40mm "50cc" kit for Peugeot 103, RCX, SPX, Fox, Wallaroo, and more.
Water cooled so you can stay cool on your trip to the moon.
Split exhaust port and giant transfers. The piston features 2 rings and lubrication holes to keep the exhaust bridge happy.
No decompression channel.
Comes with cylinder, head, piston, rings, clips, pin, and full gasket set.
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