You searched for: “dismountable
dismountable (adjective) (not comparable)
Capable of being taken apart: Jack was interested in old clocks and the one he received from his grandfather was a dismountable one which he disassembled and cleaned.

The tires of the trailer were dismountable and so Tom took them off and replaced them with winter tires.

This entry is located in the following units: -able (page 11) dis-, di-, dif- (page 19) mont-, mount- (page 1)