While many Ork warbands make use of a plethora of gun-festooned, fume-belching vehicles to ride screaming into battle on, some Orks take this love of vehicular slaughter one stage further and form so-called "Kults of Speed". The Speed Freeks devote themselves to their war machines: each mob competing to have the largest, loudest trukk or the fastest, shootiest bike.

They are often equipped with the most insane and diabolically dangerous gadgets their mekboys' febrile minds can come up with, from Battlewagons shielded by crackling force field generators to wings of Deth-Koptas, flying to battle on screeching rotor blades. Many Speed Freek warbands herald from the Evil Sunz clan with its famous chant of "red wunz go faster!" but almost any clan from the wreckage-scavaging Death Skulls to the wealthy Bad Moons can turn their forces into a tide of mechanised locusts that ravage whole worlds, leaving nothing but blood and ruination in their dirt stained tracks.