This crankshaft is a direct replacement for the stock 43mm crankshaft installed in all Kasea 90cc engines or any 90cc 2 stroke engine with a 43mm crank.
Installation of a 52mm cylinder and this 45mm crankshaft will increase your engine's displacement to just under 100cc's.
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![Crankshaft Assembly [100cc]](https://www.ajpartsstore.com/image/cache/catalog/11400-SKO-00_0509-150x150.jpg "Crankshaft Assembly [100cc]")