Zenoah 30mm (+2mm) stroker crankshaft for R/C engines.
Manufactured by Zenoah in Japan.
When using on a Zenoah brand motor, no additional parts are required. If using on a CY motor, the Zenoah bearing/washers must be used
Requires cylinder modified to accommodate the +2mm stroke.
Zenoah part# 57595-3101
*NOT FOR G320RC
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