Thermal group PINASCO 26031810 RACING ZUERA-X54 155 cc VESPA 50 125 SPRING ET3 PK NLR SPECIAL ETS

Developed on the racetrack, the Zuera X cylinder kit is the most powerful of the 60mm range of the Pinasco catalog. The exhaust and intake diagrams have been designed to have the right compromise between maximum torque and maximum power, allowing the engine to push in any operating condition without holes in delivery and shortcomings. The central spark plug head with 8 studs guarantees maximum performance and prevents deformation of the sealing surfaces. The new Zuera X cylinder kit is exceptional for those who want the most from a cylinder for racing use. Given the high performance and the non-standard porting, the Zuera X can be easily mounted on Pinasco or similar crankcases, but requires mechanical processing and abundant welding on Piaggio crankcases. Technical Data Sheet: Material: Aluminum Bore: 60mm Stroke: 54mm Displacement: 155cc Head: Central Bore Squish: 0.9-1.1mm Piston: Stamped Aluminum with single steel ring Muffler: 62mm exhaust flange (Big Bore) Spark Plug: NGK BR8HS Advance: 19° 2500rpm (Original) 24° 2500rpm (Flytech) Applications: Vespa ETS 125, Vespa ET3 125, Vespa PK 125, Vespa PK XL 125, Vespa Primavera 125, Vespa Nuova 125, Ape 50 Transformation 125.