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front sprocket

  1. Front sprocket bolt won't budge

    ZR-7 Maintenance
    Time for a new chain/sprockets and thought I'd go with a 17t front sprocket just for fun. But I can't get the bolt off. I won't shift at all. I've flattened the washer, using a breaker bar with a 27mm socket, but I can't move it at all. Any tips guys?