø 300 mm stainless steel disc with floating calliper Rear: Ø 220 mm stainless steel disc with floating calliper RX Front: Ø 260 mm disc with floating calliper Rear: Ø 220 mm disc with floating calliper Metal-braided connecting hoses.

WHEELS

SX: Front: 2.5 X 17" rear: 3.5 X 17” RX : Front: 1.85 X 21" rear: 2.15 X 18”

TYRES

SX: Front: 100/80 – 17” rear 130/70 -17” RX : Front: 90/90 – 21” rear 120/80 -18”

DIMENSIONS

Max. length: 2075 mm (RX 2145 mm) Max. width: 820 mm Wheelbase: 1425 mm (1430 mm) Max. height: 1140 mm (RX 1180 mm) Saddle height: 880 mm (RX 905 mm)

WEIGHT

134 Kg (kerb weight with full fuel tank)

CONSUMPTION (WMTC CYCLE)

2.6 l/100 km

CO2 EMISSIONS (WMTC CYCLE)

60 g/km

FUEL TANK CAPACITY

7 litres

HOMOLOGATION

Euro 5

Instrumental panel

Confirming its wish to build advanced motorcycles that are versatile and practical in everyday use, Aprilia has equipped the RX with sophisticated, compact, modern and easy to read digital instruments; in addition to the common functions, the digital dashboard also offers the travel diary, with the ability to view top speed, battery voltage, and with two trip mileometers indicating the distance travelled during riding sessions.

High performance

An engine completely revamped in thermodynamics and electronics, now with the new Marelli MIUG4 control unit. On the road it translates into maximum power developed at a lower rpm, lower fuel consumption, greater responsiveness to throttle control, and ease of management in urban commuting and off-road. There is no doubt: this is a 4-stroke ready to make histor

High-level chassis

RX boasts two fascinating wave discs, 260 mm front and 220 mm rear, clear references to the racing world.