Hi
I have a 150 mm OneUp V2 on mine. The total length of 150 V2 is 42 cm and effective length without actuator is 40,5 cm. When I push the post all the way down I have 24 cm outside of frame, so it goes 16,5 cm in before stop (18 cm with actuator). My insertion length seems to be 13,5 cm with 74,5 cm distance between center of bottom bracket and seat rails.