177cc Vespone RB Thermal Group

- Aluminum casting with NiCaSil galvanic coating - Displacement 177cc - Bore 63mm - Stroke 57mm - Central spark plug head 8 studs - Exhaust with Booster Applications: Vespa TS 125, Vespa PX 125, Vespa PX 125 euro 1, Vespa PX 125 euro 2, Vespa PX 125 euro 3, Vespa PX 150, Vespa PX 150 euro 1, Vespa PX 150 euro 2, Vespa PX 150 euro 3, Vespa PX 80, Vespa Cosa 125, Vespa Cosa 150, Star 125 2T, Star 150 2T, Vespa PX 125 / 150 Racing tuning.