Muhammed Haris Ahmed, a 21-year-old medical student at King's College London, was killed on Tuesday as he cycled to Guy's Hospital.
Police were called at around 9.50am on Tuesday morning to reports of a tipper lorry in collision with a pedal cyclist. Mr Ahmed was pronounced dead at the scene.
A man in his 30s was arrested at the scene. He has been bailed to return pending further investigation.
The incident is being investigated by the collision investigation unit at Catford Traffic Garage.
Anyone who witnessed the collision is asked to contact the unit on 020 8285 1574 or Crimestoppers on 0800 555 111 to remain anonymous.
King's College London Student Union's website describes Mr Ahmed as a "respected and popular medical student".
The union's elections for sabbatical officers and trustees have been extended in recognition of the effect that Mr Ahmed's death "has had on both the student body at King's and many of the candidates".
Mr Ahmed had been closely involved in 'RAG week' charity fundraising at Guy's and the KCL mountaineering society.
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