Germany with the current World Champion Time Trial can send three riders, other countries can send one or two riders, depending on the results of this year.
The countries with a completed selection
Germany
Tony Martin
Patrick Gretsch
Bert Grabsch
Australia
Richie Porte
Rohan Dennis
Austria
Riccard Zoidl
Matthia Brandle
Belarus
Vasil Kiryienka
Kanstantsin Siutsou
Belgium
Thomas De Gendt
Kristoff Vandewalle
Great Britain
Bradley Wiggins
Alex Dowsett
Italy
Adriano Malori
Marco Pinotti
Netherlands
Lieuwe Westra
Niki Terpstra
New Zealand
Sam Bewley
Jesse Sergent
Poland
Michał Kwiatkowski
Maciej Bodnar
Slovakia
Peter Velits
Matej Jurco
South Africa
Reinardt J. van Rensburg
Jay Thomson
Russia
Ilnur Zakarin
Vladimir Gusev
Spain
Jonathan Castroviejo
Luis Leon Sanchez
Sweden
Tobias Ludvigsson
Gustav Erik Larsson
Switzerland
Fabian Cancellara
Reto Hollenstein
United Stated
Taylor Phinney
Andrew Talansky
Azerbaijan
Elchin Asadov
Colombia
Rafael Infantino
Chile
Carlos Ivan Oyarzun
Finland
Samuel Pökälä
Hong Kong
King Lok Cheung
Hungary
Gabor Fejes
Ireland
Nicolas Roche
Luxembourg
Bob Jungels
Mexico
Uri Martins Sandoval
Norway
Reidar Borgersen
Paraguay
Gustavo Mino
Tunisia
Rafaâ Chtioui
Qataar
Ahmed Albourdainy