Off-board update.....
As delivered 273 mm, eye to eye. Can be shortened one turn of the adjuster rod (1.5 mm x 2)(= 3 mm as in 6 mm ride height)
From there up - 5 threads on each end = 7.5 mm x 2
15 mm which results in a 30 mm ride height increase. (measured at the seat, I think)
Thanks! Just what I needed.