MICHIGAN VEHICLE CODE (EXCERPT) Act 300 of 1949
257.660b Operation of bicycle upon highway or street; riding more than 2 abreast.
Sec. 660b.
Two or more individuals operating bicycles upon a highway or street shall not ride more than 2 abreast except upon a path or portion of the highway or street set aside for the use of bicycles.
May I humbly suggest that club members stop riding two abreast.