What are the actual lengths of the skewers?

The front is 156mm and will fit a 100mm OLD hub with up to 8mm thick dropouts.

The road rear is 188mm and fits 130mm OLD with up to 9mm thick dropouts

The MTB rear is 192mm and fits 135mm OLD with up to 8.5mm dropouts (or 130mm with up to 11mm dropouts)