Quoted from balzofsteel:I did some grinding on a cheapo bicycle chain breaker. It makes pushing the pin "just far enough" really easy.
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Similar tools are available on amazon or ebay for under $5 including postage.
I remember helping my friend with a sys1 and going oh crap to the roll pin. Now I have 2 and this thread was a life saver. I order a cheap chain break to help! See how this does