The C3s have slightly more clearance between the races for expansion. They're prob much the same price as the ones you already got and maybe they will exchange them easily enough (though for that price it's not a big loss).
I'd fit the C3s just to be sure. it's only a slackish rubber timing belt running over them but best play safe than have a bearing seize up imo.
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Last edited by manwithredbike; 25-02-2020 at 09:00 PM..
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