We’re not quite ready to call Portland, Oregon, a drinking town with a cycling problem, but HOPWORKS URBAN BREWERY, near the Clinton district, is persuasive. The biodiesel-powered brewery has been pumping out suds for just seven months and recently sponsored the PrestoVelo cycling team. In Hopworks’ new brewpub, which opened in March, busted bike frames hang overhead, a cyclocross course out back provides entertainment, and the bartenders moonlight as mechanics: They’ll help you fix a creaky bottom bracket at 3 P.M., then pull your last draft of Hopworks Organic IPA at midnight for the wobbly ride home.