Rule 78
Full details about the correct procedure at roundabouts without cycle facilities are contained in Rules 184 to 190 . Watch out for vehicles crossing your path to leave or join the roundabout, remembering that drivers may not easily see you.
SteerTogether · Official English reference
Read rule 78
Cyclists: rules 59–82
Study cycling equipment, positioning, junctions, roundabouts and crossing guidance to understand how cyclists use the road.
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