The 2006 bike looks like a different motorcycle and is not. The brief is clear that the frame is still the MP frame. What changed is the body, the fork, the brakes, the dash and the way the speedo is driven. The engine is still a Rotax 122 with a Dell’Orto PHBH 28 and a Nippondenso CDI, now under Euro 2 with a catalyst and the secondary air system (SLS).

What you can see

Twin headlights and the sharper RSV-style fairing are the kerbside tell. The dash is digital and takes road speed from a sensor at the rear wheel, not from a spinning drive in the engine cases. That matters when you are chasing a jumpy speedo: the bee-tail fault was the drive, and this generation does not use that drive.

The front brake is a radial caliper, and the hoses are braided. Pads and hoses from an axial bee-tail do not belong here. The brief does not give a pad compound or a banjo torque. Both are To verify in the manual. A parts catalogue PDF for the RS 125 2006–2010 is linked from the sources. OEM numbers on this site stay empty until they are copied out of that catalogue, or a later one, for the specific VIN.

PY0 is the open bike at 21 kW. PYA is 11 kW. The decoder on this site treats model code PY and variant A as PYA, and variant 0 as PY0. Year codes for 2006 and 2007 are not in the brief’s table. ISO 3779 would read them as 6 and 7. To verify on a plate before you trust the decoder’s ISO line.

What carries over, and what is new

The engine complaints are the bee-tail’s: a catalyst that chokes the pipe, the CDI dip around 5–6,000 rpm, a sticking powervalve, crank bearings, and an exhaust that corrodes. The new complaint in the brief is the factory immobiliser and alarm. Owners report trouble with it. There is no bypass procedure on this site. If the bike will not start, read the immobiliser as a suspect alongside the ignition, and use the manual for that PY.

The fork is described as new. Seal sizes and oil weight are To verify. Do not assume the bee-tail seal fits.

Liveries

Lorenzo (2007) is verified from Motorcyclespecs. Pista is 2007 in the generation record, without a separate line in the verification table. Spain’s No.48 is filed here and also sits in a 2007–2009 group whose years are To verify.