Aftermarket 50cc aluminium cylinder kit with hard chrome-plated liner coating. This construction is normally found on more expensive tuning parts. This cylinder kit gives you this Know-How at a fair price. Aluminium cylinders disperse the combustion heat better than standard cast iron cylinders. Heat build-up is significantly reduced, meaning less wear. Performance is only slightly better than the original item. Delivery includes all necessary parts e.g.: piston, piston rings, gasket set etc. Note: This cylinder kit is not suitable for mopeds with a carburettor heater, as the necessary connection are not present.