If you're only visiting for a couple of days and not planning to explore beyond Old Town, Downtown, and Nob Hill, the city's public bus system, ABQ Ride, is a practical if somewhat slow-going option. It's speedier, Rapid Ride, Red Line service plies the Central Avenue corridor and runs until about 9 pm Monday through Saturday and until 6 pm Sunday. The service is extended until about 1 am on Friday and Saturday nights June through September. Rapid Ride also has a Blue Line that runs from UNM to the West Side, and a Green Line that can get you from Downtown into the Northeast Heights. You can download trip-planning apps or obtain a customized trip plan at the city's public bus website, ABQ Ride.
The Alvarado Transportation Center Downtown is Rapid Ride's central hub and offers direct connections to the NM Rail Runner Express train service north to Santa Fe and to the South Valley suburbs. Buses accept bicycles at no additional charge, although space is limited. Service is free on the Downtown D-RIDE shuttle route (available only on weekdays), or if you are transferring (to any route) from the Rail Runner; otherwise, the fare is $1 (bills or coins, exact change only; 25¢ transfers may be requested on boarding). Bus stops are well marked.
ABQ Ride (505/243–7433. www.cabq.gov/transit.)