LEESE have cranks as short as 135mm:
https://detail.tmall.com/item.htm?id=994760212896
Of course there is a 160mm version.
Or you can also find one on aliexpress:
https://www.aliexpress.com/item/1005008832402315.html
Then pick whatever spider based power meter and call it a day.
https://detail.tmall.com/item.htm?id=994760212896
Of course there is a 160mm version.
Or you can also find one on aliexpress:
https://www.aliexpress.com/item/1005008832402315.html
Then pick whatever spider based power meter and call it a day.

