clockwise rightwards and leftwards open circle arrows

U+1F501

clockwise rightwards and leftwards open circle arrows with circled one overlay

U+1F502

clockwise downwards and upwards open circle arrows

U+1F503

anticlockwise downwards and upwards open circle arrows

U+1F504

bicycle

U+1F6B2

no bicycles

U+1F6B3

bicyclist

U+1F6B4

mountain bicyclist

U+1F6B5