(b) Persons riding bicycles or skating or gliding  on  in-line  skates
upon  a  roadway  shall  not  ride more than two abreast. Persons riding
bicycles or skating or  gliding  on  in-line  skates  upon  a  shoulder,
bicycle  or  in-line  skate  lane,  or  bicycle  or in-line skates path,
intended for the use of bicycles or in-line skates may ride two or  more
abreast  if  sufficient  space  is available, except that when passing a
vehicle, bicycle or person on in-line skates, or pedestrian, standing or
proceeding along such shoulder, lane or path, persons riding bicycles or
skating or gliding on in-line skates shall ride, skate, or glide  single
file.  Persons  riding  bicycles or skating or gliding on in-line skates
upon a roadway shall ride,  skate,  or  glide  single  file  when  being
overtaken by a vehicle.
  (c)  Any  person  operating a bicycle or skating or gliding on in-line
skates who is entering the roadway from a private road, driveway,  alley
or over a curb shall come to a full stop before entering the roadway.
Structure New York Laws
Article 34 - Operation of Bicycles and Play Devices
1231 - Traffic Laws Apply to Persons Riding Bicycles or Skating or Gliding on In-Line Skates.
1236 - Lamps and Other Equipment on Bicycles.
1237 - Method of Giving Hand and Arm Signals by Bicyclists.
1239 - Reflective Material and Devices for In-Line Skating.
1242 - Additional Provisions Applicable to Bicycles With Electric Assist.
1242-A - Operation of a Bicycle With Electric Assist While Under the Influence of Alcohol or Drugs.
1243 - Shared Bicycle and Shared Bicycle With Electric Assist Systems; Data Protection.