Creaky crank, taper question
So my crank started creaking today, and this has me worried because I think that my spindle is designed with an ISO taper while my cranks are Sugino RDs designed for a JIS taper. The spindle is the stock one on a Peugeot Super Competition (I believe they are referred to as PXN-10E). Can anyone determine for sure whether my Peugeot's stock spindle is JIS or ISO just by its origin? Is there a way of checking myself by taking measurements whether the taper is JIS or ISO?