The Independent Mids come with a lower 52mm profile to give you quick and responsive pops for flip tricks and the inverted kingpin gives you more grind clearance for your kingpin. The truck can be tightened with either a 5.5mm Allen wrench or the classic 9/16 hex wrench.
Size Chart:
129 - 7.6"
139 - 8.0"
144 - 8.25"
149 - 8.5"
159 - 8.75"
169 - 9.125"