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Naraku crankshaft for Chinese 50cc 4-stroke 139 QMA/ QMB engined mopeds
This is an uprated heavy duty crankshaft complete with quality main bearings already mounted and a 16 tooth oil pump drive sprocket which makes for easy fitment.
Fits most Chinese 4-stroke GY6 engine 50cc mopeds (139QMA and 139QMB engines) such as Baotian and also Kymco 4-stroke.
Also fits Peugeot 4-stroke e.g. Speedfight 3, Vivacity ('08 on), Peugeot V-Clic.
13mm small end inner diameter.
Naraku NK100.81
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