Yeah, that's the case with all orange bulbed/clear lens blinker lights afaik. It's to prevent you from accidentally using white bulbs which do have the pins at 12 and 6 o'clock. I guess it's a regulation thing.I can confirm that ............ They don't fit LOL !!
Wrong fitment, the pins on the Ducati Light are not diagonal they are 12oclock and 4 oclock.
The first ones I tried were like that, useless!19 LED 581 BAU15S PY21W TURN SIGNAL OFFSET PINS AMBER REAR INDICATOR 12V BULBS | eBay
These Arrived this morning, tried one. Terrible, very low light output worse than the original bulbs