Airsal 50mm Big Bore Cylinder Kit for QMB139 50cc Engines – Upgrade to 81.3cc (Universal Parts 158-3)

$135.00

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Unavailable

Airsal 50cc Sport for the most common scooter models. It has a chrome-nikasil coated bore and is made of aluminium, which has better heat dissipation properties than cast-iron cylinders. The performance is comparable with the Polini Sport. A bigger carb is not necessary, but the main jet should be adjusted. (10mm gudgeon pin)

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