PINASCO 'ZUERA ST' 135 cc CYLINDER KIT Ø 57.5 - 8 STUDS - SIDE SPARK PLUG - VESPA ET3

Pinasco Zuera ST aluminum cylinder kit with Nikasil plating for Vespa ET3, designed for sport-oriented tuning on smallframe engines. With Ø57.5 mm bore and 51 mm stroke, it provides a displacement of 135 cc and offers an excellent balance between high performance and reliability.

The cylinder ensures excellent heat dissipation, reduced wear and thermal stability, while the port and exhaust layout delivers strong power output and a responsive engine at mid and high rpm.

The kit features an 8-stud cylinder head with side-mounted spark plug and small exhaust with 54 mm stud spacing, improving combustion efficiency and compatibility with dedicated exhaust systems.

Ideal when combined with a 51 mm stroke crankshaft, larger carburetor, high-performance electronic ignition, reinforced gearing and sport exhaust.

Main features:

• Material: aluminum casting with Nikasil plating

• Displacement: 135 cc

• Bore: Ø 57.5 mm

• Stroke: 51 mm

• Cylinder head: 8 studs with side spark plug

• Exhaust: small flange, 54 mm stud spacing

Products reserved exclusively for competition use in designated venues in accordance with the regulations of the competent sporting authorities. We decline any responsibility for improper use.