 The Organising Committee cited "logistical problems" with the import of raw materials from Serbia; the wood arrived late into Rio's summer, and the city's high humidity meant that the sensitive surface could not be laid as quickly as expected.Comments by Mayor Paes that the velodrome was only 85 percent complete, contradicting earlier comments on the venue being near-completion, only fueled more concern, as the Organising Committee set 31 May as the projected date for the venue's completion, and that opportunities for Olympic cyclists to train at the venue will be held on 25 – 27 June.Troubles further escalated when Tecnosolo, the venue's construction and operation contractor, filed for bankruptcy in late May.