Every RS125, in one place.

Four generations, 1993 to 2006.
Thirteen restoration guides. Gaps stay marked To verify.
A 122 and a 123 do not share parts.

Identify your bike Specs and torque Restoration guides Buying guide UK law and import Send a note

Workshop record · 1993 – 2006

Every RS125, in one place.

The English-language record of the Aprilia RS125 two-stroke, from the 1993 Extrema and GS to the 2006 RSV-style bike. Generations, identification, a 13-part restoration, and the UK rules for riding and importing one. If a figure is not sourced, it is markedTo verify and left blank.

Identify your bike Start the restoration

4Generations, 1993 to 2006

13Restoration guides, with the holes left visible

2Rotax engines that do not share parts

0Invented torque figures, jet charts or prices

Generations

Four generations, 1993 to 2006

Open the hub

01 · 1993–1995

Extrema / GS

Rotax 123

02 · 1995/96–1998

Round-light RS 125

Rotax 123 for most of Europe and the UK until about 1997–98, or Rotax 122 in Italy from 1995

03 · 1999–2005

Bee-tail

Rotax 122

04 · 2006

RSV-style

Rotax 122

Start with the job you actually have

01I don’t know which one this is

Frame number, engine casting, carburettor. 1998 can be either Rotax.

02I’m about to buy one

Ten checks, the red flags by generation, and no made-up prices.

03I’m taking one apart

Thirteen guides. Torque the manual prints is on the specs pages.

04I need a figure

Type 122 and Type 123 sizes, jetting and torque. Check them on your bike.

05Something keeps going wrong

Sourced fixes for the valve, the oil pump, the jets and the charging system.

06I want to change it

The 34 mm carb on a 122, pipes and the other sourced upgrades.

07I want the whole map

Every generation, year, guide and spec page, in one list.

Contents

The restoration, in order

UK law and import