what i did last year for the chains on all my bikes (except the fixie, because pressure is a bit high on the chain, and i cant risk a break cause i run brakeless) is invest 4 bukcs in a kmc or sram or wippermann connector link. they work like a charm and make repairs and thorough cleanings and chain replacements a breeze. i know its not free, but its well worth the money. those replacement chain pins suck and ive had breakage problems with them- walking 14 miles back to my car on a hot day when my mtb's chains replacement pin broke was such a bummer.