For 43 mm long stroke crank.
High quality casted alloy cylinder kit with ultra hard wearing Nicasil plating, especially designed for the long stroke crankshaft.
These cylinder kits are designed for a maximum power output without loosening reliability. Similar to some Polini cylinder kits Italkit uses alloy even for liquid cooled barrels!
The porting layout delights with huge port areas and optimized port timings. Together with the long stroke crankshaft you have a nice 75cc engine. The port timings are suited to the long stroke crank and this gives the extra punch.
The single ring piston is perfectly suited for even the widest exhaust ports and the service performance is very good.
So the Alu Eco gives a very nice power increase and should be used at least with a 17,5mm carb. Even bigger carbs can be used with the Alu Eco. A well suited Sport exhaust or Racing expansion chamber should be used as well.
The delivery does not contain the long stroke crank!
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