125-177cc tuning is very thankful and reliable.
With 11 KW, the SERIE PRO kit stretches the HP category on the A1 driving license to its limit. It is also the only kit that is officially approved by the TÜV (German Ministry of Transport). With a little over 10 PS, the D.R. kit is a very good ROAD kit. The POLINI kit increases the performance from the original approx 6 HP to approx. 12 PS. The gear cog with 22 teeth transmits the higher revs into speed. Both kits are 'plug&play' tuning kits and do not involve changing the engine case. The kits for the 2 transfer ports come with a modified racing cylinder with matching cylinder base spacer. With the kits for the Vespa PX125-200 E Lusso`95->/`98/MY/`11/Cosa 2 models, the COSA 2 clutch gear wheel / friction plates are also included. The carburettors also come with separate lubrication.
ROAD KIT SERIE PRO 125cc: racing cylinder SERIE PRO 125cc with cylinder head and high-tech piston, carburettor DELL`ORTO SI 26 with separate lubrication and venturi air filter, EM racing exhaust German TÜV approval, spark plug, 3 main jets
ROAD KIT D.R: 177cc: racing cylinder D.R. 177cc, carburettor DELL`ORTO SI 24.24E from PX200 with/without separate lubrication, racing exhaust SIP ROAD, clutch gear cog 22 teeth Ø 96mm/COSA 2, spark plug, air filter SI PX200, 3 main jets, throttle slide, clutch nut/cage, ignition timing approx. 19°
SPORT KIT POLINI 177cc: racing cylinder POLINI 177cc, carburettor DELL`ORTO SI 24.24E from PX200 with/without separate lubrication, racing exhaust SIP ROAD, clutch gear cog 22 teeth Ø 96mm/COSA 2, clutch plates MALOSSI/NEWFREN, spark plug, air intake system POLINI, 3 main jets, throttle slide, clutch nut/cage, ignition timing approx. 19°
SIP-TIP: A lighter SIP flywheel or a VESPATRONIC/PARMAKIT ignition are also recommended. An Italian/English racing exhaust, a racing crankshaft, a bigger carburettor, GRAND-SPORT piston and MMW cylinder head are the next steps.