Tricycles form the backbone of any extended activity.
Their necessity is manifested in three ways. The deeper we push our quest for domination into the Forbidden Zone, the greater we feel the effects of attrition. The high radiation, combined with the orgone flux produced by the wide-band chunkulation field, greatly amplify the effects of entropy. We also tend to make our journeys more interesting by jousting and running into things. These factors, coupled with the fact that Chunkcycles are crafted using the cheapest materials and unsound construction techniques, mean that we can expect our vehicles to lose functionality at any time.