Got a used spider gear from a mudpro and ground out the pin to use in mine but theres a difference. My old pin is clearly grroved for some reason, maybe to hold the gears in place? Looks like there were remnants of a tiny snap ring maybe. The pin sent to me is smooth. You can tell from the pic that the pin broke where the grooves are, wonder if they quit making them grooved because of this? I'm trying to find out the year of the bike the spider gear came out of.
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