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  1. #1 What size is Zongshen 125 gudgeon pin? 
    C-Moto Not-so-Noob
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    May 2017
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    UK
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    I'm experimenting building engines out of 244/253 parts and for my next project I need some high compression pistons. I was thinking of using 54mm Zongshen pitbike pistons but I can't find any information about what size the gudgeon pin is.

    The pistons in question are like these:
    https://www.aliexpress.com/item/54mm...ceBeautifyAB=0
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  2. #2 Re: What size is Zongshen 125 gudgeon pin? 
    Senior C-Moto Guru humanbeing's Avatar
    Join Date
    Dec 2008
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    1,476
    Why not ask the seller?
    I bet it's 14mm https://item.taobao.com/item.htm?id=18997417483
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