Aprilia ETX125 (1997-98)

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The Aprilia ETX 125 is a motorcycle that was produced from 1997 to 1998. It features a two stroke single cylinder engine with laminar suction and separate lubrication, capable of producing 124.8 cc of displacement. The compression ratio is 15.5:1 and it is liquid cooled. The Dell’Orto PHBH 28 carburetor is used for induction while a CDI system is used for ignition. The spark plug used is NGK R BR8 ES and the battery has a capacity of 12V and 4Ah. The generator produces 12V and 180W of power. The motorcycle has a six speed transmission with a final drive chain, gear ratios of 1st 10:30, 2nd 14:29, 3rd 17:27, 4th 19:25, 5th 21:23, and 6th 22:21, a primary ratio of 19:63, and a final ratio of 16:45. The clutch is a multidisc in oil bath and it has a kick-start. The frame is made of single beam, double cradles in high-resistance steel tubes. The transmission oil capacity is 0.6 L or 1.3 US pts, while the two stroke oil capacity is 1.4 L or 3.0 US pts with a reserve of 0.5 L or 1.1 US pts. Overall, the Aprilia ETX 125 is a powerful and sturdy motorcycle that is ideal for those looking for a reliable and durable ride.

Technical specifications:

Make Model: Aprilia ETX 125

Year: 1997 – 98


Engine: Two stroke single cylinder with laminar suction and separate lubrication
Capacity: 124.8 cc / 7.6 cu in
Bore x Stroke: 54 x 54.5 mm
Compression Ratio: 15.5:1
Cooling System: Liquid cooled
Transmission Oil Capacity: 0.6 L / 1.3 US pts
Two Stroke Oil Capacity: 1.4 L / 3.0 US pts
Two Stroke Oil Reserve: 0.5 L / 1.1 US pts
Induction: Dell’Orto PHBH 28 carburetor
Ignition: CDI
Spark Plug: NGK R BR8 ES
Battery: 12V, 4Ah
Generator: 12V – 180W
Starting: Kick
Clutch: Multidisc in oil bath

Transmission: 6 Speed
Final Drive: Chain
Gear Ratios: 1st 10:30 / 2nd 14:29 / 3rd 17:27 / 4th 19:25 / 5th 21:23 / 6th 22:21
Primary Ratio: 19:63
Final Ratio: 16:45
Frame: Single beam, double cradles in high-resistance steel tubes

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