Generations
- Four generations, 1993 to 2006.
- Body, engine and carburettor change. Read the casting.
- A 122 and a 123 do not share parts.
1993 – 2006
Four generations, 1993 to 2006.
Years overlap because the sources date some bikes by build and some by registration, and because Italy changed engines before the UK did. Factory codes are the ones the brief takes from the VIN. Each calendar year is on the year-by-year list.
GS. Sport Pro is LA. Rotax 123. Dell'Orto VHSB 34
02 · 1995/96–1998Round-light RS 125Late GS, MP0 / MP01, MPA0, MPA1 Rotax 123 for most of Europe and the UK until about 1997–98, or Rotax 122 in Italy from 1995. Dell'Orto VHSB 34 on the 123, or PHBH 28 on the 122
03 · 1999–2005Bee-tailMPB (1999–2002), SF (2003–2005) Rotax 122. Dell'Orto PHBH 28
04 · 2006RSV-stylePY0 open, PYA 11 kW Rotax 122. Dell'Orto PHBH 28
Across the two-strokes
MCN’s maintenance guide, as recorded in the brief, says piston rings around every 5,500 miles, piston and barrel around every 10,000 miles, a warm-up to 60°C before hard riding, and a premium two-stroke oil.
Replicas and special editions
Per Hartrusion, as recorded in the research brief, “Replica” means the decal scheme. The mechanical bike is the standard model of that year and code.
| Livery | Years | Generation | Status |
|---|---|---|---|
| Loris Reggiani | 1995 decal set | Extrema / GS | Verified |
| Telaio Lucido | 1994 | Extrema / GS | Listed as the polished-frame edition. No separate line in the verification table. |
| Sport Pro | Extrema / GS years | Extrema / GS | Listed as the LA Sport Pro, not as a decal replica. |
| Max Biaggi Chesterfield | 1995–1996 | Round-light RS 125 | Verified |
| Doriano Romboni | 1996 | Round-light RS 125 | Verified (one source) |
| Racing Silver | 1996–1997 | Round-light RS 125 | Listed in the generation record. No separate line in the verification table. |
| Tetsuya Harada | 1998–2000 | Round-light RS 125, Bee-tail | Verified |
| Valentino Rossi | 1998 and 1999 | Round-light RS 125, Bee-tail | Verified |
| Diablo Black | 2001 | Bee-tail | Listed in the generation record. No separate line in the verification table. |
| GP-One / GP1 and SBK | 2003 | Bee-tail | Verified |
| Manuel Poggiali | 2004–2005 | Bee-tail | Verified |
| Marco Melandri | Bee-tail era | Bee-tail | Year to verify To verify |
| Loris Capirossi | Unknown | Not assigned | Not verified To verify |
Sources named in the brief: rs125.it, Decalmoto, Motorcyclespecs, 2strokebuzz. 2strokebuzz has no URL in the brief, so it is not linked.