On Sun., Jan. 7, cyclists will ride to the crash site of each of the 14 cyclists known to have been killed on the streets of New York City in 2006, holding a vigil at the white “ghost bike” memorial at each site to mark the deaths. The ride will start at 9 a.m. at the Time’s Up! space at 49 E. Houston St., and travel through the Bronx, Queens, Brooklyn and Manhattan, ending at 5:30 p.m. at the Memorial for Unknown Cyclists, at E. Houston and Lafayette Sts.