Cylinder 135cc d.58mm Vespa Primavera/Super/SL PK S/XL FL Evok Iron Boost

Cylinder 135cc d.58mm Vespa Primavera/Super/SL PK S/XL FL Evok Iron Boost.

From the renowned Italian manufacturer Evok, we present to you their new Cylinder Iron Boost.

Does not require the typical cutting of the half-moon on the crankcase flywheel side.

It can be installed with the original carburettor properly adjusted, but we recommend fitting a carburettor of at least 24 to get the most out of its potential.

Specifications:

• Stroke: 51mm
• Connecting rod: 97mm
• Displacement: 135cc
• Piston: Ø58 two segments
• Cylinder head: 8 anchoring points
• Exhaust stud distance: 56mm
• Timing: 124º intake, 180º exhaust
• Transfers: 5
• Exhaust manifold: 28mm

Suitable for all smallframe engines, note that on models PK 75 XL and FL 75 it is necessary to machine the crankcase.