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Cylinder Kit Polini Evolution P.R.E. 4 100cc 2T – Piaggio  
140.0240
PRE 4 D.52 CYLINDER KIT
  • SKU: 140.0240
  • Availability: in stock Many in stock Out of stock You can purchase this product but it's out of stock

Cylinder Kit Polini Evolution P.R.E 4 100cc Piaggio

$599.99 $749.99
Shipping calculated at checkout.
DESCRIPTION

The Polini Evolution P.R.E. 4 – 100cc Cylinder Kit is an extreme racing cylinder kit designed for Piaggio 2-stroke engines.

This cylinder is designed for:

- high RPM
- maximum power
- track/drag/running use

P.R.E. 4 technology is based on an ultra-aggressive transfer port design, a very high port timing, and tight tolerances, resulting in a complete and consistent engine configuration.

Specifications:
Bore (mm): 52
Stroke (mm): 47
Displacement (cc): 99.7
Piston pin diameter (mm): 14
Squish (mm): 0.65
Connecting rod length (mm): 100
Ring ring tolerance (mm): 0.35-0.40
Piston-to-cylinder coupling (mm): 0.08-0.10
Compression ratio: 16
Tightening torque - M7 cylinder (Nm): 14
Tightening torque - M7 cylinder head (Nm): 14
Tightening torque - M5 cylinder head (Nm): 8
Kart track fuel mixture percentage: 4%
Race track fuel mixture percentage: 5%
Optimal operating temperature (°C): 50-55

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