Cilindro VMC CRONO 187cc mod.Stelvio corsa 60mm e diametro 63mm

ATTENTION:Needs crankshaft with connecting rod 110 Diameter 63 mm Stroke 60 mm Piston meteor CNC machined head from billet High performance cylinder. The most suitable diagram stages for best performance and reliability are: Secondary ports: 120° Exhaust: 178° Air gap/squish: 1.3 mm Compression ratio: 10.9:1 To achieve these stages, a 1.25/1.3 mm gasket/plate pack at the base of the cylinder is generally sufficient. Lowering the air gap/squish to 1 mm (approx.) to increase low-end torque is possible, but requires additional attention to controlling ignition (24° if variable ignition) and carburetion (richer in partial throttle).